CN105539758B - A kind of control method of clamshell bilge keelson - Google Patents
A kind of control method of clamshell bilge keelson Download PDFInfo
- Publication number
- CN105539758B CN105539758B CN201510974535.3A CN201510974535A CN105539758B CN 105539758 B CN105539758 B CN 105539758B CN 201510974535 A CN201510974535 A CN 201510974535A CN 105539758 B CN105539758 B CN 105539758B
- Authority
- CN
- China
- Prior art keywords
- clam shell
- shell design
- ship
- bilge
- bilge keelson
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Toys (AREA)
Abstract
The present invention relates to a kind of bilge keelson control method, the agent structure of targeted clamshell bilge keelson includes fixed clam shell design (2) and rotates clam shell design (1) two parts, rotate clam shell design (1) to be connected with fixed clam shell design (2) by rotating shaft system, its control method is：In ship's navigation, monitor ship roll angle, angular speed and angular acceleration, and obtain drauht information, check vessel stability change, if roll angle, angular speed, any one index in three parameters of angular acceleration persistently exceeds the corresponding secure threshold upper limit in setting time, then deploy the rotation clam shell design of bilge keelson using motor-driven rotatable shaft system, if roll angle, angular speed, three parameters of angular acceleration are consistently less than corresponding secure threshold lower limit in setting time, then utilize the rotation clam shell design of motor-driven rotatable shaft systems fold bilge keelson.The present invention can intelligently manipulate bilge keelson folding.
Description
Technical field
The present invention relates to a kind of shipborne equipment for reducing rolling, and in particular to a kind of to be used for what ship Counter-Flooding Stabilization anti-inclining was covered
Bilge keelson.
Background technology
The motion of swaying of ship is a kind of harmful ship motion, and it brings not to crewman, Ship Structure, plant equipment etc.
The influence of profit.Oscillation of ship motion includes rolling, pitching, yawing, surging, six kinds of forms of swaying and heaving, and wherein rolling is to ship
The influence of oceangoing ship performance is maximum, and pitching is taken second place.In order to slow down or reduce waving for ship, stabilizer can be added on ship.
According to this qualitative classification for the power for constituting stabilizing moment, stabilizer can be divided into Action of Gravity Field formula, fluid dynamic and made
With formula, the class of turning power action type three；Passive type and active two class can be divided into again according to control form.At present, ship is commonly used
Stabilizer has：Bilge keelson, stabilizer, tank stabilizer, free gyroscope stabilizer, rudder stabilization device etc..Wherein, bilge keelson is because of it
Simple in construction, low cost, easy to maintenance, efficiency are preferably used widely, and almost every ship is equipped with bilge keelson.
In general, bilge keelson is fixedly mounted at the hull outside turn of the bilge and as far as possible vertical with bilge strake, along current side
To a block length batten, it is a kind of simplest passive type hydrodynamic force ship stabilizer.The length of bilge keelson is generally ship
Long 1/3 to 1/2, width is generally the 4% to 6% of the beam, and width is typically not greater than the square frame line of midship section.
It is to produce the additional water resistance to ship rolling on hull turn of the bilge shell using it that bilge keelson, which subtracts the principle shaken,
Power, to reduce ship rolling.
Existing technological improvement often focuses on carrying out the ship of different ship coefficients the experience optimization on yardstick, and is directed to
Simple linear end is improved and section optimization, such as：For the big ship of Block Coefficient, using long and narrow bilge keelson, together
When, in order to avoid bilge keelson participates in longitudinal bending, it is set to segmentation structure；For the small ship of Block Coefficient, such as fishing boat, bilge
Keel are arranged on above the turn of the bilge as far as possible, and short-wide can be made into triangle to improve local strength.
The advantage of bilge keelson is：Roll angle is bigger, more violent, and its anti-rolling effect is better；Anti-rolling effect ratio stops during navigation
It is more preferable during pool；Small to ship resistance, roll-resistant is larger；Anti-rolling effect is good, simple in construction, low-cost, is widely used.
However, there is following defect and deficiency in existing bilge keelson structure type：It is subject to damage；Certain navigation resistance is produced to ship
Power；Can only rollstabilization, it is impossible to pitching stabilization.Moreover, limited by bilge keelson size, subtract that the damping torque shaken is limited, subtract the energy shaken
Power (the reduction amplitude of oscillation) is limited, and anti-rolling effect is typically 10%~20% or so, it is difficult to meet demand.In addition, for the bilge of determination
Keel, due to the fixation of bilge keelson geomery, it is impossible to which the emergency of change and roll angle and acceleration for sea situation is carried out
Dynamic adjustment, greatly influences it to use scope.
The content of the invention
It is an object of the invention to overcome the shortcomings of that prior art is present to not appreciably affect ship resistance and performance there is provided one kind
In the case of can strengthen the bilge keelson of static pitching stability.The bilge keelson of the present invention, the bilge keelson effective area of deployed condition is turned over
Times, the roll damping of ship can be increased, effectively reduce the rolling of ship, strengthen static pitching stability；The bilge dragon of folded state
Bone monnolithic case fairing, will not excessively increase ship resistance, so that ship resistance and performance will not be significantly affected.The skill of the present invention
Art scheme is as follows：
A kind of clamshell bilge keelson control method, the agent structure of targeted clamshell bilge keelson includes fixed clam shell design
(2) and clam shell design (1) two parts are rotated, is in pancake after two parts are fit, head and the tail two ends are streamlined, fixed clam shell design
(2) bilge strake (3) is fixedly connected on, described rotation clam shell design (1) is connected by rotating shaft system with fixed clam shell design (2)
Connect, rotating shaft system is used for the folding for rotating clam shell design (1)；Control method is：For roll angle, angular speed, angular acceleration three
Individual parameter sets the secure threshold upper limit and secure threshold lower limit respectively, in ship's navigation, monitoring ship roll angle, angular speed
And angular acceleration, and drauht information is obtained, vessel stability change is checked, if roll angle, angular speed, angular acceleration three
Any one index in individual parameter persistently exceeds the corresponding secure threshold upper limit in setting time, then judges that ship rolling is transported
It is dynamic larger, deploy the rotation clam shell design of bilge keelson using motor-driven rotatable shaft system, if roll angle, angular speed, angle add
Three parameters of speed are consistently less than corresponding secure threshold lower limit in setting time, then judge ship rolling very little, utilize
The rotation clam shell design of motor-driven rotatable shaft systems fold bilge keelson.
Preferably, rotating shaft system includes at least a set of transport mechanism, transmission shaft (9) and output shaft (10),
Power transmission shaft (9) is placed in the side away from bilge strake (3) in fixed clam shell design (2), by being fixed on fixed clam shell design (2)
Bearings；Output shaft (10) is close and parallel with power transmission shaft (9), is placed in rotation clam shell design (1), and freshwater mussel is rotated by being fixed on
Bearings on shell structure (2)；Each set transport mechanism is arranged on different parts, and transport mechanism includes input shaft (8), bevel gear
(11) and spur gear (13), input shaft (8) is transversely arranged on the intracavitary of fixed clam shell design (2), and one end passes through bilge strake (3),
It is connected to the motor of hull interior；The other end drives power transmission shaft (9) normal thereto by bevel gear (11)；Power transmission shaft (9) leads to
Spur gear (13) engagement driving output shaft (10) is crossed to rotate；Set in fixed clam shell design (2) and the intracavitary for rotating clam shell design (1)
It is equipped with reinforcing plate (14).Lightening core (15) is offered in reinforcing plate (14).Biography is sealedly connected with outside every set transport mechanism
Dynamic case, transmission case is fixed in fixed clam shell design (2).
Using the beneficial effects of the invention are as follows：
1. the targeted retractable bilge keelson structure type of the control method of the present invention so that ship can be realized flexibly
Tackle different navigation conditions and requirement.In face of high sea situation or to stability require it is higher when, bilge keelson can be deployed, increase
Big damping, reduction rolling, strengthen stability；The foldable bilge keelson in the situation or limit irrigation of small stormy waves, prevents from bottoming out, touches
Hit, and the bilge keelson profile fairing of folded state does not interfere with the rapidity of ship.
2. integrated ship moves the control system of real-time watch device, the specific operational configuration of ship can be accurately grasped, according to
This science decision, convenient and intelligently manipulation bilge keelson folding.
2. bilge keelson agent structure is symmetrical above and below, front and rear symmetrical, head and the tail two ends, center section shape of cross section phase are removed
Together.Same mold, batch modularized production can be used during construction.
3. rotating shaft transmission system architecture is simple and reliable, and takes full advantage of the inner space of bilge keelson enclosed construction.
Brief description of the drawings
Fig. 1 is the retractable clamshell bilge keelson overall construction drawing of interior type for being applicable the control method of the present invention；
Fig. 2 is the retractable clamshell bilge keelson completely folded state figure of interior type for being applicable the control method of the present invention；
Fig. 3 is the retractable clamshell bilge keelson its fully unfolded position figure of interior type for being applicable the control method of the present invention
Fig. 4 is the structure chart for the retractable clamshell bilge keelson rotating shaft system of interior type for being applicable the control method of the present invention；
Fig. 5 is part of the retractable clamshell bilge keelson of interior type in driving front case position for being applicable the control method of the present invention
Structure chart；
Fig. 6 is clamshell bilge keelson control flow schematic diagram of the invention；
1. transmission case 7. in transmission case 6. after the cladding plate 5. of 3. bilge strake of the rotation fixation clam shell design of clam shell design 2. 4.
The reinforcing plate of 13. spur gear of driving front case 8. input shaft, 9. power transmission shaft, 10. output shaft, 11. bevel gear, 12. bearing 14.
15. lightening core
Embodiment
Below in conjunction with drawings and examples, the present invention is described in further detail.Specific implementation described herein
Example mode is only used for explaining the present invention, the protection domain being not intended to limit the present invention.
The control method suitable devices of the present invention are a kind of interior retractable clamshell bilge keelson of type, are mainly used in all kinds of ships
Oceangoing ship, for suppressing rolling under Various Complex state.
As shown in Figures 1 to 5, such a interior retractable clamshell bilge keelson of type, agent structure is by fixing clam shell design 2 and turning
The dynamic two parts of clam shell design 1 composition, described fixation clam shell design 2 and rotation clam shell design 1 seals for mutually symmetrical with platypelloid type
Close structure.Head and the tail two ends are streamlined, keep the streamline fairing of bilge keelson longitudinal direction.Totally 4 ends are identical for head and the tail up and down, can
To build in batches.Head and the tail two ends are removed, center section shape of cross section is identical, during construction same set of mold sections can be used to build
Make.Therefore clamshell bilge keelson main part can realize produced modularization in batches, reduce construction cost.Fixed clam shell design 2 is consolidated
Surely bilge strake 3 is connected to, and perpendicular to bilge strake 3, junction welding cladding plate；Described rotation clam shell design 1 is above, leads to
Rotating shaft system is crossed to be connected with fixed clam shell design 2.Set in the enclosed construction of fixed clam shell design 2 and rotation clam shell design 1
Reinforcing plate 14, to enhancing structure intensity, sets lightening core 15, due to bilge keelson center section cross section phase in strengthening version
Together, thus strengthen plate shape it is identical, can build in batches.
Rotating shaft system is made up of input shaft 8, power transmission shaft 9, output shaft 10.Input shaft 8 is transversely arranged on fixed clam shell design 2
Intracavitary, one end pass through bilge strake 3, be connected to the engine of hull interior；The other end is driven normal thereto by bevel gear 11
Power transmission shaft 9；Power transmission shaft 9 is located in fixed clam shell design 2 away from hull side, is longitudinally arranged；Output shaft 10 abuts power transmission shaft
9, it is parallel with power transmission shaft 9, driving is engaged by spur gear 13 with power transmission shaft at two ends and centre position and rotated, in relevant position point
Not She Zhi after transmission case 5, middle transmission case 6, driving front case 7, protect gear train.Transmission case is integrated with fixed clam shell design 2,
Profile is tubular, and two ends will set sealing device, prevent seawater from entering.Input shaft 8, power transmission shaft 9, on output shaft 10, such as scheming
Shown location arrangements bearing 12, to support, the position of fixed shafting, described bearing 12 will be with fixed clam shell design 2
Shell is fixed together.Described output shaft 10 is fixed together with described rotation clam shell design 1 so that rotate clam shell design
1 realizes the rotation under the drive of output shaft 10.
As shown in fig. 6, the retractable clamshell bilge keelson of interior type of the present invention, its control system is by the real-time monitoring of ship motion
Equipment, data collection and analysis show system, motor control system composition.The fluid level measuring instrument set in shipboard, to real-time
Monitor the drinking water of the side of a ship of ship two.Dynamic parameter measurement instrument is set near ship mass axis position, in real time the horizontal stroke of monitoring ship
Shake the data such as speed, angular speed.Data collection and analysis shows that the electric signal monitored is inputted computer by system, is converted into corresponding
Physical quantity, the motion state of ship is drawn accordingly, and provide the good and bad judgement of ship navigation state, and clamshell bilge keelson
The suggestion of folding, it is intuitively presented on the screen of driver's cabin., can be by calculating as a kind of way of realization of this patent
Machine is manipulated automatically, and auxiliary controls motor rotation with human pilot manual manipulation motor control system, finally makes clamshell bilge dragon
Bone is correspondingly realized expansion or folded, and automatically adjusts ship rolling.Can certainly be completely by human pilot manual manipulation motor
Control system.
In ship's navigation, ship motion real-time monitoring system monitors ship rolling angle, angular speed, angular acceleration
Deng with reference to drauht, computer is inputted as parameter, vessel stability change is checked, if roll angle, angular speed, angle add
Any one or more indexs in three parameters of speed in setting time (be such as set as the ship natural period 1/4) are held
It is continuous to exceed a certain secure threshold (such as angle threshold is set to 10 degree), judge that ship rolling motion is larger, and data collection and analysis
Display system can send alarm to driver's cabin, and result is included on screen.Subsequent motor control system Automatic-expanding bilge
The rotation clam shell design of keel, as shown in figure 3, increase bilge keelson effective area, so as to increase roll damping, suppresses rolling.Such as
Any one or more indexs in fruit roll angle, angular speed, three parameters of angular acceleration (are such as set in setting time
A certain secure threshold (such as angle threshold is set to 5 degree) 1/4) is consistently less than for the ship natural period, ship rolling very little, then
The rotation clam shell design of motor control system auto-folder bilge keelson, as shown in Figure 2.
For navigating by water in the case of limit irrigation or other particular/special requirements, it is necessary to fold (or expansion) bilge keelson, Ke Yiyou
Driver controls bilge keelson folding manually.
It is above-described, it is only, to explain presently preferred embodiments of the present invention, to be not intended to make any to the present invention according to this
Formal limitation, it is then, all to have any modification or change made under identical creation spirit, it should be included in this hair
Bright scope of the claims.
Claims (5)
1. a kind of clamshell bilge keelson control method, the agent structure of targeted clamshell bilge keelson includes fixed clam shell design (2)
It is in pancake with rotating after clam shell design (1) two parts, two parts zoarium, head and the tail two ends are streamlined, fixed clam shell design (2)
Bilge strake (3) is fixedly connected on, described rotation clam shell design (1) is connected with fixed clam shell design (2) by rotating shaft system, turned
Axle system is used for the folding for rotating clam shell design (1)；Control method is：For roll angle, angular speed, three parameters of angular acceleration
The setting secure threshold upper limit and secure threshold lower limit, in ship's navigation, monitor ship roll angle, angular speed and angle and add respectively
Speed, and drauht information is obtained, vessel stability change is checked, if roll angle, angular speed, three parameters of angular acceleration
In any one index in setting time persistently exceed the corresponding secure threshold upper limit, then judge ship rolling motion compared with
Greatly, the rotation clam shell design of bilge keelson is deployed using motor-driven rotatable shaft system, if roll angle, angular speed, angular acceleration
Three parameters are consistently less than corresponding secure threshold lower limit in setting time, then judge ship rolling very little, utilize motor
The rotation clam shell design of drive shaft systems fold bilge keelson, the control system moves real-time watch device, data by ship
Collection analysis shows system, motor control system composition；The fluid level measuring instrument set in shipboard, to monitoring ship two in real time
The drinking water of the side of a ship；Dynamic parameter measurement instrument is set near ship mass axis position, in real time the rolling velocity of monitoring ship and angle
Speed data.
2. bilge keelson control method according to claim 1, it is characterised in that described rotating shaft system includes at least a set of
Transport mechanism, power transmission shaft (9) and output shaft (10), power transmission shaft (9) are placed in fixed clam shell design (2) away from bilge strake (3)
Side, by the bearings being fixed on fixed clam shell design (2)；Output shaft (10) is close and parallel with power transmission shaft (9), is placed in
Rotate in clam shell design (1), by being fixed on the bearings rotated on clam shell design (2)；Each set transport mechanism is arranged on difference
Position, transport mechanism includes input shaft (8), bevel gear (11) and spur gear (13), and input shaft (8) is transversely arranged on fixed clam shell
The intracavitary of structure (2), one end passes through bilge strake (3), is connected to the motor of hull interior；The other end is driven by bevel gear (11)
Power transmission shaft (9) normal thereto；Power transmission shaft (9) is rotated by spur gear (13) engagement driving output shaft (10).
3. bilge keelson control method according to claim 1, it is characterised in that in fixed clam shell design (2) and rotation freshwater mussel
The intracavitary of shell structure (1) is provided with reinforcing plate (14).
4. bilge keelson control method according to claim 3, it is characterised in that offer lightening core in reinforcing plate (14)
(15)。
5. bilge keelson control method according to claim 1, it is characterised in that be tightly connected outside every set transport mechanism
There is transmission case, transmission case is fixed in fixed clam shell design (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974535.3A CN105539758B (en) | 2015-12-22 | 2015-12-22 | A kind of control method of clamshell bilge keelson |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974535.3A CN105539758B (en) | 2015-12-22 | 2015-12-22 | A kind of control method of clamshell bilge keelson |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105539758A CN105539758A (en) | 2016-05-04 |
| CN105539758B true CN105539758B (en) | 2017-09-19 |
Family
ID=55819419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510974535.3A Expired - Fee Related CN105539758B (en) | 2015-12-22 | 2015-12-22 | A kind of control method of clamshell bilge keelson |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105539758B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106394822B (en) * | 2016-10-21 | 2018-05-18 | 哈尔滨工程大学 | A kind of ship extendible bilge keelson device using guide rail |
| CN107054579A (en) * | 2017-04-19 | 2017-08-18 | 河北工程大学 | A kind of control method of the flexible bilge keelson system of gear driving |
| CN107818226B (en) * | 2017-11-16 | 2023-11-07 | 中船黄埔文冲船舶有限公司 | Three-dimensional modeling method of bilge keel structure and bilge keel structure |
| CN111290416B (en) * | 2020-01-20 | 2020-11-20 | 郑州宇通重工有限公司 | Ship attitude control method, system, computer storage medium and ship |
| CN112744337B (en) * | 2021-03-02 | 2021-12-14 | 广东海洋大学 | Ship driving balancing device and balancing method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100551447B1 (en) * | 2004-02-17 | 2006-02-09 | 김영복 | Apparatus for controlling rolling and pitching of a ship |
| KR20100059142A (en) * | 2008-11-26 | 2010-06-04 | 삼성중공업 주식회사 | Foldable bilge keel in ship |
| KR20120008331A (en) * | 2010-07-16 | 2012-01-30 | 현대중공업 주식회사 | Anti-roll apparatus for ships and marine structure |
| KR101302210B1 (en) * | 2011-06-15 | 2013-08-30 | 삼성중공업 주식회사 | Ship with foldable bilge keel |
| CN105083466B (en) * | 2015-09-08 | 2017-05-03 | 天津大学 | Foldable bilge keel with groove-shaped base plate |
-
2015
- 2015-12-22 CN CN201510974535.3A patent/CN105539758B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105539758A (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105539757B (en) | A kind of retractable bilge keelson of extratensive type | |
| CN105539758B (en) | A kind of control method of clamshell bilge keelson | |
| US8746162B2 (en) | Vertically-variable ocean sail system | |
| CN105438414B (en) | A kind of bilge keelson | |
| CN104229092B (en) | Ship rolling balance automatic control system and method | |
| CN107117271A (en) | A kind of control method of the flexible bilge keelson system of hydraulic-driven | |
| CN205469707U (en) | Bilge keelson | |
| CN202624599U (en) | Propeller stabilization system | |
| CN103935482A (en) | Automatic navigation control system improving seakeeping performance of ship | |
| FR2862602A1 (en) | Sailing ship for yachting, has streamlined immersed floater that is fully immersed in water and supports platform through pylon carriers, and auxiliary floater that touches water when ship is at halt or travels at slow speed | |
| CN105966568A (en) | Self-adaptive adjustable device arranged on maritime cruising search and rescue unmanned ship | |
| CN105083466B (en) | Foldable bilge keel with groove-shaped base plate | |
| CN105539759B (en) | A kind of control method of frog mouth formula bilge keelson | |
| CN205440803U (en) | Outer type bilge keelson that can open and shut of opening | |
| CN107054579A (en) | A kind of control method of the flexible bilge keelson system of gear driving | |
| CN105197197A (en) | Rotary V-shaped bilge keel provided with guide vanes | |
| CN105799879B (en) | A kind of ship | |
| CN201148207Y (en) | Motor driven hydrofoil bionic thruster | |
| Yoshimura | Mathematical model for the manoeuvring ship motion in shallow water (2nd Report)-mathematical model at slow forward speed | |
| CN106995044A (en) | A kind of flexible bilge keelson system of gear driving | |
| CN104890832B (en) | T-shaped rotor foil low-speed stabilization apparatus | |
| CN2892669Y (en) | Ship capable of reducing body vibration | |
| DE102019206794B4 (en) | Underwater vehicle | |
| CN210116622U (en) | Telescopic stabilizing device | |
| Horel et al. | Experimental database for surf-riding and broaching-to quantification based on captive model tests in waves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 300350 District, Jinnan District, Tianjin Haihe Education Park, 135 beautiful road, Beiyang campus of Tianjin University Patentee after: Tianjin University Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92 Patentee before: Tianjin University |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170919 Termination date: 20201222 |