CN204606161U - Deep water dynamic positioning semisubmersible platform is tuning to hang down and swings plate and subtract to shake to subtract and swing control system - Google Patents
Deep water dynamic positioning semisubmersible platform is tuning to hang down and swings plate and subtract to shake to subtract and swing control system Download PDFInfo
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- CN204606161U CN204606161U CN201520278343.4U CN201520278343U CN204606161U CN 204606161 U CN204606161 U CN 204606161U CN 201520278343 U CN201520278343 U CN 201520278343U CN 204606161 U CN204606161 U CN 204606161U
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Abstract
Deep water dynamic positioning semisubmersible platform is tuning to hang down and swings plate and subtract to shake to subtract and swing control system, tuning the hanging down relating to a kind of deepwater semisubmersible platform swings plate system, two platform column lower ends of semisubmersible platform deck homonymy and platform buoyancy tank consolidation, respectively immediately below the bottom, platform column of platform buoyancy tank install tuning hanging down and swing plate system, tuning hanging down is swung plate system and is comprised hanging down and swing plate, truss frame for connecting, returning spring, active variable damping device and limit spring.The utility model swings response according to sea situation or actual demand by regulating returning spring rigidity to realize respectively and controlling to hang down or realizes subtracting shaking control to rolling, pitching degree of freedom, dynamic positioning system (DPS) uncontrollable vertical surface degree of freedom motor imagination is controlled, to adapt to more severe sea situation.
Description
Technical field
The utility model relates to a kind of semisubmersible platform, particularly has the movable tuning vertical deep water dynamic positioning deepwater semisubmersible platform swinging plate about a kind of.
Background technology
Deepwater semisubmersible platform is large with its floor space, and carrying capacity is large, and building the advantages such as difficulty is low becomes one of important equipment of deepwater petroleum exploration exploitation.Along with the increase of the platform operations depth of water, the length of conventional mooring systems anchor chain and intensity all need to increase, and make the weight of whole anchoring system increase severely thus, and comparatively complicated when arranging anchor chain, and larger water surface area need be covered, affect navigation or the drilling operation of other boats and ships.For this reason, dynamic positioning system (DPS) does not increase with the increase of the depth of water due to its cost, is widely applied on deep water marine floating type works.Dynamic positioning system (DPS) goes out the restriction of force direction by thruster, only can control surging, swaying and yawing degree of freedom.Therefore adopt the deepwater semisubmersible platform of dynamic positioning system (DPS) hang down swing, the response of roll and pitch degree of freedom is more wayward.The effect of being surged, excessive roll and pitch response can reduce the air gap of platform, and then causes wave to the attack effect of platform lower deck, and has a negative impact to the traveling comfort of occupant and the safety of operation, affects production efficiency.In addition, excessive roll and pitch response can cause the damage of goods on platform.
Utility model content
For the problems referred to above, the purpose of this utility model adopts tuning hanging down to swing plate system, for deepwater semisubmersible platform provides extra restoring force or restoring moment, to improve the exercise performance of deepwater semisubmersible platform, adapts to more severe deep-sea sea situation.
For achieving the above object, the utility model provides tuning the hanging down of deep water dynamic positioning semisubmersible platform and swings plate and subtract to shake to subtract and swing control system, primarily of semisubmersible platform deck; 4 platform column; 2 are arranged in parallel, and the platform buoyancy tank of connecting platform column lower end; 8 full circle swinging thrusters and tuning the hanging down of 4 covers swing plate system composition.
Sentence symmetric points centered by the geometric centre of deck in the corner of bottom surface, semisubmersible platform deck, 4 platform column are installed; Be fixedly connected with platform buoyancy tank in two platform column lower ends of surge direction homonymy; In the bottom of platform buoyancy tank, be positioned at position immediately below each platform column, each installation subtracts tuning the hanging down of swinging control swing plate system for realizing subtracting shaking.
Each tuning hanging down is swung plate system and is mainly comprised 2 active variable damping devices, 1 returning spring, two flanges, 4 cover limit spring, hangs down and swing plate column, hang down to swinging plate girder diagonal brace and hang down and swing plate; Square hang down swing the upper surface corner place of plate and center respectively affixed hanging down swing plate column, be fixed with connection five five middle position of swinging plate column of hanging down and hang down and swing the horizontal truss of plate column; By horizontal truss, hang down swing plate, five hang down to swinging plate column and hang down and swing plate girder diagonal brace and form a rectangle joist body.
Be positioned at the vertical plate column upper end of swinging of swinging plate center of hanging down to be connected with the returning spring being fixed on platform buoyancy tank inside; Two vertical plate column upper ends of swinging that being positioned at hangs down swings plate diagonal positions are connected with the piston push rod of two the active variable damping devices being fixed on platform buoyancy tank inside respectively; Remain two to hang down and swing plate column upper end and be connected with the flange being fixed on platform buoyancy tank inside respectively, swing mounting limit spring on plate column the vertical of equidistant up and down of flange, limit spring is fixed on platform buoyancy tank.
8 full circle swinging thrusters are divided into four groups, often organize and comprise two full circle swinging thrusters, four groups of full circle swinging thrusters are arranged on respectively the two ends of platform buoyancy tank lower surface; Often organizing two thrusters all adopts dislocation to arrange.
Plate column and platform buoyancy tank consolidation can be swung by hanging down.
Semisubmersible platform deck can be rectangle, circle or oval.
The beneficial effects of the utility model are as follows:
8 full circle swinging thrusters, jointly for semisubmersible platform deck provides control effort or control torque, control the significantly slow-drift motion of the surging of semisubmersible platform deck, swaying and yawing degree of freedom.
Hang down and swing plate system under water for semisubmersible platform deck provides extra added mass and additional viscous damping, thus effectively can improve the vertical of semisubmersible platform and swing performance.
Reply rigidity to returning spring to regulate, make the vertical tuning ratio swinging the controlled degree of freedom of plate system and semisubmersible platform deck (rolling or pitching) be 1, can play to subtract to semisubmersible platform deck roll and pitch degree of freedom simultaneously and shake control action.
After the method optimizing combined by numerical modelling and experiment selects the damping of active variable damping device, semisubmersible platform deck construction Movement transmit can be consumed further to the kinetic energy swinging plate that hangs down, thus improve vertical control ability of swinging plate system.
Be installed on residue two root post swinging panel edges that hangs down and be provided with limit spring in platform, and in conjunction with active variable damping device, plate moving displacement amplitude can be swung to hanging down and retrain, reduce system cloud gray model space.
Tuning hanging down swings plate system when being in balance position, mounting flange on plate column is swung the vertical of two limit spring midways location, when tuning hang down swing plate system motion time flange contact limit spring afterwards with limit spring and swings plate system by compressive deformation for vertical secondary rigidity is provided, realize position-limiting action.
Accompanying drawing explanation
Fig. 1 is the utility model overall schematic.
Fig. 2 is that tuning hanging down swings plate system architecture schematic diagram.
Fig. 3 is the arrangement plan of full circle swinging thruster.
In figure: 1. semisubmersible platform deck; 2. platform column; 3. platform buoyancy tank; 4. full circle swinging thruster; 5. active variable damping device; 6. returning spring; 7. limit spring; 8. hang down and swing plate column; 9. hang down and swing plate girder diagonal brace; 10. hang down and swing plate; 11. flanges.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific description is done to the utility model
Deep water dynamic positioning semisubmersible platform is tuning to hang down and swings plate and subtract to shake to subtract and swing control system, primarily of semisubmersible platform deck 1; 4 platform column 2; 2 are arranged in parallel, and the platform buoyancy tank 3 of connecting platform column lower end; 8 full circle swinging thrusters 4 and 4 overlap tuning hanging down and swing plate system composition;
Sentence symmetric points centered by the geometric centre of deck in the corner of bottom surface, semisubmersible platform deck 1,4 platform column 2 are installed; Be fixedly connected with platform buoyancy tank 3 in two platform column 2 lower ends of surge direction homonymy; In the bottom of platform buoyancy tank 3, be positioned at position immediately below each platform column 2, each installation subtracts tuning the hanging down of swinging control swing plate system for realizing subtracting shaking.
Each tuning hanging down is swung plate system and is mainly comprised 2 active variable damping devices, 5,1 returning spring, 6, two flanges 11,4 and overlap limit spring 7, hang down and swing plate column 8, hang down to swinging plate girder diagonal brace 9 and hang down and swing plate 10; Square hang down swing the upper surface corner place of plate 10 and center respectively affixed hanging down swing plate column 8, be fixed with connection five five middle position of swinging plate column 8 of hanging down and hang down and swing the horizontal truss of plate column; By horizontal truss, hang down and swing plate 10, five and hang down to swinging plate column 8 and hang down and swing plate girder diagonal brace 9 and form a rectangle joist body.
Be positioned at vertical plate column 8 upper end of swinging of swinging plate 10 center of hanging down to be connected with the returning spring 6 being fixed on platform buoyancy tank 3 inside; Two vertical plate column 8 upper ends of swinging that being positioned at hangs down swings plate diagonal positions are connected with the piston push rod of two the active variable damping devices 5 being fixed on platform buoyancy tank 3 inside respectively; Remain two to hang down and swing plate column 8 upper end and be connected with the flange 11 being fixed on platform buoyancy tank 3 inside respectively, swing mounting limit spring 7 on plate column 8 the vertical of equidistant up and down of flange 11, limit spring 7 is fixed on platform buoyancy tank 3.
8 full circle swinging thrusters 4 are divided into four groups, often organize and comprise two full circle swinging thrusters, four groups of full circle swinging thrusters 4 are arranged on respectively the two ends of platform buoyancy tank 3 lower surface; Often organizing two thrusters all adopts dislocation to arrange.
Semisubmersible platform dynamic positioning system (DPS) adopts GPS to measure the dynamic respond of semisubmersible platform in real time, after comparing with the semisubmersible platform localizing objects preset, overhead control power needed for semisubmersible platform is calculated by the program Automatic Optimal preset by the computer control system that is positioned at semisubmersible platform deck 1 control cabin, what and then go out each full circle swinging thruster 4 by thrust allocation optimized program computation goes out force direction and control effort, thus realizes the control of the significantly slow-drift motion to semisubmersible platform surging, swaying and yawing degree of freedom.
According to sea situation and the control overflow in platform operations marine site, the length of returning spring 6 is regulated by installing clip, and then reach the object regulating returning spring 6 to reply rigidity, the vertical vertical degree of freedom tuning ratio that swings swinging plate system and semisubmersible platform is made to be 1, hanging down, it is exaggerated to swing plate 10 motion amplitude, whole hanging down is swung plate system and be can be semisubmersible platform and provide larger force of inertia and viscous damping force, thus effectively can improve the vertical of semisubmersible platform and swing performance.
After the damping of the method optimizing selection active variable damping device 5 combined by numerical modelling and experiment, vertical plate system of swinging can be made except self additional viscous damping also can be delivered to the vertical kinetic energy swinging plate 10 in consumption semisubmersible platform deck 1 further by active variable damping device 5.
Limit spring 7, can swing plate 10 moving displacement amplitude to hanging down and retrain, and reduces to hang down and swings the running space of plate system.
When tuning hang down swing plate system be in balance position time, mounting flange 11 on plate column is swung the vertical of upper and lower two limit spring 7 midways location, in order to avoid swinging the shock of plate motion to platform structure owing to hanging down, when tuning hang down swing plate system motion amplitude larger time, after flange 11 directly contacts with the limit spring 7 be fixed in buoyancy tank 3, limit spring 7 swings plate system by compressive deformation for hanging down provides secondary rigidity, realizes the position-limiting action swinging plate movement travel that hangs down.
Claims (3)
1. tuning the hanging down of deep water dynamic positioning semisubmersible platform is swung plate and is subtracted to shake to subtract and swing control system, it is characterized in that primarily of semisubmersible platform deck (1); 4 platform column (2); 2 are arranged in parallel, and the platform buoyancy tank (3) of connecting platform column lower end; 8 full circle swinging thrusters (4) and tuning the hanging down of 4 covers swing plate system composition;
Sentence symmetric points centered by the geometric centre of deck in the corner of semisubmersible platform deck (1) bottom surface, 4 platform column (2) are installed; Be fixedly connected with platform buoyancy tank (3) in two platform column (2) lower ends of surge direction homonymy; Platform buoyancy tank (3) bottom, be positioned at position immediately below each platform column (2), each installation subtracts tuning the hanging down of swinging control swing plate system for realizing subtracting shaking;
Each tuning hanging down is swung plate system and is mainly comprised 2 active variable damping devices (5), 1 returning spring (6), two flanges (11), 4 covers limit spring (7), hangs down and swing plate column (8), hang down and swing plate girder diagonal brace (9) and vertically swing plate (10); Square hang down swing the upper surface corner place of plate (10) and center respectively affixed hanging down swing plate column (8), be fixed with connection five five middle position of swinging plate column (8) of hanging down and hang down and swing the horizontal truss of plate column; By horizontal truss, hang down swing plate (10), five hang down and swing plate column (8) and vertical swing plate girder diagonal brace (9) and form a rectangle joist body;
Being positioned at the vertical vertical returning spring (6) swinging plate column (8) upper end inner with being fixed on platform buoyancy tank (3) swinging plate (10) center to be connected; Two vertical piston push rods swinging two inner with being fixed on platform buoyancy tank (3) respectively actives variable damping device (5) of plate column (8) upper end that being positioned at hangs down swings plate diagonal positions are connected; Remain two flanges (11) swinging plate column (8) upper end inner with being fixed on platform buoyancy tank (3) respectively that hang down to be connected, swing the upper mounting limit spring (7) of plate column (8) the vertical of equidistant up and down of flange (11), limit spring (7) is fixed on platform buoyancy tank (3);
8 full circle swinging thrusters (4) are divided into four groups, often organize and comprise two full circle swinging thrusters, four groups of full circle swinging thrusters (4) are arranged on respectively the two ends of platform buoyancy tank (3) lower surface; Often organizing two thrusters all adopts dislocation to arrange.
2. according to claim 1ly swinging plate and subtract to shake to subtract for tuning the hanging down of deep hydrodynamic force location semisubmersible platform and swing control system, it is characterized in that swinging plate column (8) and platform buoyancy tank (3) consolidation by hanging down.
3. according to claim 1ly swing plate and subtract to shake to subtract for tuning the hanging down of deep water dynamic positioning semisubmersible platform and swing control system, it is characterized in that semisubmersible platform deck is rectangle, circle or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520278343.4U CN204606161U (en) | 2015-04-30 | 2015-04-30 | Deep water dynamic positioning semisubmersible platform is tuning to hang down and swings plate and subtract to shake to subtract and swing control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520278343.4U CN204606161U (en) | 2015-04-30 | 2015-04-30 | Deep water dynamic positioning semisubmersible platform is tuning to hang down and swings plate and subtract to shake to subtract and swing control system |
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| Publication Number | Publication Date |
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| CN204606161U true CN204606161U (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520278343.4U Withdrawn - After Issue CN204606161U (en) | 2015-04-30 | 2015-04-30 | Deep water dynamic positioning semisubmersible platform is tuning to hang down and swings plate and subtract to shake to subtract and swing control system |
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| CN (1) | CN204606161U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890830A (en) * | 2015-04-30 | 2015-09-09 | 大连理工大学 | Control system for stabilizing and reducing swing through tuning heaving plate of deep-water dynamic-positioning semi-submersible platform |
| CN106143826A (en) * | 2016-08-05 | 2016-11-23 | 上海理工大学 | A kind of fractal open-work heave plate |
-
2015
- 2015-04-30 CN CN201520278343.4U patent/CN204606161U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890830A (en) * | 2015-04-30 | 2015-09-09 | 大连理工大学 | Control system for stabilizing and reducing swing through tuning heaving plate of deep-water dynamic-positioning semi-submersible platform |
| CN106143826A (en) * | 2016-08-05 | 2016-11-23 | 上海理工大学 | A kind of fractal open-work heave plate |
| CN106143826B (en) * | 2016-08-05 | 2018-01-16 | 上海理工大学 | One kind divides shape open-work heave plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20171027 |
|
| AV01 | Patent right actively abandoned |