CN108630086A - A kind of floating platform simulating experimental system - Google Patents

A kind of floating platform simulating experimental system Download PDF

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Publication number
CN108630086A
CN108630086A CN201810576965.3A CN201810576965A CN108630086A CN 108630086 A CN108630086 A CN 108630086A CN 201810576965 A CN201810576965 A CN 201810576965A CN 108630086 A CN108630086 A CN 108630086A
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CN
China
Prior art keywords
platform
rod
universal joint
freedom
degree
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Pending
Application number
CN201810576965.3A
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Chinese (zh)
Inventor
唐达
陈兢
王德宇
金禄渊
岳前进
王宏伟
谢斌
王世圣
冯加果
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Dalian University of Technology
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Dalian University of Technology
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Priority to CN201810576965.3A priority Critical patent/CN108630086A/en
Publication of CN108630086A publication Critical patent/CN108630086A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B25/00Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes

Abstract

The present invention provides a kind of floating platform simulating experimental system, belongs to Offshore Platform Engineering technical field.The system includes platform connection unit, upper mounting plate and lower platform;It is connected by platform connection unit between upper mounting plate and lower platform, between upper mounting plate and peripheral frame.The platform connection unit includes rotation axis, the first candan universal joint, short connecting rod, heave degree of freedom spring, long connecting rod and the second candan universal joint;Rotation axis is as the node being connected between platform connection unit and platform, for providing the degree of freedom rotated around vertical plane;First candan universal joint and the second candan universal joint are used to provide two rotary freedoms on horizontal plane.Upper mounting plate has six-freedom degree, rolling, pitching, yawing, swaying, surging, heave.Lower platform is as suspension, it may have six-freedom degree.The mechanical structure that a kind of floating platform and its accessory structure simulating experimental system are provided, to solve the problems, such as the real data in studying ocean platform non-destructive tests.

Description

A kind of floating platform simulating experimental system
Technical field
The invention belongs to Offshore Platform Engineering technical fields, are related to a kind of floating platform simulating experimental system.
Background technology
Marine floating type platform is the critical facility of offshore oil and gas exploitation, due to local environment complexity, and for a long time by stormy waves The influence of stream etc., platform and accessory structure thereon are easy to happen damage accident, cause economic loss and casualties.So right The damage research of Yu Haiyang platform is of great significance, but ocean platform is bulky, and is difficult to flat in working in place Platform and its accessory structure carry out simulation injury experiment to obtain data.
In this context, the present invention designs a set of simulating experimental system for being directed to floating platform and its suspended structure.This is System has suspended structure and multiple hinge joints so that system has multiple degree of freedom, can simulate ocean platform and attached thereon The motion conditions of structure.This system has flexibility, can be imitated multiple structural forms by way of dismantling, combining Very.
Invention content
It is an object of the present invention to provide the mechanical structures of a kind of floating platform and its accessory structure simulating experimental system, to solve Real data problem in studying ocean platform non-destructive tests.
Technical scheme of the present invention:
A kind of floating platform simulating experimental system, including platform connection unit, upper mounting plate 6 and lower platform 7;Upper mounting plate 6 with It is connected by platform connection unit between lower platform 7, between upper mounting plate 6 and peripheral frame;
The platform connection unit includes rotation axis 8, the first candan universal joint 9, short connecting rod 10, heave degree of freedom bullet Spring 11, long connecting rod 12 and the second candan universal joint 13;Rotation axis 8 is as the section being connected between platform connection unit and platform Point, for providing the degree of freedom rotated around vertical plane;8 lower end of rotation axis is sequentially connected the first candan universal joint 9, short connecting rod 10, heave degree of freedom spring 11, long connecting rod 12 and the second candan universal joint 13;Upper end is connect with peripheral frame or another platform The second candan universal joint 13 in unit is connected;First candan universal joint 9 and the second candan universal joint 13 are for providing horizontal plane On two rotary freedoms;
The degree of freedom that the offer vertical direction of heave degree of freedom spring 11 moves up and down, including top fixing device 1, Upper spring 2, lower section connecting rod 3, lower spring 4 and lower section fixing device 5;Wherein, top fixing device 1 is to have female lid Body structure is fixedly connected with spring structure on cover body structure;Lower section fixing device 5 is cylindrical structure, and the upper end is equipped with and top The external screw thread of 1 screw-internal thread fit of fixing device, lower end are equipped with hatch frame;The upper end of top fixing device 1 and short connecting rod phase Even, lower end is connect with lower section fixing device 5 by screw-thread fit, forms the cavity of lower openings;It is arranged in cavity below T-type and connects Extension bar 3, body of rod lower end are equipped with external screw thread, and upper spring 2 is placed in top, and body of rod housing sets spring 4, and with long connecting rod phase Even.
The short connecting rod 10 and long connecting rod 11 is the hollow stem for all having up and down helicitic texture.
First candan universal joint 9 and the second candan universal joint 13 is made of two mutually perpendicular bearings, Upper and lower side is designed with screw thread.
The upper mounting plate 6 has six-freedom degree:Rolling, pitching, yawing, swaying, surging, heave.
The lower platform 7 is used as suspension, it may have six-freedom degree:Rolling, pitching, yawing, swaying, surging, Heave.
Beneficial effects of the present invention:This system has suspended structure and multiple hinge joints so that system has multiple freedom Degree, can simulate ocean platform and the thereon motion conditions of accessory structure.This system has flexibility, can pass through dismounting, group The mode of conjunction, emulates multiple structural forms.
Description of the drawings
Fig. 1 is the overall structure figure of floating platform simulating experimental system.
Fig. 2 is top and the internal structure schematic diagram for heaving degree of freedom spring.
Fig. 3 is lower section fixture structure schematic diagram.
In figure:1 top fixing device;Spring on 2;3 lower section connecting rods;4 times springs;5 lower section fixing devices;6 upper mounting plates; 7 lower platforms;8 rotation axis;9 first candan universal joints;10 short connecting rods;11 heave degree of freedom springs;12 long connecting rods;13 second Candan universal joint.
Specific implementation mode
Technical scheme of the present invention is further detailed below in conjunction with specific embodiments and the drawings.
As shown in Figure 1, a kind of floating platform simulating experimental system, including platform connection unit, upper mounting plate 6 and lower platform 7; It is connected by platform connection unit between upper mounting plate 6 and lower platform 7, between upper mounting plate 6 and peripheral frame;
The platform connection unit includes rotation axis 8, the first candan universal joint 9, short connecting rod 10, heave degree of freedom bullet Spring 11, long connecting rod 12 and the second candan universal joint 13;Rotation axis 8 is as the section being connected between platform connection unit and platform Point, for providing the degree of freedom rotated around vertical plane;8 lower end of rotation axis is sequentially connected the first candan universal joint 9, short connecting rod 10, heave degree of freedom spring 11, long connecting rod 12 and the second candan universal joint 13;Upper end is connect with peripheral frame or another platform The second candan universal joint 13 in unit is connected;First candan universal joint 9 and the second candan universal joint 13 are for providing horizontal plane On two rotary freedoms;
The degree of freedom that the offer vertical direction of heave degree of freedom spring 11 moves up and down, including top fixing device 1, Upper spring 2, lower section connecting rod 3, lower spring 4 and lower section fixing device 5;Wherein, top fixing device 1 is to have female lid Body structure is fixedly connected with spring structure on cover body structure;Lower section fixing device 5 is cylindrical structure, and the upper end is equipped with and top The external screw thread of 1 screw-internal thread fit of fixing device, lower end are equipped with hatch frame;The upper end of top fixing device 1 and short connecting rod phase Even, lower end is connect with lower section fixing device 5 by screw-thread fit, forms the cavity of lower openings;It is arranged in cavity below T-type and connects Extension bar 3, body of rod lower end are equipped with external screw thread, and upper spring 2 is placed in top, and body of rod housing sets spring 4, and with long connecting rod phase Even.
The upper end of the rotation axis 8 is internal thread structure, can be threadedly coupled with outer framework by bolt, rotation axis 8 lower end is external thread structure.
First candan universal joint, 9 and second candan universal joint, 13 both ends are all internal thread structure.
The short connecting rod 10 is the hollow-core construction that both ends are all internal thread, the lower end of upper end and the first candan universal joint 9 It is threadedly coupled by a short stud.
The both ends of the heave degree of freedom spring 11 are all external screw thread.
The long connecting rod 12 is the hollow-core construction that both ends are all internal thread.
Second candan universal joint, 13 upper end is threadedly coupled with the lower end of long connecting rod 12 by a short stud.
Upper mounting plate 6 and four vertex of lower platform 7 are fixed using stud, and both ends all have external screw thread.Second cross The lower end of universal joint 13 is threadedly coupled with the upper end of the upper end of upper mounting plate 6 or lower platform 7.
Technical solution more than taking, the floating platform simulating experimental system have the characteristics that:
1, according to ocean platform multiple degrees of freedom the upper mounting plate of the characteristics of, the experimental system have rolling, pitching, yawing, cross It swings, surging, heave six-freedom degree, lower platform is as a suspension, it may have six-freedom degree.
2, each structure is replaceable, such as replaces the spring of different coefficient of elasticity, or fixed a certain rotational structure carries out Simulation damage, can carry out actual injury experiment.
3, it can be re-assemblied according to the practical structures of no ocean platform, such as change connecting rod into chain.
4, the monitoring that sensor carries out analogue system posture can be installed additional in each structure, such as in each bar peace Gyro sensor is placed on platform, carries out the high frequency acquisition of inclination angle and acceleration.
5, using the mating software of floating platform simulating experimental system, the real-time of inclination angle and acceleration information may be implemented Acquisition, display and storage, to carry out subsequent analysis.

Claims (8)

1. a kind of floating platform simulating experimental system, which is characterized in that including platform connection unit, upper mounting plate (6) and lower platform (7);Between upper mounting plate (6) and lower platform (7), upper mounting plate (6) is connected by platform connection unit between peripheral frame;
The platform connection unit includes rotation axis (8), the first candan universal joint (9), short connecting rod (10), heave degree of freedom Spring (11), long connecting rod (12) and the second candan universal joint (13);Rotation axis (8) is used as between platform connection unit and platform Connected node, for providing the degree of freedom rotated around vertical plane;Rotation axis (8) lower end is sequentially connected the first candan universal joint (9), short connecting rod (10), heave degree of freedom spring (11), long connecting rod (12) and the second candan universal joint (13);Upper end with it is outer The second candan universal joint (13) enclosed in holder or another platform connection unit is connected;First candan universal joint (9) and the 20th Word universal joint (13) is used to provide two rotary freedoms on horizontal plane;
The heave degree of freedom spring provides the degree of freedom that vertical direction moves up and down, including top fixing device (1), upper bullet Spring (2), lower section connecting rod (3), lower spring (4) and lower section fixing device (5);Wherein, top fixing device (1) is with interior spiral shell The cover body structure of line is fixedly connected with spring structure on cover body structure;Lower section fixing device (5) is cylindrical structure, and the upper end is set There are the external screw thread with top fixing device (1) screw-internal thread fit, lower end to be equipped with hatch frame;The upper end of top fixing device (1) It is connected with short connecting rod, lower end is connect with lower section fixing device (5) by screw-thread fit, and the cavity of lower openings is formed;Cavity Connecting rod (3) below middle setting T-type, body of rod lower end are equipped with external screw thread, and upper spring (2) is placed in top, and body of rod housing is set Spring (4), and be connected with long connecting rod.
2. a kind of floating platform simulating experimental system according to claim 1, which is characterized in that the short connecting rod (10) and long connecting rod (11) is the hollow stem for all having up and down helicitic texture.
3. a kind of floating platform simulating experimental system according to claim 1 or 2, which is characterized in that described the 10th Word universal joint (9) and the second candan universal joint (13) are made of two mutually perpendicular bearings, and upper and lower side is designed with screw thread.
4. a kind of floating platform simulating experimental system according to claim 1 or 2, which is characterized in that the upper mounting plate (6) there is six-freedom degree:Rolling, pitching, yawing, swaying, surging, heave.
5. a kind of floating platform simulating experimental system according to claim 3, which is characterized in that the upper mounting plate (6) With six-freedom degree:Rolling, pitching, yawing, swaying, surging, heave.
6. a kind of floating platform simulating experimental system according to claim 1,2 or 5, which is characterized in that described is lower flat Platform (7) is used as suspension, it may have six-freedom degree:Rolling, pitching, yawing, swaying, surging, heave.
7. a kind of floating platform simulating experimental system according to claim 3, which is characterized in that the lower platform (7) As suspension, it may have six-freedom degree:Rolling, pitching, yawing, swaying, surging, heave.
8. a kind of floating platform simulating experimental system according to claim 4, which is characterized in that the lower platform (7) As suspension, it may have six-freedom degree:Rolling, pitching, yawing, swaying, surging, heave.
CN201810576965.3A 2018-06-04 2018-06-04 A kind of floating platform simulating experimental system Pending CN108630086A (en)

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Application Number Priority Date Filing Date Title
CN201810576965.3A CN108630086A (en) 2018-06-04 2018-06-04 A kind of floating platform simulating experimental system

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101016971A (en) * 2006-12-30 2007-08-15 浙江大学 Master-slave mode two-in-parallel twelve degree of freedom generalized force adjustment loading mechanism
CN204428844U (en) * 2015-02-10 2015-07-01 深圳鹰飞乐文化旅游科技有限公司 Suspension type Six-freedom dynamic platform
CN105082172A (en) * 2015-06-17 2015-11-25 北京交通大学 Parallel three-freedom-degree flexible mechanical wrist based on series elastic actuators
CN105546022A (en) * 2016-02-22 2016-05-04 江苏科技大学 Passive ship-based equipment impact-resistant platform based on six-degree-of-freedom parallel mechanism
CN107037823A (en) * 2017-06-08 2017-08-11 中国海洋大学 A kind of experiment porch and its experimental method for being used to simulate ocean platform motion compensation
EP3249632A1 (en) * 2016-05-26 2017-11-29 E2M Technologies B.V. A movement platform system
CN107478448A (en) * 2017-09-13 2017-12-15 中国铁道科学研究院 Circuit gauge detects dynamic simulation test system and method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101016971A (en) * 2006-12-30 2007-08-15 浙江大学 Master-slave mode two-in-parallel twelve degree of freedom generalized force adjustment loading mechanism
CN204428844U (en) * 2015-02-10 2015-07-01 深圳鹰飞乐文化旅游科技有限公司 Suspension type Six-freedom dynamic platform
CN105082172A (en) * 2015-06-17 2015-11-25 北京交通大学 Parallel three-freedom-degree flexible mechanical wrist based on series elastic actuators
CN105546022A (en) * 2016-02-22 2016-05-04 江苏科技大学 Passive ship-based equipment impact-resistant platform based on six-degree-of-freedom parallel mechanism
EP3249632A1 (en) * 2016-05-26 2017-11-29 E2M Technologies B.V. A movement platform system
CN107037823A (en) * 2017-06-08 2017-08-11 中国海洋大学 A kind of experiment porch and its experimental method for being used to simulate ocean platform motion compensation
CN107478448A (en) * 2017-09-13 2017-12-15 中国铁道科学研究院 Circuit gauge detects dynamic simulation test system and method

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Application publication date: 20181009

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