CN116356787A - Ship lock floating type bollard device, monitoring device and monitoring method - Google Patents

Ship lock floating type bollard device, monitoring device and monitoring method Download PDF

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Publication number
CN116356787A
CN116356787A CN202310232642.3A CN202310232642A CN116356787A CN 116356787 A CN116356787 A CN 116356787A CN 202310232642 A CN202310232642 A CN 202310232642A CN 116356787 A CN116356787 A CN 116356787A
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China
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floating
cable
water level
dolphin
triangular prism
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潘昊
吴弢
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Wuhan Pfl Electric Coo Ltd
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Wuhan Pfl Electric Coo Ltd
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Priority to CN202310232642.3A priority Critical patent/CN116356787A/en
Publication of CN116356787A publication Critical patent/CN116356787A/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02C—SHIP-LIFTING DEVICES OR MECHANISMS
    • E02C1/00—Locks or dry-docks; Shaft locks, i.e. locks of which one front side is formed by a solid wall with an opening in the lower part through which the ships pass
    • E02C1/10—Equipment for use in connection with the navigation of ships in locks; Mooring equipment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers

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  • Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The application discloses a ship lock floating dolphin device, monitoring devices and monitoring methods relates to the ship lock monitoring technology field, includes: two stand columns arranged at intervals; a floating triangular prism body comprising a middle prism and two side prisms, wherein the bottom ends of the middle prism and the two side prisms are intersected with a lower-layer cable pillar; the left foot and the right foot of the connecting top plate can slide between the two upright posts; the floating bearing platform is fixed at the bottom of the floating triangular prism and can be arranged between the two upright posts in a sliding manner; the cable winding and unwinding device is used for winding and unwinding cables in real time along with the floating triangular prism and the floating bearing platform which float up and down. The application also discloses a monitoring device comprising the floating dolphin device and a monitoring method adopting the monitoring device.

Description

Ship lock floating type bollard device, monitoring device and monitoring method
Technical Field
The application relates to the technical field of ship lock monitoring, in particular to a ship lock floating type bollard device, a monitoring device and a monitoring method.
Background
At present, a mode of a ship lock floating type mooring post is mainly adopted for large-scale ship berthing, and the mode utilizes buoyancy to enable mooring facilities to float up and down along with water level change so as to meet the safety mooring of ships. In the using process of the ship lock, due to the reasons of berthing tonnage lifting, ship overrun berthing, irregular berthing and the like, cable breakage accidents can be caused when the cable force exceeds the tensile strength of the cable. In addition, even if the mooring line is able to withstand, the resultant effect of excessive mooring forces can lead to failure of the dolphin structure when the dolphin design is more resistant to bending and shear. Once the mooring force combined action effect exceeds the design value of the mooring post, serious consequences such as the rupture of the mooring post, the uncontrolled drifting of the ship and the damage of the ship lock structure can be brought, and even secondary disasters such as the collision of the ship with the gate structure can be caused. For this reason, the structural mechanical properties of the dolphin under complex mooring conditions are a major safety issue that needs to be addressed during the operation of the ship lock.
In the related technology, academic paper is a research overview of a ship lock floating type dolphin on-line monitoring and early warning system, under the discussion of the twenty-first Chinese ocean engineering academy, a complete set of technology taking the floating type dolphin as a monitoring main object is researched and developed by means of a large ship lock engineering project aiming at the safety problem existing in the service process of the floating type dolphin, and an on-line monitoring and early warning system of the floating type dolphin is integrated, so that the on-line monitoring of the real-time loading condition of the floating type dolphin and the safety early warning of the running state are realized.
Academic paper II, "research on mooring force inversion mechanism and optical fiber monitoring method of a dolphin structure", chongqing traffic university 2020 Shuoshi, a five-point strain measurement scheme of the root of the dolphin is provided according to the stress characteristics and the field operation characteristics of the dolphin, and a dolphin structure stress state monitoring method based on the optical fiber grating sensing technology is designed and optimized. Aiming at the number of the dolphins and the wharf structural characteristics, a networking mode of the optical fiber strain sensors and an arrangement mode of optical fiber links are provided, and a dolphin cluster monitoring system integrating data acquisition, analysis, storage and early warning is constructed.
However, in the online monitoring and early warning system in the paper I, the former wired and centralized strain data acquisition mode is replaced by a wireless mode, when the wireless mode needs to work for years and months in practice, the battery cannot meet the requirements, wired connection such as equipment power supply cannot be avoided, part of cables connected in a wired manner are not effectively managed in the process of sinking and floating along with the floating dolphin, and the part of cables are subjected to sun and rain for a long time and even immersed in water. The monitoring method in the second paper does not solve the calibration problem involved in the application of the grating strain measurement mode in the floating dolphin, although the grating measurement mode is adopted.
Disclosure of Invention
Aiming at the defects in the prior art, the purpose of the application is to provide a ship lock floating type bollard device, a monitoring device and a monitoring method, and a reliable calibration method is provided, so that the mooring force can be accurately monitored in real time, and the leakage cable can be effectively managed.
In order to achieve the above purpose, the technical scheme adopted is as follows: a lock floating dolphin apparatus comprising: two stand columns arranged at intervals;
the floating triangular prism comprises a middle prism and two side prisms, wherein the bottom ends of the middle prism and the two side prisms are intersected with the lower-layer cable studs, the top ends of the middle prism are provided with upper-layer cable studs, the top ends of the two side prisms are provided with connecting top plates, and the upper-layer cable studs penetrate through the connecting top plates; the left foot and the right foot of the connecting top plate can slide between the two upright posts;
the floating bearing platform is fixed at the bottom of the floating triangular prism and can be arranged between the two upright posts in a sliding manner;
the cable winding and unwinding device is used for winding and unwinding cables in real time along with the floating triangular prism and the floating bearing platform which float up and down.
On the basis of the technical scheme, the cable winding and unwinding device comprises:
two fixed bases arranged at intervals;
the fixed shaft horizontally spans between the two fixed bases;
the cable winding drum is arranged right above the floating triangular prism and can be rotatably sleeved on the fixed shaft, and the cable winding drum is used for winding and unwinding cables along with rising or falling of the water level; the bottom end of the cable is connected with all the electric equipment on the floating triangular prism.
On the basis of the technical scheme, the floating dolphin device also comprises an electrodeless speed regulation motor; the stepless speed regulating motor drives the cable drum to rotate forward or reversely according to the water level change, and the cable is wound and unwound in real time.
On the basis of the technical scheme, the floating dolphin device further comprises a communication power supply device, wherein the communication power supply device is fixedly sleeved on the fixed shaft and is close to the cable drum;
a left slip ring is arranged on one side of the cable drum, a right slip ring is arranged on one side of the communication power supply device, and the left slip ring and the right slip ring are adjacently arranged;
a plurality of concentric copper ring sheets are arranged on one side end surface of the left slip ring, which faces the right slip ring, and a plurality of spring contacts are arranged on one side end surface of the right slip ring, which faces the left slip ring; the spring contacts are in one-to-one contact connection with the copper circular ring pieces.
The application also discloses a monitoring device that contains above-mentioned floating dolphin device, contains:
the grating strain sensors are arranged in stress sensitive areas of the lower-layer bollards and the upper-layer bollards;
the two ends of the rope with the tension meter in the middle are respectively fastened on the same layer of cable posts of the two floating triangular cylinders; the middle part of the rope is also provided with a tensioning device;
the control center is respectively connected with the tension meter and the grating strain sensor, and provides different tension through the tensioning device in advance to obtain a tension-strain comparison table; the control center obtains the current mooring force in real time based on the tensile force-strain comparison table and the measurement data of the grating strain sensor 4.
On the basis of the technical scheme, the floating dolphin device also comprises an electrodeless speed regulation motor;
the monitoring device also comprises a water level sensor; the water level sensor and the stepless speed regulating motor are both connected to the control center; the water level sensor monitors the current water level in real time, and the control center controls the stepless speed regulating motor to rotate forward or reversely according to the water level change of the water level sensor, so that the cable is wound and unwound in real time.
The application also discloses a monitoring method adopting the monitoring device, which comprises the following steps:
s1, a control center obtains a stress sensitive area of a floating triangular prism of a floating dolphin device through simulation calculation and analysis;
s2, connecting the two floating dolphin devices through a rope with a tension meter in the middle, installing grating strain sensors in stress sensitive areas of a lower-layer bollard and an upper-layer bollard, and calibrating a strain value measured by the grating strain sensors of the floating dolphin devices by a control center to obtain a tension-strain comparison table;
s3, in the using process of the ship lock, the floating triangular prism body floats up and down along with the change of the water level, and the cable connected with the floating triangular prism body is self-adaptively retracted and released; the control center monitors the strain of the stress sensitive area in real time according to the grating strain sensor, and converts the strain to obtain the mooring force borne by the lower-layer mooring post or the upper-layer mooring post.
On the basis of the technical scheme, the cable winding and unwinding device comprises:
two fixed bases arranged at intervals;
the fixed shaft horizontally spans between the two fixed bases;
the cable winding drum is arranged right above the floating triangular prism and sleeved on the fixed shaft, and is used for winding and unwinding cables along with rising or falling of the water level; the bottom ends of the cables are connected with all the electric equipment on the floating triangular prism;
the communication power supply device is sleeved and fixed on the fixed shaft;
the floating dolphin device also comprises an electrodeless speed regulation motor and a water level sensor; the water level sensor is used for monitoring the current water level in real time, and the stepless speed regulating motor rotates forward or reversely according to the water level change of the water level sensor, and the cable is wound and unwound in real time.
On the basis of the technical proposal, the water level sensor detects that the water level sensor detects the water level is at delta t=t b -t a The water level is H a Change to H b The method comprises the steps of carrying out a first treatment on the surface of the Correspondingly, the control center controls the average rotating speed of the stepless speed regulating motor within delta t to be n 0 ，
n 0 ＝(H b -H a )/kΔt；
Wherein k is the proportionality coefficient of the rotating speed and the lifting distance.
Based on the above technical solution, in step S1, obtaining the stress sensitive area of the floating triangular prism of the floating dolphin device includes:
establishing a corresponding three-dimensional simulation model according to the actual size of each component of the floating dolphin device; establishing a coordinate origin, and generalizing a floating triangular prism;
performing grid division on the three-dimensional simulation model of the floating dolphin device by using a tetrahedron grid division method;
and calculating and searching the position with the largest average stress, namely the stress sensitive area.
The beneficial effects that technical scheme that this application provided brought include:
according to the floating dolphin device, the monitoring device and the monitoring method, the floating triangular prism 12 with the specific structure is adopted, and the cable winding and unwinding device 8 is arranged, so that the cable 87 can be effectively managed by the cable winding and unwinding device 8, messy and insolated water exposure of the cable 87 are avoided, and the service life of the cable 87 is prolonged; firstly, obtaining a stress sensitive area 5 through simulation calculation and analysis, then installing a grating strain sensor 4 into the stress sensitive area 5, calibrating after installation, and obtaining a tension-strain comparison table in advance; in the real-time monitoring process, the control center can convert in real time according to the strain data to obtain the mooring force, and the monitoring device and the monitoring method can accurately monitor the mooring force after being calibrated in advance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a simplified schematic diagram of a floating dolphin device provided in an embodiment of the present application;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a side view (a) and top view (b) of the top of a floating triangular prism provided by an embodiment of the present application;
FIG. 4 is a side view (a) and top view (b) of the bottom of a floating triangular prism provided by an embodiment of the present application;
fig. 5 is a schematic diagram of a cable winding and unwinding device according to an embodiment of the present disclosure;
FIG. 6 is a front view (a) and a side view (b) of a left slip ring provided by an embodiment of the present application;
FIG. 7 is a front view (a) and a side view (b) of a right slip ring provided by an embodiment of the present application;
FIG. 8 is a schematic diagram of calibration related components provided in an embodiment of the present application;
reference numerals: 1. a floating dolphin device; 11. a column; 111. mooring the movable groove; 12. floating triangular prism bodies; 121. upper layer bollards; 122. a side prism; 123. a medium prism; 124. connecting a top plate; 1241. the top surface of the top plate is connected; 13. a floating bearing platform; 125. lower layer bollards; 126. a connecting bottom plate;
2. a tension meter; 3. a tensioning device; 4. a grating strain sensor; 5. a stress sensitive area; 6. a rope; 8. a cable winding and unwinding device; 81. a fixed base; 82. a fixed shaft; 83. an electrodeless speed regulating motor; 84. a cable drum; 841. a left slip ring; 8411. an insulating resin; 8412. copper circular ring pieces; 85. a communication power supply device; 851. a right slip ring; 8511. a spring contact; 86. a water level sensor; 87. a cable.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1 to 8, the present application discloses an embodiment of a ship lock floating dolphin device, wherein the floating dolphin device 1 comprises two upright posts 11, a floating triangular prism 12, a floating bearing platform 13 and a cable reeling and unreeling device 8, the two upright posts 11 are arranged at intervals, and a mooring movable groove 111 is formed between the two upright posts 11.
The floating triangular prism 12 includes a middle prism 123 and two side prisms 122, the middle prism 123 is located right in the middle of the two side prisms 122, and the two side prisms 122 are symmetrically disposed on both sides of the middle prism 123. The bottom ends of the middle prism 123 and the two side prisms 122 meet at the lower layer cable post 125, the top end of the middle prism 123 is provided with the upper layer cable post 121, the top ends of the two side prisms 122 are provided with the connecting top plate 124, and the upper layer cable post 121 vertically penetrates through the connecting top plate 124. The small upper-section bollards 121 are located below the connecting roof 124 and the large upper-section bollards 121 are located above the connecting roof 124. The left and right legs of the connecting top plate 124 are slidably disposed between the two columns 11.
The floating platform 13 is fixed to the bottom of the floating triangular prism 12, and the floating platform 13 is also slidably disposed between the two posts 11. The ship lock floating type bollard device can float up and down along with rising or falling of the water level in the actual working process.
The cable winding and unwinding device 8 is used for winding and unwinding the cable 87 in real time along with the floating triangular prism 12 and the floating bearing platform 13 which float up and down. Specifically, cable 87 includes signal lines and cables that power the sensors or other devices on floating triangular prism 12 for communication.
The floating dolphin device of this application adopts the special structure's floating triangular prism 12, through setting up cable winding and unwinding devices 8, cable winding and unwinding devices 8 can effectively manage cable 87, avoids cable 87 to be messy and insolate the bubble water, has improved the life of cable 87.
As shown in fig. 5, in one embodiment, the cable winding and unwinding device 8 includes two fixed bases 81, a fixed shaft 82, a cable drum 84, and a communication power supply 85. The two fixed bases 81 are arranged at intervals, and the fixed shaft 82 horizontally spans between the two fixed bases 81. The cable drum 84 is disposed right above the floating triangular prism 12, the cable drum 84 is rotatably sleeved on the fixed shaft 82, and the cable drum 84 is used for winding and unwinding the cable 87 along with rising or falling of the water level. The bottom end of the cable 87 is connected to all of the electrical devices (including but not limited to sensors) on the floating triangular prism 12. The communication power supply device 85 is sleeved and fixed on the fixed shaft 82, and the communication power supply device 85 is adjacent to the cable drum 84. The communication power supply device 85 mainly performs power supply distribution and signal line distribution.
Further, the floating dolphin device 1 further comprises an stepless speed regulating motor 83, and the stepless speed regulating motor 83 drives the cable drum 84 to rotate forward or reversely according to the water level change, so that the cable 87 is wound and unwound in real time, and effective management of the cable 87 is performed.
In one embodiment, floating dolphin device 1 further comprises a communication power unit 85, wherein communication power unit 85 is fixedly sleeved on fixed shaft 82 and is adjacent to cable drum 84.
A left slip ring 841 is provided on one side of the cable reel 84, a right slip ring 851 is provided on one side of the communication power supply device 85, and the left slip ring 841 and the right slip ring 851 are adjacently provided.
A plurality of concentric copper ring pieces 8412 (see fig. 6) are provided on one side end surface of the left slip ring 841 facing the right slip ring 851, and a plurality of spring contacts 8511 (see fig. 7) are provided on one side end surface of the right slip ring 851 facing the left slip ring 841; spring contacts 8511 are in contact with and connected to copper circular ring sheet 8412.
Specifically, the spring contact 8511 and the copper circular ring sheet 8412 are always kept in a connected state, and the connection is always maintained regardless of how the cable drum 84 rotates; the plurality of copper rings 8412 are in a connected relationship with the depending cable 87. The right side slip ring 851 and the left side slip ring 841 of the present application are smart and are advantageous for distribution connection of electric wires and signal wires.
In one embodiment, the copper ring plate 8412 has 4 turns and the spring contacts 8511 have four, one-to-one, three for communication and one for power.
The application also discloses a monitoring devices including above-mentioned floating dolphin device, monitoring devices include a plurality of grating strain sensor 4, rope 6 and control center, and a plurality of grating strain sensor 4 set up in the atress sensitive area 5 of lower floor's bollard 125 and upper strata bollard 121, real time monitoring strain. The tension meter 2 is arranged in the middle of the rope 6, and two ends of the rope 6 are respectively fastened on the same-layer bollard of the two floating dolphin devices 1. Specifically, both ends of the rope 6 are simultaneously tied to the two upper layer bollards 121 or the two lower layer bollards 125. The middle part of the rope 6 is also provided with a tensioning device 3 for providing different pulling forces for calibration.
The control center is respectively connected with the tension meter 2 and the grating strain sensor 4, and different tension is provided by the tensioning device 3 in advance to obtain a tension-strain comparison table; the control center obtains the current mooring force in real time based on the tensile force-strain comparison table and the measurement data of the grating strain sensor 4.
It should be noted that, at the beginning of the design of the floating triangular prism 12 of the present application, the dimensions of the floating triangular prism 12 are specially designed, so that the lower-layer bollard 125 and the upper-layer bollard 121 correspond to the mooring structure reserved by the ship itself, and when mooring, the straightened cable is just horizontal; the tension-strain comparison table is obtained by calibrating the cable 6 with the tension meter 2.
With respect to the monitoring device, further, the floating dolphin device 1 further comprises an endless speed regulating motor 83, and the endless speed regulating motor 83 drives the cable drum 84 to rotate forward or backward according to the water level change, so that the cable 87 is wound and unwound in real time.
The monitoring device also includes a water level sensor 86; the water level sensor 86 and the stepless speed regulating motor 83 are both connected to the control center; the water level sensor 86 monitors the current water level in real time and feeds back a water level signal to the control center, and the control center controls the stepless speed regulating motor 83 to rotate forward or reversely according to the water level change of the water level sensor 86, so that the cable 87 is wound and unwound in real time, the purpose of synchronizing the cable 87 and the water level change is achieved, the cable 87 is effectively managed, and the service life of the cable 87 is prolonged.
Further, the communication power supply device 85 in the floating dolphin device 1 is connected to the control center, and the communication power supply device 85 plays a transitional role, so that electric wires and signal wires can be managed in a centralized manner.
The application also discloses a monitoring method adopting the monitoring device, which comprises the following steps:
s1, a control center obtains a stress sensitive area 5 of a floating triangular prism 12 of a floating dolphin device 1 through simulation calculation and analysis;
s2, connecting the two floating dolphin devices 1 through a rope 6 with a tension meter 2 in the middle, installing a grating strain sensor 4 in a stress sensitive area 5 of a lower-layer bollard 125 and an upper-layer bollard 121, and calibrating a strain value measured by the grating strain sensor 4 of the floating dolphin device 1 by a control center to obtain a tension-strain comparison table;
and S3, in the using process of the ship lock, the floating triangular prism 12 floats up and down along with the change of the water level, and the cable connected with the floating triangular prism 12 is self-adaptively retracted and released. The floating triangular prism 12 and the floating bearing platform 13 are slidably arranged between the two upright posts 11 through a slip ring, and the winding and unwinding of the cable and the up-and-down sliding of the floating triangular prism 12 are synchronously performed. The control center monitors the strain of the stress sensitive area 5 in real time according to the grating strain sensor 4 and converts the strain to a mooring force which is being carried by the lower mooring post 125 or the upper mooring post 121.
According to the monitoring method, a stress sensitive area 5 is obtained through simulation calculation and analysis, then a grating strain sensor 4 is installed on the stress sensitive area 5, calibration is carried out after installation, and a tension-strain comparison table is obtained in advance; in the process of real-time monitoring, the control center can convert in real time according to the strain data to obtain the mooring force, and the monitoring method can accurately monitor the mooring force after being calibrated in advance.
In one embodiment, strain sensors are installed on the inner side of the upper layer bollard 121 cylinder, strain sensors are installed on the lower side of the connecting bottom plate 126 of the lower layer bollard 125, and when the lower layer bollard is pulled, the measured value pulling force is positive, the measured data and the pulling force are linearly changed, and the correct selection point is verified. Finally, the inner side of the cylinder of the upper-layer cable pillar 121 (1 sensor is respectively arranged at the left side and the right side of the angle of 45 degrees with the dam wall) and the lower side of the connecting bottom plate 126 (2 sensors are arranged in parallel) are proved to have the advantages that the measured data and the tensile force change linearly, and the measured data and the tensile force are 0.1 ton of the tensile force corresponding to the 1 mu epsilon of the fiber grating sensor, so that the precision and the accuracy are good.
Further, the cable winding and unwinding device 8 includes two fixed bases 81, a fixed shaft 82, a cable drum 84, and a communication power supply device 85. The two fixed bases 81 are arranged at intervals, and the fixed shaft 82 horizontally spans between the two fixed bases 81. The cable drum 84 is disposed right above the floating triangular prism 12, the cable drum 84 is rotatably sleeved on the fixed shaft 82, and the cable drum 84 is used for winding and unwinding the cable 87 along with rising or falling of the water level. The bottom end of the cable 87 is connected to all of the electrical devices (including but not limited to sensors) on the floating triangular prism 12. The communication power supply device 85 is sleeved and fixed on the fixed shaft 82, and the communication power supply device 85 is adjacent to the cable drum 84. The communication power supply device 85 mainly performs power supply distribution and signal line distribution.
The floating dolphin device 1 also comprises an stepless speed regulating motor 83 and a water level sensor 86, wherein the water level sensor 86 is used for monitoring the current water level in real time and feeding back to a control center; the control center controls the stepless speed regulating motor 83 to rotate forward or reverse according to the water level change of the water level sensor 86, so that the cable drum 84 rotates forward or reverse, and the cable 87 is wound and unwound in real time.
Further, the water level sensor 86 monitors the flow rate from t a From time to t b Time period Δt=t of time b -t a Within Δt seconds, the water level is changed from H a Change to H b . At the moment, correspondingly, the control center controls the average rotating speed of the stepless speed regulating motor in delta t to be n 0 ，n 0 ＝(H b -H a )/kΔt。
Wherein k is the proportionality coefficient of the rotating speed and the lifting distance. The monitoring method can efficiently manage the cable 87, so that the cable 87 is always synchronous with the rising or falling of the water level, and the cable 87 is efficiently managed.
Further, in step S1, the obtaining of the stress sensitive area 5 of the floating triangular prism 12 of the floating dolphin device 1 comprises:
establishing a corresponding three-dimensional simulation model according to the actual dimensions of each component of the floating dolphin device 1; establishing a coordinate origin, and generalizing the floating triangular prism 12;
the three-dimensional simulation model of the floating dolphin device 1 is subjected to grid division by using a tetrahedron grid division method;
gradually calculating and searching the position with the largest average stress, namely the stress sensitive area.
In one embodiment, the ANSYS Workbench is used to build a three-dimensional numerical simulation model of the floating dolphin device 1, based on the physical dimensions of the components of the device, with the origin of coordinates located at the center of intersection of the upper bollard 121 and the connecting roof. In the process of establishing the three-dimensional numerical simulation model, the upper structure of the ship lock floating type bollard is considered to be a symmetrical structure, and 4 longitudinal and transverse rollers of the upper structure are generalized to be three-dimensional prisms.
According to the actual structural characteristics and stress conditions of the floating dolphin, the Solid186 entity unit in the ANSYS Workbench is selected as a basic calculation unit of the three-dimensional numerical simulation model of the ship lock floating dolphin, the computer performance of a numerical simulation laboratory is comprehensively considered, and the three-dimensional numerical simulation model of the ship lock floating dolphin is subjected to grid division by adopting a tetrahedral grid Patch forming division method provided in the ANSYS Workbench. In order to reasonably analyze the stress state of the floating dolphin structure under the action of the ship mooring force, a simplified theoretical calculation model and a numerical simulation model are adopted to compare and verify the reliability of the numerical simulation model.
The main analysis object of the load-sensitive area 5 of the upper bollard 121 is finally calculated to be determined as the hollow cylindrical lower end part cylinder of the floating dolphin within 20mm from its upper and lower boundaries. The sensitive area 5 of the lower cable stud 125 is on the underside of the connection floor 126.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A lock floating dolphin apparatus comprising:
two stand columns (11) which are arranged at intervals;
the floating triangular prism body (12) comprises a middle prism (123) and two side prisms (122), wherein the bottom ends of the middle prism (123) and the two side prisms (122) are intersected with a lower-layer cable pillar (125), an upper-layer cable pillar (121) is arranged at the top end of the middle prism (123), a connecting top plate (124) is arranged at the top end of the two side prisms (122), and the upper-layer cable pillar (121) penetrates through the connecting top plate (124); the left and right feet of the connecting top plate (124) can slide between the two upright posts (11);
the floating bearing platform (13) is fixed at the bottom of the floating triangular prism (12), and the floating bearing platform (13) is slidably arranged between the two upright posts (11);
the cable winding and unwinding device (8) is used for winding and unwinding cables (87) in real time along with the floating triangular prism (12) and the floating bearing platform (13) which float up and down.
2. A lock floating dolphin device according to claim 1, characterized in that the cable take-up and pay-off device (8) comprises:
two fixed bases (81) arranged at intervals;
a fixed shaft (82) horizontally straddling between the two fixed bases (81);
the cable winding drum (84) is arranged right above the floating triangular prism (12) and is rotatably sleeved on the fixed shaft (82), and the cable winding drum (84) is used for winding and unwinding cables (87) along with rising or falling of the water level; the bottom end of the cable (87) is connected with all the electric equipment on the floating triangular prism (12).
3. A lock floating dolphin device as claimed in claim 1, wherein: the floating dolphin device (1) also comprises an electrodeless speed regulating motor (83); the stepless speed regulating motor (83) drives the cable drum (84) to rotate forward or reversely according to the water level change, and the cable (87) is wound and unwound in real time.
4. A lock floating dolphin device as claimed in claim 2, wherein: the floating dolphin device (1) further comprises a communication power supply device (85), wherein the communication power supply device (85) is fixedly sleeved on the fixed shaft (82) and is close to the cable drum (84);
a left slip ring (841) is arranged on one side of the cable drum (84), a right slip ring (851) is arranged on one side of the communication power supply device (85), and the left slip ring (841) and the right slip ring (851) are adjacently arranged;
a plurality of concentric copper ring pieces (8412) are arranged on one side end surface of the left slip ring (841) facing the right slip ring (851), and a plurality of spring contacts (8511) are arranged on one side end surface of the right slip ring (851) facing the left slip ring (841); the spring contacts (8511) are in one-to-one contact connection with the copper circular ring sheet (8412).
5. A monitoring device comprising the floating dolphin device of claim 1, comprising:
a plurality of grating strain sensors (4) arranged in stress sensitive areas (5) of the lower-layer bollards (125) and the upper-layer bollards (121);
a rope (6) with a tension meter (2) in the middle, two ends of which are respectively fastened on the same layer of cable posts of two floating triangular columns (12); the middle part of the rope (6) is also provided with a tensioning device (3);
the control center is respectively connected with the tension meter (2) and the grating strain sensor (4) and provides different tension through the tensioning device (3) in advance to obtain a tension-strain comparison table; the control center obtains the current mooring force in real time based on the tensile force-strain comparison table and the measurement data of the grating strain sensor 4.
6. The monitoring device for a floating dolphin installation of claim 5 wherein:
the floating dolphin device (1) also comprises an electrodeless speed regulating motor (83);
the monitoring device further comprises a water level sensor (86); the water level sensor (86) and the stepless speed regulating motor (83) are connected to the control center; the water level sensor (86) monitors the current water level in real time, and the control center controls the stepless speed regulating motor (83) to rotate forward or reversely according to the water level change of the water level sensor (86) and receives and releases the cable (87) in real time.
7. A monitoring method using the monitoring device of claim 5, comprising the steps of:
s1, a control center obtains a stress sensitive area (5) of a floating triangular prism (12) of a floating dolphin device (1) through simulation calculation and analysis;
s2, connecting the two floating dolphin devices (1) through a rope (6) with a tension meter (2) in the middle, installing a grating strain sensor (4) in a stress sensitive area (5) of a lower-layer bollard (125) and an upper-layer bollard (121), and calibrating a strain value measured by the grating strain sensor (4) of the floating dolphin devices (1) by a control center to obtain a tension-strain comparison table;
s3, in the using process of the ship lock, the floating triangular prism (12) floats up and down along with the change of the water level, and the cable connected with the floating triangular prism (12) is self-adaptively wound and unwound; the control center monitors the strain of the stress sensitive area (5) in real time according to the grating strain sensor (4) and converts the strain to obtain the mooring force borne by the lower-layer bollard (125) or the upper-layer bollard (121).
8. The monitoring method of the monitoring device according to claim 7, wherein the cable pay-off and take-up device (8) comprises:
two fixed bases (81) arranged at intervals;
a fixed shaft (82) horizontally straddling between the two fixed bases (81);
the cable winding drum (84) is arranged right above the floating triangular prism (12) and sleeved on the fixed shaft (82), and the cable winding drum (84) is used for winding and unwinding cables (87) along with rising or falling of the water level; the bottom end of the cable (87) is connected with all the electric equipment on the floating triangular prism (12);
a communication power supply device (85) which is sleeved and fixed on the fixed shaft (82);
the floating dolphin device (1) further comprises an electrodeless speed regulating motor (83) and a water level sensor (86); the water level sensor (86) is used for monitoring the current water level in real time, the stepless speed regulating motor (83) rotates forward or reversely according to the water level change of the water level sensor (86), and the cable (87) is wound and unwound in real time.
9. The monitoring method of the monitoring device according to claim 8, wherein:
the water level sensor (86) detects that at Δt=t b -t a The water level is H a Change to H b The method comprises the steps of carrying out a first treatment on the surface of the Correspondingly, the control center controls the average rotating speed of the stepless speed regulating motor within delta t to be n 0 ，n 0 ＝(H b -H a )/kΔt；
Wherein k is the proportionality coefficient of the rotating speed and the lifting distance.
10. The monitoring method of the monitoring device according to claim 7, wherein:
in step S1, the obtaining of the stress sensitive zone (5) of the floating triangular prism (12) of the floating dolphin device (1) comprises:
establishing a corresponding three-dimensional simulation model according to the actual size of each component of the floating dolphin device (1); establishing a coordinate origin, and generalizing a floating triangular prism (12);
using a tetrahedron grid dividing method to divide grids of the three-dimensional simulation model of the floating dolphin device (1);
and calculating and searching the position with the largest average stress, namely the stress sensitive area.
CN202310232642.3A 2023-03-06 2023-03-06 Ship lock floating type bollard device, monitoring device and monitoring method Pending CN116356787A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310232642.3A CN116356787A (en) 2023-03-06 2023-03-06 Ship lock floating type bollard device, monitoring device and monitoring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310232642.3A CN116356787A (en) 2023-03-06 2023-03-06 Ship lock floating type bollard device, monitoring device and monitoring method

Publications (1)

Publication Number Publication Date
CN116356787A true CN116356787A (en) 2023-06-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310232642.3A Pending CN116356787A (en) 2023-03-06 2023-03-06 Ship lock floating type bollard device, monitoring device and monitoring method

Country Status (1)

Country Link
CN (1) CN116356787A (en)

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