WO2019004362A1 - Appareil et programme d'aide à l'exploitation des navires - Google Patents

Appareil et programme d'aide à l'exploitation des navires Download PDF

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Publication number
WO2019004362A1
WO2019004362A1 PCT/JP2018/024611 JP2018024611W WO2019004362A1 WO 2019004362 A1 WO2019004362 A1 WO 2019004362A1 JP 2018024611 W JP2018024611 W JP 2018024611W WO 2019004362 A1 WO2019004362 A1 WO 2019004362A1
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WIPO (PCT)
Prior art keywords
value
ship
motion
resistance increase
hull
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PCT/JP2018/024611
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English (en)
Japanese (ja)
Inventor
建二郎 小橋
成子 大橋
恭平 石上
久之輔 河田
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川崎重工業株式会社
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Priority to JP2019527024A priority Critical patent/JPWO2019004362A1/ja
Publication of WO2019004362A1 publication Critical patent/WO2019004362A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B49/00—Arrangements of nautical instruments or navigational aids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/02—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring
    • B63H25/04—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring automatic, e.g. reacting to compass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G3/00—Traffic control systems for marine craft

Definitions

  • the present invention relates to an operation support device for a ship and an operation support program.
  • Patent Document 1 includes an operation monitoring system that collects data on equipment and ship motion of a target vessel, a navigation analysis system that analyzes the performance in the actual sea area of the target vessel in transit, and weather conditions in the sea area of the ship.
  • An operation support system for a ship is described which has an optimum route calculation system for calculating an optimum route based on information on sea conditions and currents, and these are configured to form an analysis cycle.
  • resistance increase characteristic information and movement characteristic information in regular waves obtained from theoretical calculation and tank test for the ship, and the navigation sea area of the ship
  • resistance increase characteristic data and kinetic characteristic data in the irregular wave are created.
  • the resistance increase characteristic data in the irregular wave indicates the value of the resistance increase due to the wave in each of the plurality of sea conditions
  • the movement characteristic data in the irregular wave includes the plurality of each of the sea condition. The values of the hull movement at are indicated.
  • the fuel consumption is estimated based on the forecasted oceanographic condition on the assumed route and the resistance increase characteristic data in the irregular wave, and the forecasted oceanographic condition on the assumed route; Ship motion is estimated based on the motion characteristic data in the irregular wave.
  • one assumed route is selected from the plurality of assumed routes and the optimum route is decided.
  • the present invention has been made to solve the problems as described above, and it is possible to provide an operation support apparatus and an operation support program for ships capable of improving the estimation accuracy of evaluation indicators (for example, fuel consumption) on assumed routes. It is intended to be provided. It is another object of the present invention to provide a ship operation support device and operation support program capable of improving the estimation accuracy of a hull motion index (a value of a hull motion or a hull motion increase rate) on a supposed route.
  • a hull motion index a value of a hull motion or a hull motion increase rate
  • the ship operation support apparatus is capable of deriving a value of an increase in resistance due to waves in each of a plurality of sea conditions of the ship, the resistance in irregular waves.
  • the value of resistance increase due to waves during actual operation is calculated based on the resistance increase characteristic holding unit that stores the increase characteristic information in the resistance increase characteristic storage medium and the data related to the ship resistance measured during actual operation of the ship.
  • the value of the resistance increase due to waves in the sea conditions corresponding to the oceanographic data during the actual operation based on the resistance increase characteristic information is such that the value of the resistance increase due to the waves during the actual
  • the vessel navigates based on the resistance increase characteristic change unit that changes the increase characteristic information, the sea condition forecast on the assumed route, and the resistance increase characteristic information after being changed by the resistance increase characteristic change unit.
  • a, and evaluation index estimation unit that estimates a metric for serial supposed route.
  • the value of the increase in resistance due to waves in sea conditions and the corresponding sea condition data derived from the resistance increase characteristic information is a value based on the value of increase in resistance due to waves during actual operation.
  • the evaluation index such as the fuel consumption on the assumed route is estimated, so that the estimation accuracy of the evaluation index is improved as the resistance increase characteristic information is changed. It becomes possible.
  • data relating to ship resistance includes data relating to the main output of a ship during actual operation (for example, fuel consumption per predetermined time), ship speed, propeller rotation speed, and the like. , Course and heading.
  • the evaluation index may be horsepower, ship speed, ship resistance, required time, etc.
  • the amount of increase or decrease based on navigation in plain water may be used for these, the rate of increase in fuel consumption (or the coefficient of increase in fuel consumption that made the amount of increase in fuel consumption non-dimensional), the rate of increase in horsepower (or The increase in horsepower increase is non-dimensionalized, the ship speed decrease rate (or the ship speed decrease rate non-dimensionalized), the ship's drag increase rate (or the ship's increase in ship resistance non-dimensional) The resistance increase factor), the required time increase rate, etc. may be used.
  • the evaluation index does not include a hull movement index (a value of the hull movement, a hull movement increase rate) related to the hull movement described later.
  • the vessel operation support apparatus can derive resistance increase characteristic information in irregular waves that can derive a value of resistance increase due to waves in each of a plurality of sea conditions of the ship.
  • the value of resistance increase due to waves during actual operation is calculated based on the resistance increase characteristic holding unit stored in and the data related to the hull resistance measured during actual operation of the ship, and the value based on the resistance increase characteristic information is calculated.
  • the resistance increase characteristic conversion information is created to convert the value of the resistance increase due to waves under the sea conditions under the actual operation to the value based on the value of the resistance increase due to the waves during the actual operation.
  • a resistance increase characteristic conversion information creation unit to be stored in the resistance increase characteristic conversion information storage medium; and information obtained by converting the resistance increase characteristic information based on the resistance increase characteristic conversion information; Information and on the basis of the hydrographic forecast of supposition route, the ship is equipped with an evaluation index estimation unit that estimates a metric for the assumed route to sail.
  • the value of the resistance increase due to waves in the sea conditions and the corresponding sea condition data based on the resistance increase characteristic information is converted to a value based on the value of the resistance increase due to the waves during actual operation To create resistance increase characteristic conversion information. Then, the information obtained by converting the resistance increase characteristic information based on the resistance increase characteristic conversion information is derived, and the evaluation index such as the fuel consumption in the assumed route is estimated based on the converted information. As the measurement data by operation increases and the resistance increase characteristic conversion information increases, it is possible to improve the estimation accuracy of the evaluation index.
  • motion characteristic information in irregular waves can be stored in the motion characteristic storage medium which can derive the value of the hull movement in each of a plurality of sea conditions of the ship.
  • Motion characteristic holding unit, the value of the hull motion measured at the time of actual operation of the ship, and the oceanographic data at the time of actual operation based on the motion characteristic information, based on the oceanographic data at the time of actual operation A motion characteristic change unit that changes the motion characteristic information such that a value of a hull motion under sea conditions becomes a value based on a value of a hull motion during actual operation; a sea condition forecast on the assumed route; and the motion characteristics change
  • a hull motion estimation unit configured to estimate a hull motion index related to the hull motion that occurs when the boat navigates the assumed route based on the motion characteristic information after being changed by a section. It can have.
  • the movement characteristic information is derived such that the value of the hull movement in the sea condition and the corresponding sea state data derived from the movement characteristic information becomes a value based on the value of the hull movement in the actual operation. Change And since the hull motion index in the assumed route is estimated based on the motion characteristic information after the change, it is possible to improve the estimation accuracy of the hull motion index as the motion characteristic information is changed. .
  • the hull motion index is a value of hull motion or a hull motion increase rate based on navigation in plain water.
  • motion characteristic information in irregular waves can be stored in the motion characteristic storage medium which can derive the value of the hull movement in each of a plurality of sea conditions of the ship.
  • the ship comprises: a creation unit; and information derived by converting the motion characteristic information on the basis of the motion characteristic conversion information, derived, and based on the converted information and a forecast of sea conditions on the assumed route, the assumed route is the ship
  • a hull motion estimator for estimating the ship motion indicators of ship motion that occurs when the sail may further include a.
  • the movement characteristic for converting the value of the ship movement in the sea condition and the corresponding sea condition data based on the movement characteristic information to a value based on the value of the ship movement in the actual operation Create conversion information. Then, information obtained by converting the movement characteristic information based on the movement characteristic conversion information is derived, and the hull movement index in the assumed route is estimated based on the converted information, so measurement data by actual operation increases. As the motion characteristic conversion information increases, it is possible to improve the estimation accuracy of the hull motion index.
  • a plurality of the assumed routes exist, and the evaluation index estimation unit is configured to estimate an evaluation indicator for each of the plurality of assumed routes, According to the evaluation index estimation unit of the evaluation index estimation unit, an optimum route selection unit is further provided which selects an optimum route satisfying a predetermined condition from among the plurality of assumed routes based on the evaluation index of each of the assumed routes. Good.
  • the evaluation index estimation unit is configured to estimate an evaluation indicator for each of the plurality of assumed routes
  • the hull motion estimation unit is configured for each of the plurality of assumed routes.
  • An optimal route selection unit may be further provided for selecting an optimal route that satisfies a predetermined condition from among the plurality of assumed routes.
  • the operation support apparatus for a ship is a movement storing motion characteristic information in irregular waves capable of deriving a value of hull movement in each of a plurality of sea conditions of the ship in the movement characteristic storage medium.
  • the movement characteristic change unit changes the movement characteristic information so that the value of the ship movement in the ship becomes a value based on the value of the ship movement at the time of actual operation, the sea condition forecast in the assumed route, and the movement characteristic change unit
  • a hull motion estimation unit configured to estimate a hull motion index related to the hull motion that occurs when the boat navigates the assumed route based on the motion characteristic information after being processed.
  • the movement characteristic information is derived such that the value of the hull movement in the sea condition and the corresponding sea state data derived from the movement characteristic information becomes a value based on the value of the hull movement in the actual operation. Change And since the hull motion index in the assumed route is estimated based on the motion characteristic information after the change, it is possible to improve the estimation accuracy of the hull motion index as the motion characteristic information is changed. .
  • the operation support apparatus for a ship is a movement that stores movement characteristic information in irregular waves in which movement motion information in irregular waves can derive the value of hull movement under a plurality of sea conditions of the ship in the movement characteristic storage medium.
  • a sea state condition corresponding to the sea state data at the time of the actual operation based on the movement characteristic information based on the value of the hull movement measured at the time of the actual operation of the ship, the characteristic holding unit, and the sea Motion characteristic conversion information creation unit which creates motion characteristic conversion information for converting the value of the hull motion in the above into a value based on the value of the ship motion at the time of actual operation and stores it in the motion characteristic conversion information storage medium
  • the information obtained by converting the movement characteristic information based on the movement characteristic conversion information is derived, and the vessel navigates the assumed route based on the converted information and the sea condition forecast on the assumed route. It includes a hull motion estimator for estimating the ship motion indicators of ship motion occurring, the.
  • the movement characteristic for converting the value of the ship movement in the sea condition and the corresponding sea condition data based on the movement characteristic information to a value based on the value of the ship movement in the actual operation Create conversion information. Then, information obtained by converting the movement characteristic information based on the movement characteristic conversion information is derived, and the hull movement index in the assumed route is estimated based on the converted information, so measurement data by actual operation increases. As the motion characteristic conversion information increases, it is possible to improve the estimation accuracy of the hull motion index.
  • the hull motion estimation unit is configured to estimate a hull motion index for each of the plurality of assumed routes.
  • an optimal route selection unit for selecting an optimal route satisfying a predetermined condition from the plurality of assumed routes based on the hull motion index of each assumed route estimated by the hull motion estimation unit.
  • a program for supporting operation of a ship comprising: resistance resistance increase characteristic information in irregular waves capable of deriving values of resistance increase due to waves in each of a plurality of sea conditions The value of resistance increase due to waves during actual operation is calculated based on the resistance increase characteristic holding function stored in the increase characteristic storage medium and data related to ship resistance measured during actual operation of the ship, and the increase in resistance is calculated.
  • the resistance increase characteristic information is changed such that the value of the resistance increase due to waves under the sea conditions and the corresponding sea condition data based on the characteristic information becomes a value based on the value of the resistance increase due to the waves during the actual operation
  • the vessel navigates based on the resistance increasing characteristic changing function, the sea condition forecast on the assumed route, and the resistance increasing characteristic information after being changed by the resistance increasing characteristic changing function. It is intended for implementing a metric estimation function of estimating the evaluation index for the assumed route.
  • the value of the increase in resistance due to waves in sea conditions and the corresponding sea condition data derived from the resistance increase characteristic information is a value based on the value of increase in resistance due to waves during actual operation.
  • the data related to the hull resistance includes data on the main engine output of the ship during actual operation (for example, fuel consumption per predetermined time), ship speed, propeller rotation speed, course and heading. .
  • the ship operation support program can increase the resistance increase characteristic information in irregular waves by which the value of resistance increase due to waves can be derived from the computer in each of a plurality of sea conditions of the ship.
  • the value of resistance increase due to waves during actual operation is calculated based on the resistance increase characteristic holding function stored in the characteristic storage medium and data related to ship resistance measured during actual operation of the ship, and the resistance increase characteristics are calculated.
  • the resistance increase characteristic conversion for converting the value of the resistance increase due to waves under the actual conditions based on the information on the sea condition data during the actual operation and the value corresponding to the value of the resistance increase due to the waves during the actual operation
  • Resistance increase characteristic conversion information creation function of creating information and storing in resistance increase characteristic conversion information storage medium, and converting the resistance increase characteristic information based on the resistance increase characteristic conversion information Information derived, and based on the hydrographic forecast of supposition route and the converted information, the evaluation index estimating function which the ship is to estimate the metrics for the assumed route to navigate, is intended for realizing.
  • the value of the resistance increase due to waves in the sea conditions and the corresponding sea condition data based on the resistance increase characteristic information is converted to a value based on the value of the resistance increase due to the waves during actual operation To create resistance increase characteristic conversion information. Then, the information obtained by converting the resistance increase characteristic information based on the resistance increase characteristic conversion information is derived, and the evaluation index on the assumed route is estimated based on the converted information. As the resistance increase characteristic conversion information increases, the estimation accuracy of the evaluation index can be improved.
  • the computer is further provided with movement characteristic information in irregular waves capable of deriving a value of hull movement in each of a plurality of sea conditions of the ship.
  • movement characteristic information in irregular waves capable of deriving a value of hull movement in each of a plurality of sea conditions of the ship.
  • the value of the hull movement measured at the time of actual operation of the ship and the oceanographic data at the time of actual operation
  • Motion characteristic change function for changing the motion characteristic information such that the value of the hull movement under the sea condition data corresponding to the sea condition becomes the value based on the value of the hull movement during the actual operation, and the sea condition forecast in the assumed route
  • the hull motion estimation function of estimating may be caused to realize.
  • the movement characteristic information is derived such that the value of the hull movement in the sea condition and the corresponding sea state data derived from the movement characteristic information becomes a value based on the value of the hull movement in the actual operation. Change And since the hull motion index in the assumed route is estimated based on the motion characteristic information after the change, it is possible to improve the estimation accuracy of the hull motion index as the motion characteristic information is changed. .
  • the computer is further provided with movement characteristic information in irregular waves capable of deriving a value of hull movement in each of a plurality of sea conditions of the ship.
  • movement characteristic information in irregular waves capable of deriving a value of hull movement in each of a plurality of sea conditions of the ship.
  • the value of the hull movement measured at the time of actual operation of the ship and the oceanographic data at the time of actual operation
  • Motion characteristic conversion information for converting the value of the ship motion in the sea condition data corresponding to the sea condition to the value based on the value of the ship motion at the time of the actual operation to create the movement characteristic converted information storage medium
  • a motion characteristic conversion information creation function to be stored and information obtained by converting the motion characteristic information based on the motion characteristic conversion information is derived, and the converted information and the sea condition in the assumed route are derived.
  • the assumed route may be to realize a hull motion estimation function of estimating the ship motion indicators of ship motion that occurs when the ship is sailing.
  • the movement characteristic for converting the value of the ship movement in the sea condition and the corresponding sea condition data based on the movement characteristic information to a value based on the value of the ship movement in the actual operation Create conversion information. Then, information obtained by converting the movement characteristic information based on the movement characteristic conversion information is derived, and the hull movement index in the assumed route is estimated based on the converted information, so measurement data by actual operation increases. As the motion characteristic conversion information increases, it is possible to improve the estimation accuracy of the hull motion index.
  • a plurality of the assumed routes exist, and the evaluation index estimation function estimates an evaluation indicator for each of the plurality of assumed routes, and the computer Further, an optimum route selection function of selecting an optimum route satisfying a predetermined condition from among the plurality of assumed routes is realized based on the evaluation indicator of each assumed route estimated by the evaluation index estimating function. You may do so.
  • the evaluation index estimation function estimates an evaluation indicator for each of the plurality of assumed routes
  • the hull motion estimation function is a hull motion for each of the plurality of assumed routes.
  • An index is estimated, and the computer is further based on an evaluation index of each assumed route estimated by the evaluation index estimating function and a hull movement index of each assumed route estimated by the ship motion estimating function.
  • the navigation support program for a ship according to the third aspect is characterized in that the movement characteristic information in the irregular wave can be derived from the movement characteristic storage medium capable of deriving the value of the hull movement in each of the plurality of sea conditions of the ship on the computer.
  • the movement characteristic information is derived such that the value of the hull movement in the sea condition and the corresponding sea state data derived from the movement characteristic information becomes a value based on the value of the hull movement in the actual operation. Change And since the hull motion index in the assumed route is estimated based on the motion characteristic information after the change, it is possible to improve the estimation accuracy of the hull motion index as the motion characteristic information is changed. .
  • the vessel navigation support program is characterized in that the movement characteristic information in the irregular wave can be derived from the movement characteristic storage medium which can derive the value of the hull movement under each of the plurality of sea conditions of the ship on the computer.
  • the movement characteristic information in the irregular wave can be derived from the movement characteristic storage medium which can derive the value of the hull movement under each of the plurality of sea conditions of the ship on the computer.
  • the movement characteristic information in the irregular wave can be derived from the movement characteristic storage medium which can derive the value of the hull movement under each of the plurality of sea conditions of the ship on the computer.
  • Motion characteristic conversion information for creating motion characteristic conversion information for converting the value of the hull movement under the changing sea conditions to be a value based on the value of the hull movement at
  • the movement characteristic for converting the value of the ship movement in the sea condition and the corresponding sea condition data based on the movement characteristic information to a value based on the value of the ship movement in the actual operation Create conversion information. Then, information obtained by converting the movement characteristic information based on the movement characteristic conversion information is derived, and the hull movement index in the assumed route is estimated based on the converted information, so measurement data by actual operation increases. As the motion characteristic conversion information increases, it is possible to improve the estimation accuracy of the hull motion index.
  • a plurality of the assumed routes exist, and the hull motion estimation function estimates a hull motion index for each of the plurality of assumed routes, and the computer Furthermore, based on the hull motion index of each of the assumed routes estimated by the hull motion estimation function, an optimal route selection function of selecting an optimum route that satisfies a predetermined condition from among the plurality of assumed routes, It may be realized.
  • the resistance increase characteristic information in the irregular wave is, for example, the resistance increase characteristic information in the regular wave of the ship, which is obtained in advance based on theoretical calculation and a tank test.
  • the resistance increase characteristic data in the irregular wave which is created based on the wave spectrum assumed in the sea area where the ship is likely to travel and in which the value of the resistance increase due to the wave in each of the plurality of sea conditions is indicated
  • the resistance increase characteristic data in the irregular wave may be a resistance increase characteristic function in the irregular wave converted to a function.
  • the resistance increase characteristic information in the irregular wave may be created by CFD (computational fluid dynamics) calculation or the like.
  • the movement characteristic information in the irregular wave may be, for example, movement characteristic information in the regular wave of the ship which is obtained in advance based on theoretical calculation or a water tank test.
  • motion characteristic data in an irregular wave which is created based on a wave spectrum assumed in the sea area where the ship is likely to travel, and in which the value of the hull movement in each of the plurality of sea conditions is indicated.
  • the motion characteristic data in the irregular wave may be a motion characteristic function in the irregular wave converted to a function.
  • motion characteristic information in irregular waves may be created by CFD calculation or the like.
  • the value based on the value of the increase in resistance due to waves during actual operation which is used when changing the resistance increase characteristic information in the above-described operation support device and operation support program for ships, is, for example, the resistance due to waves during actual operation.
  • the increase value itself may be used, or the arithmetic mean of the value of the increase in resistance by the wave before change and the value of the increase in resistance by the wave at actual operation, or the value of increase in resistance by wave before change and the time of actual operation
  • the value based on the value of resistance increase due to waves during actual operation is not limited to the above-mentioned arithmetic mean value or weighted average value etc.
  • the value of resistance increase due to waves before change and the resistance increase due to waves during actual operation may be a smoothed value.
  • the movement characteristic information in the irregular wave is also changed, the movement characteristic information in the irregular wave after the change is reflected to change the resistance increase characteristic information in the irregular wave. May be
  • the value based on the value of the hull movement at the time of actual operation used when changing the movement characteristic information in the above-mentioned vessel operation support device and operation support program is, for example, the value itself of the hull movement at the time of actual operation. Good, the arithmetic mean of the ship motion value before change and the ship motion value at actual operation, or the weighted average value of the ship motion value before change and the value of ship motion at actual operation It may be.
  • the value based on the value of the hull movement at the time of actual operation is not limited to the above-mentioned arithmetic mean value or weighted average value etc., but the error between the value of the hull movement before change and the value of the hull movement at the actual operation It may be a smoothed value.
  • a vessel operation support device and an operation support program having the configuration described above and capable of improving the estimation accuracy of the evaluation index and / or the hull movement index on the assumed route. Play an effect.
  • FIG. 1 is a schematic configuration diagram of a system including an operation support device for a ship according to an embodiment of the present invention.
  • FIGS. 2A, 2B, and 2C are flowcharts showing an outline of an example of the operation of the operation support apparatus.
  • FIG. 3 (A) is a diagram showing an example of motion characteristic information in a regular wave
  • FIG. 3 (B) is a diagram showing an example of a wave spectrum
  • FIG. 3 (C) is an irregular wave.
  • FIG. 3D is a diagram showing an example of motion characteristic data of the table as table data
  • FIG. 3D is a diagram showing an example of motion characteristic data in an irregular wave as curved surface data.
  • FIG. 3 (A) is a diagram showing an example of motion characteristic information in a regular wave
  • FIG. 3 (B) is a diagram showing an example of a wave spectrum
  • FIG. 3 (C) is an irregular wave.
  • FIG. 3D is a diagram showing an example of motion characteristic data of the table as table data
  • FIG. 4 is a graph showing a reference speed horsepower curve used to explain the method of calculating the ship speed decrease rate.
  • FIG. 5 is a graph showing a reference speed horsepower curve used to explain the method of calculating the horsepower increase rate.
  • FIG. 6 is a graph showing a reference speed force resistance curve used to explain the method of calculating the hull resistance increase rate.
  • FIG. 7 is a diagram for explaining the normalization of the ship speed reduction rate.
  • FIG. 8 is a diagram for explaining the normalization of the horsepower increase rate.
  • FIG. 9 is a diagram for explaining the normalization of the hull resistance increase rate.
  • FIG. 10 is a diagram for explaining a method of creating a performance speed horsepower curve.
  • FIG. 11 is a diagram for explaining a method of determining the ship performance in the assumed sea weather.
  • FIG. 12 is a diagram for describing the characteristic information of the wave spectrum.
  • FIGS. 13 (A) to 13 (D) are diagrams showing an example of a wave spectrum in which the representative wave height and the representative wave cycle are the same and the characteristic information is different.
  • FIG. 14 is a schematic configuration diagram of a system including a ship operation support device of a modification of the present embodiment.
  • FIGS. 15A, 15B, and 15C are flowcharts showing an outline of an example of the operation of the operation support device of the modification example.
  • FIG. 1 is a schematic configuration diagram of a system including an operation support device for a ship according to an embodiment of the present invention.
  • the operation support apparatus 1 of this ship can target a plurality of ships as the support target, the support process for each ship is the same, so here, the support target is one ship 3 Explain as.
  • the operation support device 1 is provided on land, and includes a land side communication device 11, a processing device 12, an input device 21, a display device 22, and storage media M1 to M6.
  • Each of the storage media M1 to M6 may be configured by separate storage devices, or a plurality of storage media may be configured by one storage device.
  • the processing device 12 is a computer having an arithmetic unit such as a CPU and a storage medium such as a ROM and a RAM, and the CPU executes a predetermined program (such as a ship operation support program) stored in advance in the storage medium. The operation of each part of the operation support device 1 is controlled by the control.
  • the CPU executes the operation support program of the ship, thereby the motion characteristic creating unit 13 also serving as the motion characteristic holding unit, the motion characteristic changing unit 14, and the resistance increase characteristic creating unit 15 serving as the resistance increase characteristic holding unit. It functions as a resistance increase characteristic change unit 16, a hull motion estimation unit 17, a fuel consumption estimation unit (evaluation index estimation unit) 18, an optimum route selection unit 19 and the like.
  • the input device 21 is configured by a mouse, a keyboard, and the like, and is a unit that receives an input by a user operation.
  • the input device 21 outputs, to the processing device 12, input information by the operation of the user.
  • the display device 22 is configured by a display device such as a liquid crystal display, and displays information according to display data given from the processing device 12 on the screen.
  • the land side communication device 11 is connected to the Internet 4.
  • the processing device 12 controls the land side communication device 11, acquires sea state weather information from the external organization 5 via the Internet 4, and stores it in the storage medium M2.
  • the external organization 5 is, for example, the Japan Meteorological Agency or the National Oceanic and Atmospheric Administration (NOAA), and is not limited to one.
  • the land side communication device 11 can mutually communicate with the ship side communication device 31 of the ship 3 via the communication satellite 2.
  • the ship 3 is provided with a ship-side communication device 31, a processing device 32 including a computer, a storage device 33, a display device 34, and a measurement system 35.
  • a processing device 32 including a computer
  • a storage device 33 In the storage device 33, chart data, navigation plan data and the like are stored in advance.
  • the measurement system 35 includes various measurement devices capable of measuring the position information (latitude and longitude) of the ship 3, time, ship speed, etc. Ru.
  • the processing unit 32 stores the actual survey data in the storage unit 33 and outputs the data to the ship-side communication unit 31.
  • the ship-side communication device 31 transmits the voyage measurement data to the land-side communication device 11 via the communication satellite 2.
  • the cruise measurement data transmitted to the land side communication device 11 is stored by the processing device 12 in the storage medium M3. Details of this voyage measurement data will be described later.
  • the storage medium M1 prestores individual ship performance data such as the gist of the ship 3 to be supported and water tank test data.
  • individual ship performance data resistance increase characteristic information and motion characteristic information in regular waves of the ship 3 obtained from theoretical calculation and tank test, wind pressure resistance coefficient information, flat water characteristic information of the ship (propulsion efficiency etc. Etc. are included.
  • the storage medium M2 stores information on sea weather forecast obtained from the external organization 5.
  • information on the wave surface corresponding to the sea surface condition assumed to be in the sea area where the ship 3 may travel, that is, the irregular wave is also stored.
  • the storage medium M3 stores the aforementioned voyage measurement data transmitted from the ship 3.
  • the voyage measurement data is, for example, time-series data measured and transmitted at predetermined time intervals, including position information of the ship 3, time, ship speed, horsepower, fuel consumption per predetermined time, propeller rotation speed, course, It includes heading, ship movement (pitching, rolling, heaving, etc.) values, draft, displacement, actual sea conditions and weather data encountered during the voyage.
  • Actual sea state and meteorological data include wave direction angle (wave incident angle to the ship), wave period (wavelength), wave height, wind direction, wind speed and the like.
  • the storage medium M4 stores all data (for example, chart data etc.) required to execute the operation support program.
  • the storage medium M5 motion characteristic storage medium
  • the storage medium M6 resistance increase characteristic storage medium
  • FIGS. 2A, 2B, and 2C are flowcharts showing an outline of an example of the operation of the operation support device 1, respectively. These operations are realized by the processing device 12 executing a ship operation support program.
  • the user operates the input device 21 to process a vessel designation instruction (instruction to designate a vessel to be supported) and a characteristic data creation instruction in an irregular wave. It is implemented by being input to the device 12.
  • the order of step S11 and step S12 may be reversed.
  • Step S11 is processing when the processing device 12 functions as the motion characteristic creation unit 13.
  • step S11 a plurality of motion characteristic information (ship response function) in the regular wave of the ship 3 stored in the storage medium M1 and a function representing the wave spectrum stored in the storage medium M2 are obtained.
  • Motion characteristic data in the irregular wave in which the value of the ship motion in each sea condition is indicated is created and stored in the storage medium M5.
  • step S12 is processing when the processing device 12 functions as the resistance increase characteristic creation unit 15.
  • each of the plurality of resistance increase characteristic information (resistance increase characteristic function) in the regular wave of the ship 3 stored in the storage medium M1 and the wave spectrum stored in the storage medium M2 The resistance increase characteristic data in the irregular wave in which the value of the resistance increase by the wave in the sea conditions is indicated is created and stored in the storage medium M6.
  • FIG. 3 (A) is a diagram showing an example of motion characteristic information in a regular wave
  • FIG. 3 (B) is a diagram showing an example of a wave spectrum
  • FIG. 3 (C) is an irregular wave
  • FIG. 3D is a diagram showing an example of motion characteristic data of the table as table data
  • FIG. 3D is a diagram showing an example of motion characteristic data in an irregular wave as curved surface data.
  • pitching, rolling and heaving are considered as the hull movement of the ship 3.
  • pitching rolling and heaving are considered as the hull movement of the ship 3.
  • the vertical axis indicates the pitching amplitude in the regular wave of the ship 3
  • the horizontal axis T indicates the wave period.
  • ⁇ ( ⁇ 1 , ⁇ 2 , ⁇ 3 ,...) indicates the wave directional angle, and here, the characteristic of the pitching amplitude with respect to the wave period in each of the three wave directional angles ⁇ 1 , ⁇ 2 and ⁇ 3 (Pitching response function in regular wave) is shown.
  • the horizontal axis T indicates a wave period
  • W 1 , W 2 , and W 3 have representative wave periods T 1 , T 2 , and T 3 , respectively, and the representative wave height H is the same.
  • the wave spectrum in the case of H 1 is shown.
  • the table Pt1 is configured by the pitching value in the irregular wave in the case where the representative wave height H is the wave spectrum (W 1 , W 2 , W 3 ) of H 1 .
  • the table Pt2 is representative wave height H is formed by the pitching of the values in an irregular wave when the wave spectrum H 2 (not shown)
  • table Pt3 is the wave spectrum (not shown in the representative wave height H is H 3 It consists of the pitching value in the irregular wave in the case of.
  • These tables Pt1 to Pt3 and the like constitute pitching characteristic data in irregular waves (motion characteristic data in irregular waves relating to pitching) consisting of pitching values under wave conditions of wave height, wave period and wave direction angle. Be done.
  • step S11 the table Pt1 in the case where the representative wave height H is the wave spectrum (W 1 , W 2 , W 3 ) of H 1 is, for example, the wave directional angles ⁇ 1 , ⁇ 2 , ⁇ 3 ,
  • data P ij (i, j is 1, 2, 3,%) Of the table Pt1 is an expected value obtained using the pitching response function of the wave directional angle ⁇ i and the function of the wave spectrum W j It is.
  • the data P 11 of table Pt1 is determined using a function of pitching response function and the wave spectrum W 1 of the wave direction angle theta 1
  • the data P 12 is pitching response function of wave direction angle theta 1 and wave spectrum obtained by using the function of W 2.
  • the energy spectrum of the hull response in the irregular wave is calculated using the hull response function (for example, the above-mentioned pitching response function) in the regular wave and the function representing the wave spectrum by the known method.
  • Parameters of the response for example, data P ij of the table Pt1 can be determined.
  • the table Pt2 is representative wave height H is allowed to prepare a function of a plurality of wave spectrum H 2, as in the case of table Pt1, the wave direction angle theta i pitching response function and a plurality of wave spectrum It can be obtained using a function.
  • Table Pt3 is representative wave height H is allowed to prepare a function of a plurality of wave spectrum H 3, as in the case of table Pt1, pitching response function and functions of a plurality of wave spectrum wave direction angle theta i It is determined using
  • pitching characteristic data in irregular waves consisting of the above-mentioned tables Pt1 to Pt3 and the like are created for each boat speed and for each draft or drainage amount. Therefore, the pitching characteristic information in the regular wave as shown in FIG. 3A is stored in the storage medium M1 for each boat speed and for each draft or drainage amount.
  • FIG. 3D shows curved surface data created by appropriately performing data interpolation processing on the data of one table Pt1 of FIG. 3C.
  • the data of the other tables Pt2 and Pt3 can be similarly curved surface data.
  • the pitching characteristic data in the irregular wave created in step S11 may be created as table data as shown in FIG. 3 (C), or may be created as curved surface data as shown in FIG. 3 (D).
  • the rolling amplitude and the heving amplitude in the regular wave of the ship 3 As in the case of the pitching amplitude, for the wave period T for each of the wave direction angles ⁇ 1 , ⁇ 2 , ⁇ 3 ,. It has the characteristics shown by a graph such as A) (but not necessarily a chevron graph).
  • the rolling characteristic information and the heving characteristic information in these regular waves are also stored in the storage medium M1 in correspondence with each draft and each amount of draft or displacement.
  • rolling characteristic data and heaving characteristic data in irregular waves are created for each boat speed and for each draft or drainage amount in the same manner as the pitching above. These data may also be created as tabular data or as curved surface data.
  • the resistance increase characteristic information in the regular wave of the ship 3 stored in the storage medium M1 has the wave period for each of the wave direction angles ⁇ 1 , ⁇ 2 , ⁇ 3 ,... As in the case of the pitching amplitude described above. It has a characteristic shown by a graph as shown in FIG. 3A (but not limited to a mountain-shaped graph) with respect to T. Also in this case, in the same manner as in the case of the pitching described above, resistance increase characteristic data in the irregular wave is created for each ship speed and for each draft or displacement amount. This data may also be created as tabular data or as curved surface data.
  • the method of creating motion characteristic data and resistance increase characteristic data in irregular waves in steps S11 and S12 is not limited to the above example, and may be created by CFD (computational fluid dynamics) calculation or the like.
  • the motion characteristic data and the resistance increase characteristic data in the irregular wave created as the curved surface data as described above are respectively functions of the curved surface
  • An increasing characteristic function may be created.
  • the movement characteristic information and the resistance increase characteristic information in the irregular wave may be the movement characteristic data and the resistance increase characteristic data in the irregular wave, or the movement characteristic function and the resistance increase characteristic function in the irregular wave It may be
  • the movement characteristic information in the irregular wave can be created by a known method, and is information that can derive the value of the hull movement in each of a plurality of sea conditions of the ship.
  • the resistance increase characteristic information in the irregular wave can be created by a known method, and is information that can derive the value of the resistance increase in each of the plurality of sea conditions of the ship.
  • the processing device 12 is configured to function as the motion characteristic creation unit 13 which also serves as the motion characteristic holding unit.
  • the motion characteristic creation unit 13 creates motion characteristic information in irregular waves based on motion characteristic information in regular waves of the ship and a wave spectrum assumed in the sea area where the ship may travel.
  • a motion characteristic creation unit (main function unit) and a motion characteristic holding unit for storing motion characteristic information in a given irregular wave created by the main function unit and given from the main function unit in the storage medium M5 are included.
  • the processing device 12 may be configured to function as a motion characteristic holding unit without having the main functional unit of the motion characteristic creating unit 13.
  • the processing device 12 acquires motion characteristic information in the irregular wave created by another device other than the operation support device 1, and stores the motion characteristic information in the given irregular wave in the storage medium M5. It functions as a motion characteristic holding unit to store.
  • the processing device 12 is configured to function as the resistance increase characteristic creation unit 15 which doubles as the resistance increase characteristic holding unit.
  • the resistance increase characteristic creation unit 15 generates resistance increase characteristic information in irregular waves based on resistance increase characteristic information in regular waves of the ship and a wave spectrum assumed in the sea area where the ship may travel.
  • Resistance increase characteristic creation unit (main function unit) that creates the resistance increase characteristic information stored in the random wave given by the main function unit and given from the main function unit is stored in the storage medium M6 And a characteristic holding unit.
  • the processing apparatus 12 may be configured to function as a resistance increase characteristic holding unit without having the main functional unit of the resistance increase characteristic creating unit 15. In this case, the processing device 12 acquires resistance increase characteristic information in the irregular wave created by another device other than the operation support device 1, and stores the resistance increase characteristic information in the given irregular wave as a storage medium. It functions as a resistance increase characteristic holding unit stored in M6.
  • step S21 and step S22 may be reversed.
  • Step S21 is processing when the processing device 12 functions as the motion characteristic changing unit 14.
  • Step S21 based on the sea state data of the voyage measurement data of the ship 3 stored in the storage medium M3 and the values of the hull movement (pitching, rolling and heaving), etc. Change (correct) motion characteristic data in regular waves.
  • This change value may be the pitching value itself of the voyage actual measurement data, or may be an arithmetic mean value of the same pitching value and the change target value (value before change) or a weighted average value to which a predetermined weight is added. .
  • the change value if an arithmetic mean value or a weighted average value is used as the change value, a large change in the values before and after the change can be suppressed.
  • the pitching value of the voyage measurement data is an abnormal value It is possible to reduce the abnormal value of the changed value.
  • the above-described change value is not limited to the arithmetic average value or the weighted average value, and may be a value obtained by smoothing the error between the change target value and the pitching value of the survey actual measurement data.
  • the change process in step S21 in this case is performed using, for example, unused voyage actual measurement data in the same change process in the past, for example, if there are unused voyage actual measurement data for n times, each unused voyage actual measurement data
  • the change value may be calculated using the actually measured voyage data of use and the corresponding change target values (values before change) corresponding thereto.
  • the change value is calculated using all of the voyage actual measurement data acquired so far and the initial change target value (data stored in step S11). It is also good.
  • each of the rolling characteristic data and the heaving characteristic data is also changed to a value based on the rolling value of the voyage actual measurement data and a value based on the heaving value of the voyage actual measurement data in the same manner as the pitching characteristic data described above. .
  • step S22 is processing when the processing device 12 functions as the resistance increase characteristic change unit 16.
  • the actual ever measured during flight time t m (m 1,2,3, ⁇ , n) the value of the resistance increase caused by the waves in the actual operations based on the data related to the hull resistance in Resistance increase characteristics in irregular waves stored in the storage medium M6 based on the value of resistance increase due to waves at the time of actual operation and the sea state data at the same time t m of the voyage actual measurement data Change (correct) the data.
  • the ship resistance (total resistance) at a certain speed and a certain draft or drainage volume is calculated by theoretical calculation, tank test, etc., and the resistance increase due to waves during actual operation, actual resistance during actual operation It is considered as the sum of wind pressure resistance etc.
  • the resistance to flat water may take into consideration the influence of aging contamination.
  • Flat-water resistance is stored in the storage medium M1 as one of individual ship performance data.
  • the wind pressure resistance and the like can be calculated based on the heading or heading of the ship 3, weather data, wind pressure resistance coefficient information, and the like.
  • the hull resistance can be calculated using the main engine output, the boat speed, and the propeller rotational speed.
  • the main engine output can be calculated, for example, based on a predetermined characteristic curve from the fuel consumption per predetermined time. Therefore, the value of resistance increase due to waves during actual operation is data related to ship resistance, that is, data regarding main engine output during actual operation (for example, fuel consumption per predetermined time), ship speed, propeller rotation speed And can be calculated based on the heading or heading, and the like.
  • step S22 on the basis of the data relating to the hull resistance at a certain time t m which is measured at the time of actual operations, it calculates the value of the resistance increase caused by the waves in the actual operating at time t m. Then, among the resistance increase characteristic data in the irregular wave stored in the storage medium M6, the sea state data (wave direction angle, wave period, wave height) at the same time t m of the voyage measurement data, the ship speed, the value of the resistance increase at which a draft or wastewater to match (change target value) is changed to a value (changed value) based on the value of the resistance increase caused by the waves in the actual operating at time t m.
  • This change value may be the value of the increase in resistance due to waves during actual operation, or the arithmetic mean value or predetermined weight of the value of increase in resistance due to waves during actual operation and the change target value (value before change) It may be a weighted average value given.
  • the change value if an arithmetic mean value or a weighted average value is used as the change value, a large change in the value before and after the change can be suppressed.
  • the value of resistance increase due to waves during actual operation is an abnormal value. Can reduce the abnormal value of the changed value.
  • the above-described change value is not limited to the arithmetic average value or the weighted average value, and may be a value obtained by smoothing the error between the change target value and the value of resistance increase due to waves during actual operation.
  • the change process in step S22 in this case is performed using, for example, unused voyage actual measurement data in the same change process in the past, for example, if there are unused voyage actual measurement data for n times, each unused voyage actual measurement data
  • the change value may be calculated using the value of the increase in resistance due to waves during actual operation obtained from the voyage measurement data of use and the corresponding change target values (values before change) corresponding thereto. .
  • the value of the increase in resistance due to waves during actual operation obtained from all survey data acquired so far and the initial change target value (data stored in step S12 ) May be used to calculate the change value.
  • step S21 and S22 The above-described operation of FIG. 2B (steps S21 and S22) is repeated to change many values of motion characteristic data and resistance increase characteristic data in irregular waves stored in storage media M5 and M6. The closer it is to the actual motion characteristics and the resistance increase characteristics.
  • the measurement values measured by the measurement device (part of the measurement system 35) mounted on the ship 3 are used as sea view data at the time of actual operation.
  • the actual value or forecast value (predicted value in the past) obtained from the above may be used.
  • the motion characteristic information and the resistance increase characteristic information in the irregular wave are the motion characteristic function and the resistance increase characteristic function in the irregular wave which is a function of the curved surface, in the steps S21 and S22, the above-mentioned motions The characteristic function and the resistance increase characteristic function will be changed.
  • step S22 the resistance increase characteristic information in the irregular wave may be changed in such a manner that the movement characteristic information in the irregular wave changed in step S21 is reflected.
  • the operation illustrated in FIG. 2C is performed, for example, when the user operates the input device 21 and a vessel designation instruction and an optimal route search instruction are input to the processing device 12.
  • the optimum route search instruction includes a departure place and a destination, and an optimum route selection condition (predetermined condition).
  • the operation shown in FIG. 2 (C) is usually performed before the ship 3 goes on a voyage, but may be performed during the voyage.
  • the order of step S31 and step S32 may be reversed.
  • Step S31 is processing when the processing device 12 functions as the hull motion estimation unit 17.
  • the hull motion caused when the ship 3 navigates each assumed route is estimated.
  • the sea condition forecast is acquired from the external organization 5 together with the weather forecast and stored in the storage medium M2.
  • each of the plurality of assumed routes is a route from the departure place to the destination, and is stored in advance in the storage medium M4.
  • the assumed route is divided into a plurality of sections, and in each section (start point, end point or middle point of the section), oceanographic forecast (wave direction, wave period, The ship motion in each section by selecting from among the motion characteristic data in the storage medium M5 the values of the ship motion corresponding to those conditions based on the wave height), the planned ship speed and the planned draft or displacement amount.
  • the planned boat speed may be the boat speed previously input from the input device 21 or may be the boat speed calculated from the scheduled sailing time.
  • the planned draft or the amount of drainage may be a value previously input from the input device 21 or may be a value calculated from cargo data or the like.
  • step S32 is processing when the processing device 12 functions as the fuel consumption estimation unit 18.
  • the fuel consumption can be estimated more accurately.
  • step S32 for example, in each section (the start point, the end point or the middle point of the section divided as described above) for each assumed route, the sea condition forecast (wave direction, wave period, wave height) in each section; Based on the planned ship speed and the planned draft or displacement, values of the resistance increase due to the conditions and the corresponding waves are selected from the resistance increase characteristic data in the storage medium M6. The value of resistance increase due to the selected wave is used to estimate the hull resistance and the main engine output, and further to estimate the fuel consumption in each section. Then, the fuel consumption amount (total amount) on the assumed route is estimated by totaling the fuel consumption amount in each section. In addition, when estimating ship resistance, when forecasting the wind pressure resistance of ship resistance, a weather forecast is used.
  • step S33 is processing when the processing device 12 functions as the optimum route selection unit 19.
  • one route is selected from among the plurality of assumed routes based on the optimum route selection condition, and the route is determined as the optimum route.
  • This optimal route is displayed on the display device 22.
  • the processing device 12 can transmit the data of the optimum route to the ship 3 by the land side communication device 11, and the display device 34 in the ship 3 can display the optimum route.
  • the user can operate the input device 21 to designate an arbitrary assumed route from among a plurality of assumed routes, and when the assumed route is specified, the processing unit 12 is designated.
  • the ship motion and fuel consumption estimated on the assumed route are displayed on the display unit 22.
  • the hull movement estimation unit 17 performing the steps S31 to S33, the fuel consumption estimation unit 18, and the optimum route selection unit 19 constitute an optimum route search unit 20.
  • the optimum route selection condition for example, it is possible to set the condition that the fuel consumption amount is the smallest among the assumed routes in which the value of the hull movement is equal to or less than a predetermined threshold value in the entire route.
  • the above-mentioned threshold value of the hull movement may be determined for each of pitching, rolling and heving.
  • the processing device 12 performs the operation shown in FIG. 2B. After that, the operation shown in FIG. 2C may be performed subsequently.
  • the movement characteristic data in the irregular wave is calculated on the basis of the movement characteristic information in the regular wave of the given ship which is previously obtained based on the theoretical calculation and the tank test, and the assumed wave spectrum.
  • the motion characteristic data is changed to the value corresponding to the oceanographic data at the time of actual operation in the motion characteristic data to a value based on the value of the hull motion by the wave at the actual operation (step S21).
  • the ship motion on the assumed route is estimated (step S31), so the number of the change points is increased. It becomes possible to improve the estimation accuracy of ship motion.
  • Step S12 resistance increase characteristic information in regular waves of a given ship and based on assumed wave spectrum, resistance increase characteristic data in irregular waves is created (Step S12), the value of the resistance increase characteristic data corresponding to the oceanographic data at the time of actual operation is changed to the value based on the value of the resistance increase due to the wave at the actual operation (step S22). Then, based on the resistance increase characteristic data after the change (hereinafter, also referred to as “changed resistance increase characteristic information”), the fuel consumption in the assumed route is estimated (step S32), so the above change As the number of places increases, it is possible to improve the estimation accuracy of the fuel consumption.
  • step S33 the selection accuracy is also enhanced when selecting the optimum route (step S33). Therefore, the contribution to the reduction of the operation cost and the securing of safety against the load collapse of the load can be expected more.
  • the movement characteristic data and the resistance increase characteristic data in the irregular wave are changed based on the data at the time of actual operation in steps S21 and S22, the movement characteristic data and the resistance increase characteristic data in the irregular wave are changed. Accuracy can be enhanced. Therefore, the required degree of accuracy of the motion characteristic information and the resistance increase characteristic information in the regular wave calculated based on the theoretical calculation and the water tank test can be reduced, and the theoretical calculation and the water tank test can be simplified.
  • the movement characteristics in the initial irregular wave to be initially stored in the storage medium M5, M6 for the ship 3 You may use as information and resistance increase characteristic information.
  • the initial irregularity of the ship 3 is generated based on the movement characteristic information and the resistance increase characteristic information in the irregular wave after the change based on the data at the time of actual operation created for a plurality of other ships. Motion characteristic information and resistance increase characteristic information in waves may be created.
  • the motion characteristic information and the resistance increase characteristic information in irregular waves after the change of other large ships and small ships are averaged to obtain the initial value of the ship 3.
  • Motion characteristic information and resistance increase characteristic information in irregular waves may be created.
  • steps S11 and S12 are performed on each table (see FIG. 3C) prepared as motion characteristic information and resistance increase characteristic information in the initial irregular wave of the ship 3 to be supported.
  • each table after the change is used in the processing of steps S31 and S32. It can also be done.
  • FIG. 2 (B) and FIG. 2 (C) can also be performed by the processing device 12 during the voyage of the ship 3 to be supported. Moreover, when making the processing apparatus 12 perform the operation
  • step S21 the three data of the pitching characteristic data, the rolling characteristic data, and the heaving characteristic data in the irregular wave are changed, but any one of the three data or It may be configured to change two data.
  • Steps S11, S21 and S31 may be performed including those taken into consideration.
  • step S21 and step S22 may be performed.
  • step S21 and step S31 is performed without performing step S22 and step S32, and for example, it is an assumed route in which the value of the hull movement is minimized over the entire route as the optimum route selection condition in step S33.
  • the condition may be
  • step S22 and step S32 is performed without performing step S21 and step S31, and for example, it is assumed that the fuel consumption amount is the smallest in the entire route as the optimum route selection condition in step S33. It may be a condition.
  • given wind pressure resistance coefficient information for example, a table of wind pressure resistance coefficients
  • wind direction, wind speed, heading direction related to the wind measured at the time of actual operation
  • change (correct) the wind pressure resistance coefficient information corresponding to the data Then, the fuel consumption (total amount) in each of the plurality of assumed routes may be estimated based on the wind pressure resistance coefficient information after the change, and the optimum route may be selected based on the fuel consumption.
  • the hull resistance is estimated at the time of estimation (calculation) of the fuel consumption (total amount) in each assumed route, but when the wind pressure resistance of the hull resistance is estimated, it is changed together with the weather forecast etc. Wind pressure resistance is estimated using wind pressure resistance coefficient information.
  • the fuel consumption (total amount) estimated based on the post-change wind pressure resistance coefficient information and the hull motion estimated based on the above-described post-change motion characteristic information The optimal route may be selected.
  • the optimum route may be selected based on the fuel consumption (total amount) estimated based on the wind pressure resistance coefficient information after the change and the resistance increase characteristic information after the change. Good.
  • each of the plurality of assumed routes it is estimated based on the fuel consumption (total amount) estimated based on the changed wind pressure resistance coefficient information and the changed resistance increase characteristic information, and the movement characteristic information after the change.
  • the optimal route may be selected based on the ship motion.
  • the fuel consumption is used as the selection condition of the optimum route
  • the processing device 12 functions as the fuel consumption estimation unit 18 which is an example of the evaluation index estimation unit. It is possible to function as an evaluation index estimation unit that estimates horsepower, ship speed, ship resistance, required time, etc. as an evaluation index, and these may be used as selection conditions for the optimal route. Alternatively, estimations are made based on the increase / decrease in fuel consumption increase rate, horsepower increase rate, ship speed decrease rate, hull resistance increase rate, required time increase rate etc. It may be made to function as an evaluation index estimation unit, and these may be used as selection conditions for the optimum route.
  • FIG. 12 is a diagram for describing the characteristic information of the wave spectrum.
  • the wave spectrum when the representative wave height H is H 1 and the representative wave period is T 1 will be described as an example.
  • a function of a plurality of wave spectra different in at least one of the maximum value Sp of the wave spectrum and the concentration L is prepared in advance.
  • the degree of concentration L indicates the width of the range of the wave period in which the value of the wave spectrum is k ⁇ Sp or more, which is k times the maximum value Sp.
  • k is a predetermined value of 0 ⁇ k ⁇ 1, and may be 0.5, for example.
  • FIGS. 13 (A) to 13 (D) are diagrams showing examples of wave spectrums in which the representative wave height H is H 1 and the representative wave period is T 1 and the characteristic information is different.
  • FIG. 13A and FIG. 13B show wave spectra in which the maximum value Sp1 is the same and the degree of concentration (L1, L2) is different.
  • FIGS. 13C and 13D show wave spectra in which the maximum value Sp2 is the same and the degree of concentration (L3, L4) is different.
  • the wave spectrum of FIG. 13 (A), (B), and the wave spectrum of FIG. 13 (C), (D) differ in maximum value (Sp1, Sp2).
  • FIG. 13 (A) ⁇ FIG 13 (D), with respect to the wave spectrum W 1 1 single in Figure 3 of the aforementioned (B), so that four wave spectrum is prepared.
  • the characteristic information differs for each of the other wave spectrums having the same representative wave height and representative wave cycle (for example, the wave spectrums W 2 and W 3 in FIG. 3B). Wave spectrum will be prepared.
  • motion characteristic data and resistance increase characteristic data in irregular waves are created.
  • data P 11 of the table Pt1 in FIG. 3C is used when the above-mentioned characteristic information is not used. Is determined using the pitching response function of wave direction angle ⁇ 1 and the function of wave spectrum W 1 , but in the example of FIGS. 13A to 13 D, one wave spectrum W 1 is obtained.
  • four wave spectra are prepared, using the pitching response function of wave directional angle ⁇ 1 and the function of each of these four wave spectra, four non-correspondences corresponding to each wave spectrum are obtained. The pitching value in the regular wave is calculated.
  • the wave spectrum may be set more finely by further adding the deviation degree to the above-mentioned maximum value Sp and the concentration degree L.
  • the degree of deviation of the wave spectrum is indicated by, for example, La / Lb, using, for example, La and Lb in FIG.
  • This bias degree (La / Lb), in the range of wave period value of the wave spectrum is k ⁇ Sp or more, a width La in the range of less than the representative wave period T 1, a representative wave period above T 1 in the range of width It is the value of the ratio to Lb.
  • the value (k ⁇ Sp) of the wave spectrum specifying both sides of La and Lb is the same value as the value (k ⁇ Sp) of the wave spectrum specifying the range of concentration L described above, Different values may be used.
  • any one of the maximum value Sp, the degree of concentration L, and the degree of deviation La / Lb may be used as the characteristic information of the wave spectrum.
  • the movement characteristic information and resistance increase characteristic information in irregular waves are oceanographic data (wave direction angle, wave period, wave height) And the speed of the boat and the draft or the amount of drainage as parameters.
  • the movement property information and the resistance increase property information in the irregular wave are the sea state data (wave direction angle, wave period, wave height, wave spectrum property information ), Ship speed, draft or drainage volume as parameters.
  • the movement characteristic data in which all of the parameters match or nearly coincide with the voyage measurement data (or may be substantially the same for the characteristic information of the wave spectrum)
  • the value is changed to a value based on the value
  • the resistance increase characteristic data in which all the parameters match or almost coincide with the voyage measurement data (the characteristic information of the wave spectrum may be substantially identical) Change to a value based on the value of resistance increase due to the wave.
  • the characteristic information of the wave spectrum at the time of actual operation the actual value or forecast value (predicted value in the past) acquired from the external organization 5 may be used as in the other oceanographic data.
  • step S31 for example, based on the forecast of sea condition (wave direction, wave period, wave height, wave spectrum characteristic information), planned ship speed, planned draft or drainage amount in each section of each of a plurality of assumed routes.
  • the ship 3 navigates each assumed route by estimating the value of the ship movement in each section by selecting the values of the ship movement corresponding to those conditions from among the movement characteristic data in the storage medium M5 Estimate ship motion that occurs in
  • step S32 for example, based on the forecast of sea condition (wave direction, wave period, wave height, wave spectrum characteristic information), planned ship speed, planned draft or drainage volume in each section of each of a plurality of assumed routes.
  • the value of the resistance increase due to the wave corresponding to those conditions is selected from the resistance increase characteristic data in the storage medium M6, and the fuel consumption in each section is estimated using the value of the resistance increase due to the selected wave Estimate the fuel consumption (total amount) on each assumed route.
  • the parameters of the movement characteristic information and the resistance increase characteristic information in the irregular wave are limited to the above-mentioned parameters. Instead of the parameters described above, other parameters may be added in addition to the parameters described above, or any parameter may be eliminated.
  • FIG. 14 is a schematic configuration diagram of a system including a ship operation support device of a modification of the present embodiment. Below, in the operation aiding apparatus 1A for ships according to the modification shown in FIG. 14, differences from the operation aiding apparatus 1 shown in FIG. 1 will be mainly described.
  • the operation support device 1A shown in FIG. 14 differs from the operation support device 1 shown in FIG. 1 in the function of the processing device 12 and also includes a storage medium M7 storing motion characteristic conversion information, and motion characteristic conversion information. And a storage medium M8 for storing data.
  • Each of the storage media M1 to M8 may be configured by separate storage devices, or a plurality of storage media may be configured by one storage device.
  • the hull motion estimation unit 17A has a configuration in which the hull motion estimation unit 17 of FIG. 1 has a function of deriving converted motion characteristic information described later.
  • the fuel consumption estimation unit 18A has a configuration in which the fuel consumption estimation unit 18 of FIG. 1 has a function of deriving converted resistance increase characteristic information described later.
  • FIGS. 15A, 15B, and 15C are flowcharts showing an outline of an example of the operation of the operation support device 1A of the modification example. These operations are realized by the processing device 12 of the operation support device 1A executing the operation support program of the ship.
  • Steps S11 and S12 shown in FIG. 15 (A) are the same operations as steps S11 and S12 shown in FIG. 2 (A).
  • the movement characteristic data in the irregular wave is stored in the storage medium M5
  • the resistance increase characteristic data in the irregular wave is stored in the storage medium M6.
  • step S21A and step S22A may be reversed.
  • Step S21A is processing when the processing device 12 functions as the motion characteristic conversion information creation unit 14A, which creates motion characteristic conversion information and stores it in the storage medium M7.
  • Step S22A is processing when the processing device 12 functions as the resistance increase characteristic conversion information creation unit 16A, and creates resistance increase characteristic conversion information and stores it in the storage medium M8.
  • the operation illustrated in FIG. 15C is performed, for example, when the user operates the input device 21 and a vessel designation instruction and an optimal route search instruction are input to the processing device 12.
  • the optimum route search instruction includes a departure place and a destination, and an optimum route selection condition (predetermined condition).
  • the operation shown in FIG. 15 (C) is usually performed before the ship 3 goes on a voyage.
  • the order of step S31A and step S32A may be reversed.
  • Step S31A is processing when the processing device 12 functions as the hull motion estimation unit 17A.
  • information converted motion characteristic information obtained by converting the motion characteristic data stored in the storage medium M5 on the basis of the motion characteristic conversion information stored in the storage medium M7 is derived, and this converted Based on the movement characteristic information and the sea condition forecast on each of a plurality of assumed routes, the hull motion caused when the ship 3 navigates on each assumed route is estimated.
  • the ship movement can be estimated more accurately.
  • the converted exercise characteristic information described above corresponds to the “Modified exercise characteristic information” in the case of the operation support device 1 shown in FIG. 1. Therefore, the hull motion estimation unit 17A only has a function of deriving the converted motion characteristic information from the hull motion estimation unit 17 shown in FIG.
  • the movement characteristic conversion information is movement characteristic information (movement characteristic data) stored in the storage medium M5 based on the value of the hull movement measured at the time of actual operation of the ship 3 and the oceanographic data at the time of actual operation.
  • the information to convert the value of the ship motion (conversion target value) under the sea condition condition and the corresponding sea condition condition based on the ship operation to the value based on the ship movement value during the operation (conversion value) is there.
  • the conversion value may be the ship movement value itself of the voyage measurement data, or the voyage measurement value such as an arithmetic mean value of the ship movement value of the voyage measurement data and the conversion target value or a weighted average value given a predetermined weight.
  • the error between the value of the hull movement of the data and the value to be converted may be a smoothed value.
  • the conversion value is the value of the hull movement of the voyage measurement data
  • the value of the hull movement of the voyage measurement data is stored in the storage medium M7 as the movement characteristic conversion information (step S21A)
  • the conversion target value may be replaced with a conversion value to derive converted motion characteristic information.
  • the ship movement value of the voyage measurement data is stored in the storage medium M7 in step S21A.
  • the motion characteristic conversion information may be stored and the converted value (smoothed value) may be calculated in step S31A to derive converted motion characteristic information.
  • the difference between the value subjected to the smoothing processing in step S21A and the value to be converted is calculated and stored in the storage medium M7 as motion characteristic conversion information, and the difference is added to the value to be converted in step S31A ( Alternatively, the converted value may be calculated by subtraction and the converted motion characteristic information may be derived.
  • Step S32A is processing when the processing device 12 functions as the fuel consumption estimation unit 18A.
  • information converted resistance increase characteristic information obtained by converting the resistance increase characteristic data stored in the storage medium M6 based on the resistance increase characteristic conversion information stored in the storage medium M8 is derived, Based on the converted resistance increase characteristic information and the sea condition forecast on each of a plurality of assumed routes, the fuel consumption (total amount) generated when the vessel 3 travels on each assumed route is estimated.
  • the fuel consumption can be estimated more accurately.
  • the converted resistance increase characteristic information described above corresponds to the “changed resistance increase characteristic information” in the case of the operation support device 1 shown in FIG. Therefore, the fuel consumption estimation unit 18A only has the function of deriving the converted resistance increase characteristic information to the fuel consumption estimation unit 18 shown in FIG.
  • the resistance increase characteristic conversion information is the resistance increase characteristic information (resistance increase stored in the storage medium M6 based on the value of the resistance increase due to the wave at the actual operation of the ship 3 and the oceanographic data at the actual operation.
  • the value of the increase in resistance due to waves under the actual conditions (conversion value) based on the characteristic data) and the corresponding value for the increase in resistance due to waves during actual operation (conversion value) It is information to convert into.
  • the conversion value may be the value of resistance increase due to waves during actual operation, or an arithmetic mean value of the value of resistance increase due to waves during actual operation and the conversion target value or a weighted average value given a predetermined weight
  • the difference between the value of resistance increase due to waves during actual operation and the value to be converted may be a smoothed value.
  • the converted value is the value of resistance increase due to waves in actual operation
  • the value of resistance increase due to waves in actual operation is stored in storage medium M8 as resistance increase characteristic conversion information.
  • the conversion target value may be replaced with the conversion value to derive converted resistance increase characteristic information in step S32A.
  • the value of resistance increase due to waves during actual operation is set in step S22A.
  • the resistance increase characteristic conversion information may be stored in the storage medium M8, and the converted value (smoothed value) may be calculated in step S32A to derive the converted resistance increase characteristic information.
  • the difference between the value subjected to the smoothing process in the step S22A and the value to be converted is calculated and stored in the storage medium M8 as resistance increase characteristic conversion information, and the difference is added to the value to be converted in step S32A.
  • the converted value may be calculated (or subtracted) to derive converted resistance increase characteristic information.
  • step S21A and S22A it is possible to change variously like the above-mentioned operation assistance apparatus 1.
  • FIG. only one of the processes in steps S21A and S22A may be performed.
  • the processing of step S21A and step S31A is performed without performing step S22A and step S32A, and for example, it is an assumed route in which the value of the hull movement is minimum over the entire route as the optimum route selection condition in step S33A.
  • the condition may be Also, without performing step S21A and step S31A, the processing of step S22A and step S32A is performed, and for example, it is assumed that the fuel consumption amount is the smallest in the entire route as the optimum route selection condition in step S33A. It may be a condition.
  • step S21 and step S31 of FIG. 2, and step S22 A of FIG. 15, and step S32 A as the operation assistance apparatus of another example. Further, step S22 and step S32 of FIG. 2 and step S21A and step S31A of FIG. 15 may be performed.
  • the resistance increase characteristic information after the change is subjected to fouling (ageing influence) analysis, for example, a ship speed reduction rate (or a ship speed decrease amount or a ship speed decrease coefficient that makes the ship speed decrease amount non-dimensional), a horsepower increase rate Used to calculate (or the increase in horsepower or the increase in horsepower without dimension), the hull resistance increase rate (or the increase in hull resistance, or the hull resistance increase coefficient with no increase in hull resistance increase)
  • fouling influence for example, a ship speed reduction rate (or a ship speed decrease amount or a ship speed decrease coefficient that makes the ship speed decrease amount non-dimensional)
  • a horsepower increase rate Used to calculate or the increase in horsepower or the increase in horsepower without dimension
  • the hull resistance increase rate or the increase in hull resistance, or the hull resistance increase coefficient with no increase in hull resistance increase
  • the calculation accuracy of the contamination analysis can be improved by using the resistance increase characteristic information after the change and the wind pressure resistance coefficient information after the change for the contamination analysis.
  • the calculation accuracy can be improved by using the resistance increase characteristic
  • FIG. 4 is a graph showing a reference speed horsepower curve used to explain the method of calculating the ship speed decrease rate.
  • the horizontal axis V indicates the ship speed
  • the vertical axis P indicates the main engine output (horsepower)
  • the reference speed horsepower curve C is indicated by a solid line.
  • the reference speed horsepower curve C shows the relationship between the design ship speed and the main engine output.
  • a in FIG. 4 is a measurement point indicated by the corrected main aircraft output P1 and the ship speed V1.
  • the boat speed reduction rate Rv is calculated, for example, by the following formula.
  • V1 is the ship speed (corrected ship speed) obtained by correcting the current ship speed (ground ship speed V0)
  • Vs1 is a reference ship speed on the reference speed horsepower curve C corresponding to the main engine output (corrected main aircraft output) P1 in which the current main engine output (P0) is corrected.
  • the ship speed decrease rate Rv calculated by the above equation is indicated as a negative percentage that makes zero when the corrected ship speed V1 is the reference ship speed Vs1, but is not limited thereto. Further, the ship speed reduction rate Rv may be a numerical value between 0 and 1 calculated by the following calculation formula.
  • Rv V1 / Vs1 Further, the ship speed reduction amount is calculated, for example, by V1-Vs1.
  • the operation support apparatus 1 calculates the ship speed decrease rate of the ship 3
  • the processing apparatus 32 of the ship 3 calculates the ship speed decrease rate of the ship 3 You may do it.
  • all the information necessary to calculate the ship speed reduction rate is stored in the storage device 33.
  • the resistance increase characteristic information after the change and the information of the reference speed-horsepower curve C are transmitted from the operation support device 1 to the ship 3 and stored in the storage device 33.
  • data relating to main aircraft output such as ship speed, main horsepower, fuel consumption, etc. from the ship 3, actual oceanographic and weather data (wind information, wave information) And including tidal current information).
  • the above-mentioned ship speed includes the ground ship speed and the water ship speed, and these may be measured ship speeds or may be calculated from measured values.
  • the information of the reference speed horsepower curve C is stored in advance, for example, in the storage medium M1.
  • the processing device 12 corrects the actual main engine output P0 and / or the ship speed (ground ship speed) V0 based on at least one of wind information (wind direction, wind speed), wave information, and tidal current information.
  • main engine output P0 is corrected based on wind information and wave information
  • ship speed V0 is corrected based on tidal current information.
  • the processing apparatus 12 responds to the degree to the actual ship
  • the corrected ship speed V1 is corrected to be slower than the speed V0.
  • the processing apparatus 12 makes the corrected ship speed V1 faster than the actual ship speed V0 according to the degree of the change.
  • the ship speed V0 is set to the ground ship speed, but in the case of the water ship speed, correction of the ship speed based on the tidal current information is not necessary. That is, the speed of the vessel against water may be set to the speed V1.
  • the processing device 12 is to that extent Accordingly, as shown by an arrow A in FIG. 4, correction is performed such that the corrected main machine output P1 becomes larger than the actual main machine output P0. Conversely, when the wind and waves act on the ship 3 so as to slow the speed of the ship, the processor 12 responds to the degree to the actual main engine, as shown by the arrow B in FIG. The correction is made so that the correction main unit output P1 becomes smaller than the output P0.
  • the value of resistance increase due to wave is calculated based on the resistance increase characteristic information after the above change. Then, the wind pressure resistance is calculated based on the changed wind pressure resistance coefficient information, the ship resistance is calculated using these, and the main engine output P1 corrected using the ship resistance and the ship speed V1 is calculated.
  • the processing device 12 calculates the ship speed reduction rate Rv from the above-mentioned calculation formula using the reference ship speed Vs1 corresponding to the corrected main aircraft output P1 on the reference speed horsepower curve C and the corrected ship speed V1.
  • the reference speed is further changed according to the change in draft or displacement.
  • the horsepower curve C may be corrected, for example, as curves C1 and C2 in FIG.
  • the processing apparatus 12 expands the reference speed / power curve C in the direction in which the ship speed becomes faster as indicated by the curve C1 according to the difference between them. Make corrections as Conversely, if the actual displacement or draft is larger than the reference displacement or draft, the processing device 12 causes the reference speed horsepower curve C to be slowed as indicated by the curve C2 according to the difference between them. Correct to be reduced.
  • the processor 12 sets the ship speed corresponding to the corrected main aircraft output P1 on the corrected speed / horsepower curve (C1 or C2 etc.) as Vs1 in the above-mentioned calculation formula, and this ship speed Vs1 and the corrected ship speed V1. And the ship speed decrease rate Rv is calculated. This makes it possible to calculate the ship speed decrease rate Rv more accurately.
  • the corrected main machine output P1 may be further corrected.
  • the processing device 12 corrects the corrected main machine output P1 to be large according to the difference between them, and conversely, the actual drainage or draft is If the amount is larger than the reference drainage amount or the draft, the processing device 12 may correct the correction main machine output P1 to be smaller according to the difference between them. Also in this case, it is possible to calculate the ship speed decrease rate Rv more accurately.
  • the calculation accuracy is improved by using the resistance increase characteristic information after the change and the wind pressure resistance coefficient information after the change. can do.
  • FIG. 5 is a graph showing a reference speed horsepower curve used to explain the method of calculating the horsepower increase rate.
  • the horizontal axis V indicates the boat speed
  • the vertical axis P indicates the main engine output (horsepower).
  • the reference speed horsepower curve C, the corrected main engine output P1, and the ship speed V1 are the same as in FIG. Ps1 is a reference main engine output on a reference speed horsepower curve C corresponding to the boat speed V1.
  • the horsepower increase rate Rp is calculated, for example, by the following formula.
  • Rp (P1-Ps1) / Ps1 ⁇ 100 Further, the amount of increase in horsepower is calculated by P1-Ps1.
  • FIG. 6 is a graph showing a reference speed force resistance curve used to explain the method of calculating the hull resistance increase rate.
  • the horizontal axis V indicates the boat speed
  • the vertical axis R indicates the hull resistance.
  • the boat speed V1 is the same as in FIG.
  • the reference speed resistance curve Cr is obtained from the reference speed horsepower curve C based on, for example, a relational expression between the main engine output P and the hull resistance R.
  • b in FIG. 6 is a measurement point shown by ship resistance R1 and ship speed V1.
  • V the boat speed
  • ⁇ the propulsion efficiency
  • the propulsion efficiency ⁇ is individual ship performance data and is a predetermined value.
  • the hull resistance R1 at the boat speed V1 is calculated, for example, by the following equation using the corrected main aircraft output P1.
  • R1 P1 ⁇ ⁇ / V1
  • Rs1 is a reference ship body resistance on a reference speed force resistance curve Cr corresponding to the ship speed V1.
  • the hull resistance increase rate Rr is calculated, for example, by the following formula.
  • Rr (R1-Rs1) / Rs1 ⁇ 100 Further, the hull resistance increase amount is calculated by R1-Rs1.
  • FIG. 7 is a diagram for explaining the normalization of the ship speed reduction rate.
  • the same components as those in FIG. 4 are denoted by the same reference numerals, and the description thereof will be omitted.
  • a curve Csv is created by moving the reference speed horsepower curve C in the vertical direction (vertical axis direction) and moving it on the measurement point a. Then, on the curve Csv, a ship speed corresponding to a predetermined reference main engine output Pb determined in advance is V1 ', and on the reference speed horsepower curve C, a ship speed corresponding to the reference main engine output Pb is Vs1'.
  • the normalized ship speed reduction amount can also be calculated using V1 'and Vs1'.
  • FIG. 8 is a diagram for describing normalization of the horsepower increase rate.
  • the same parts as those in FIG. 8 are identical parts as those in FIG. 8.
  • the horsepower increase rate corresponding to any predetermined reference ship speed Vb1 is calculated. can do.
  • the normalized horsepower increase can also be calculated using P1 'and Ps1'.
  • FIG. 9 is a figure for demonstrating normalization of a hull resistance increase rate.
  • the same parts as those in FIG. 9 are identical parts as those in FIG. 9, the same parts as those in FIG. 9, the same parts as those in FIG. 9, the same parts as those in FIG. 9, the same parts as those in FIG. 9, the same parts as those in FIG. 9, the same parts as those in FIG. 9, the same parts as those in FIG. 9, the same parts as those in FIG.
  • a reference speed force resistance curve Cr is moved in the left-right direction (horizontal axis direction) to create a curve Cre moved on the measurement point b. Then, on the curve Cre, a hull resistance corresponding to an arbitrary predetermined reference boat speed Vb2 is R1 ', and on the reference speed resistance curve Cr, a hull resistance corresponding to the reference boat speed Vb2 is Rs1'.
  • the normalized hull resistance increase can also be calculated using R1 'and Rs1'.
  • FIG. 10 is a diagram for explaining a method of creating a performance speed horsepower curve.
  • parts corresponding to those in FIG. 4 are assigned the same reference numerals and descriptions thereof will be omitted.
  • a large number of black points are measurement points created in the same manner as the measurement point a corresponding to the corrected main engine output P1 and the boat speed V1. That is, a large number of measurement points are created corresponding to a large number of different measurement points from the past to the present. For example, a large number of measurement points are created using measured data measured at predetermined time intervals. Further, approximate curves of these many measurement points may be created by a predetermined method, and the approximate curves may be used as the actual speed horsepower curve C10.
  • the human compares the actual speed horsepower curve C10 or the plot with the reference speed horsepower curve C, etc. It will be possible to make an evaluation.
  • the comparison and evaluation may be performed by the processor 12.
  • FIG. 11 is a figure for demonstrating the method to obtain
  • the relationship between the actual speed horsepower curve C10 or the reference speed horsepower curve C created in FIG. 10 is used.
  • sea weather we assume sea weather.
  • the relationship between ship speed and horsepower is determined in each assumed sea weather condition using the resistance increase characteristic information after the above change and the wind pressure resistance coefficient after the change, and a speed horsepower curve is obtained.
  • the speed horsepower curves thus obtained are displayed on the display device 22, for example, BF1 to BF3, the reference speed horsepower curve C, and the actual speed horsepower curve C10 (not shown in FIG. 11).
  • the ship speed of each speed-horsepower curve at a certain main engine output P is obtained, the ship speed in each sea weather can be compared.
  • the main engine output of each speed horsepower curve at a certain ship speed V is determined, the main engine output in each sea weather can be compared.
  • evaluation of ship performance in the assumed sea weather can be performed by calculating the ship speed decrease rate, the horsepower increase rate, the ship resistance increase rate, etc. as described above using BF1 to BF3 for the obtained speed-horsepower curves. It will be possible.
  • the ship speed decrease rate, the horsepower increase rate, and the ship body resistance increase rate obtained as shown in FIG. 4 to FIG. 9 are plotted in chronological order corresponding to a number of different measurement points, Impact) Trends may be assessed. Also, an approximate curve may be created.
  • calculation accuracy can be improved by performing each operation using resistance increase characteristic information after the above-mentioned change. Further, in the above example, since the wind pressure resistance coefficient information after the change is used in addition to the resistance increase characteristic information after the change, the calculation accuracy can be further improved.
  • the processing device 12 of the operation support device 1 has the functions of the following first and second ship performance analysis devices.
  • the first vessel performance analysis system A resistance increase characteristic holding unit for storing resistance increase characteristic information in irregular waves in a resistance increase characteristic storage medium capable of deriving values of wave resistance increase in each of a plurality of sea conditions of the ship;
  • the value of resistance increase due to waves during actual operation is calculated based on the data related to the hull resistance measured during actual operation of the ship, and the value corresponds to oceanographic data during actual operation based on the resistance increase characteristic information
  • a resistance increase characteristic change unit that changes the resistance increase characteristic information such that the value of the resistance increase due to waves under sea conditions becomes a value based on the value of the resistance increase due to waves during actual operation;
  • a calculation unit that calculates at least one of an increase rate and a hull resistance increase rate.
  • the operation unit is The ship speed reduction rate is corrected based on the corrected main engine output and the ship speed corrected by correcting the main engine output of the ship measured at the measurement time based on the resistance increase characteristic information after the change. At least one of the horsepower increase rate and the hull resistance increase rate may be calculated.
  • the second ship performance analysis system A resistance increase characteristic holding unit for storing resistance increase characteristic information in irregular waves in a resistance increase characteristic storage medium capable of deriving values of wave resistance increase in each of a plurality of sea conditions of the ship;
  • the value of resistance increase due to waves during actual operation is calculated based on the data related to the hull resistance measured during actual operation of the ship, and the value corresponds to oceanographic data during actual operation based on the resistance increase characteristic information
  • a resistance increase characteristic change unit that changes the resistance increase characteristic information such that the value of the resistance increase due to waves under sea conditions becomes a value based on the value of the resistance increase due to waves during actual operation;
  • the main engine output of the ship measured at each of a plurality of measurement times during actual operation of the ship is corrected based on the resistance increase characteristic information after being changed by the resistance increase characteristic changing unit
  • a computing unit that creates speed-hp-power curve data based on the output and the speed of the ship at each of the measurement points.
  • the processing device 12 of the operation support device 1 executes the following first and second ship performance analysis programs in order to function as the first and second ship performance analysis devices as described above.
  • the first vessel performance analysis program is On the computer
  • the value of resistance increase due to waves during actual operation is calculated based on the data related to the hull resistance measured during actual operation of the ship, and the value corresponds to oceanographic data during actual operation based on the resistance increase characteristic information
  • a resistance increase characteristic change function of changing the resistance increase characteristic information so that the value of the resistance increase due to waves under sea conditions becomes a value based on the value of the resistance increase due to waves during actual operation;
  • It is a program for realizing an arithmetic function which calculates at least one of an increase rate and a hull resistance increase rate.
  • the arithmetic function is The ship speed reduction rate is corrected based on the corrected main engine output and the ship speed corrected by correcting the main engine output of the ship measured at the measurement time based on the resistance increase characteristic information after the change. At least one of the horsepower increase rate and the hull resistance increase rate may be calculated.
  • the second ship performance analysis program is On the computer
  • the value of resistance increase due to waves during actual operation is calculated based on the data related to the hull resistance measured during actual operation of the ship, and the value corresponds to oceanographic data during actual operation based on the resistance increase characteristic information
  • the main engine output of the ship measured at each of a plurality of measurement time points at the time of actual operation of the ship is corrected based on the resistance increase characteristic information after being changed by the resistance increase characteristic changing function and corrected. It is a program for realizing the operation function which creates speed horsepower curve data based on an output and the speed of the vessel at each measurement time.
  • the operation support device 1A shown in FIG. 14 as in the operation support device 1 shown in FIG. 1 it may be configured to function as a ship performance analysis device, and similar effects can be obtained.
  • “converted resistance increase characteristic information” instead of the “resistance increase characteristic information after change” of the operation support device 1, “converted resistance increase characteristic information” corresponding to this may be used.
  • the processing device 12 of the operation support device 1A has the function of the following third and fourth ship performance analysis devices.
  • the third vessel performance analysis system A resistance increase characteristic holding unit for storing resistance increase characteristic information in irregular waves in a resistance increase characteristic storage medium capable of deriving values of wave resistance increase in each of a plurality of sea conditions of the ship;
  • the value of resistance increase due to waves during actual operation is calculated based on the data related to the hull resistance measured during actual operation of the ship, and the value corresponds to oceanographic data during actual operation based on the resistance increase characteristic information
  • resistance increase characteristic conversion information is created to convert the value of the resistance increase due to waves under sea conditions to a value based on the value of the resistance increase due to waves during actual operation.
  • Resistance increase characteristic conversion information creation unit to store; Information obtained by converting the resistance increase characteristic information based on the resistance increase characteristic conversion information is derived, and based on the converted information and the speed of the ship at a certain measurement time during actual operation of the ship, And a calculation unit that calculates at least one of a ship speed decrease rate, a horsepower increase rate, and a ship body resistance increase rate at a measurement time.
  • the operation unit is The main engine output of the ship measured at the measurement time is corrected based on the converted information, and the ship speed decrease rate, the horsepower increase rate, and the hull resistance increase are based on the corrected main engine output and the ship speed. At least one of the rates may be calculated.
  • the fourth vessel performance analysis system A resistance increase characteristic holding unit for storing resistance increase characteristic information in irregular waves in a resistance increase characteristic storage medium capable of deriving values of wave resistance increase in each of a plurality of sea conditions of the ship;
  • the value of resistance increase due to waves during actual operation is calculated based on the data related to the hull resistance measured during actual operation of the ship, and the value corresponds to oceanographic data during actual operation based on the resistance increase characteristic information
  • resistance increase characteristic conversion information is created to convert the value of the resistance increase due to waves under sea conditions to a value based on the value of the resistance increase due to waves during actual operation.
  • Resistance increase characteristic conversion information creation unit to store; Information obtained by converting the resistance increase characteristic information based on the resistance increase characteristic conversion information is derived, and the main engine output of the ship measured at each of a plurality of measurement points in actual operation of the ship is converted into the converted information. And an arithmetic operation unit that generates speed-hp-power-curve data based on the main engine output corrected based on the correction and the ship speed of the ship at each measurement time.
  • the processing device 12 of the operation support device 1A executes the third and fourth ship performance analysis programs in order to function as the third and fourth ship performance analysis devices as described above.
  • the third and fourth ship performance analysis programs are the “resistance increase characteristic holding unit”, the “resistance increase characteristic conversion information creation unit”, and the “calculation unit” in the description of the third and fourth ship performance analysis devices described above.
  • the program may be described as a program for realizing these functions by replacing “A” with “resistance increase characteristic holding function”, “resistance increase characteristic conversion information creation function”, and “calculation function”. it can.
  • the processing device 12 of the operation support device 1 or 1A exemplified in the present embodiment described above creates and stores motion characteristic information in irregular waves, and the motion characteristic creation unit 13 also serving as a motion characteristic holding unit Although it is configured to function as the motion characteristic creation unit 13, the motion characteristic information in a given irregular wave is stored as a storage medium M5 without having a function to create the motion characteristic information in the irregular wave. It may be configured to function as a motion characteristic holding unit to be stored.
  • the processing device 12 of the operation support device 1 or 1A illustrated in the present embodiment creates and stores resistance increase characteristic information in irregular waves, and serves as a resistance increase characteristic creation unit 15 which doubles as a resistance increase characteristic holding unit.
  • the resistance increase characteristic creation unit 15 stores the resistance increase characteristic information in a given irregular wave without having a function of creating the resistance increase characteristic information in the irregular wave. It may be configured to function as a resistance increase characteristic holding unit to be stored in the medium M6.
  • the operation support apparatus 1 1A is provided as a land facility, but an apparatus that performs all or a part of the operation support apparatus 1 1A may be provided in the ship 3.
  • the present invention is useful as an operation support device and an operation support program of a ship capable of improving the estimation accuracy of an evaluation index (for example, fuel consumption) and / or a hull motion index on a supposed route.
  • an evaluation index for example, fuel consumption

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Abstract

L'invention concerne un appareil et un programme d'aide à l'exploitation des navires qui sont capables d'améliorer la précision d'estimation d'un indice de mouvement de coque et/ou d'un indice d'évaluation dans un itinéraire supposé. Un appareil d'aide à l'exploitation des navires donné à titre d'exemple selon la présente invention comprend: une unité de stockage de caractéristiques d'augmentation de résistance qui stocke, dans un support de stockage (M6), des informations de caractéristiques d'augmentation de résistance dans des ondes irrégulières, ce qui permet de déduire la valeur d'une augmentation de résistance provoquée par des ondes dans des conditions hydrographiques de navire respectives; une unité de changement de caractéristiques d'augmentation de résistance (16) qui calcule la valeur d'une augmentation de résistance provoquée par des ondes pendant une opération réelle sur la base de données relatives à la résistance de la coque mesurées pendant une opération réelle d'un navire, et change les informations de caractéristiques d'augmentation de résistance de telle sorte que la valeur d'une augmentation de résistance, provoquée par des ondes dans une condition hydrographique correspondant à des données hydrographiques du temps de fonctionnement réel sur la base des informations de caractéristiques d'augmentation de résistance, devient égale à la valeur de l'augmentation de résistance provoquée par les ondes pendant l'opération réelle; et une unité d'estimation d'indice d'évaluation qui estime un indice d'évaluation pour un itinéraire supposé sur lequel le navire navigue, sur la base d'une prévision hydrographique sur l'itinéraire supposé et des informations caractéristiques d'augmentation de résistance qui ont été modifiées par l'unité de changement de caractéristiques d'augmentation de résistance (16).
PCT/JP2018/024611 2017-06-30 2018-06-28 Appareil et programme d'aide à l'exploitation des navires WO2019004362A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7397472B2 (ja) 2019-12-27 2023-12-13 国立研究開発法人 海上・港湾・航空技術研究所 船舶性能評価・提供システム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012086604A (ja) * 2010-10-18 2012-05-10 Universal Shipbuilding Corp 船舶運航支援システム
JP2013107488A (ja) * 2011-11-21 2013-06-06 Japan Marine United Corp 運航支援装置及び船

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012086604A (ja) * 2010-10-18 2012-05-10 Universal Shipbuilding Corp 船舶運航支援システム
JP2013107488A (ja) * 2011-11-21 2013-06-06 Japan Marine United Corp 運航支援装置及び船

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7397472B2 (ja) 2019-12-27 2023-12-13 国立研究開発法人 海上・港湾・航空技術研究所 船舶性能評価・提供システム

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