CN112609658A - Novel underwater energy dissipation and vibration reduction device comprising retractable wing plates - Google Patents
Novel underwater energy dissipation and vibration reduction device comprising retractable wing plates Download PDFInfo
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- CN112609658A CN112609658A CN202011524620.7A CN202011524620A CN112609658A CN 112609658 A CN112609658 A CN 112609658A CN 202011524620 A CN202011524620 A CN 202011524620A CN 112609658 A CN112609658 A CN 112609658A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
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Abstract
The invention provides a novel underwater energy dissipation and vibration reduction device comprising a retractable wing plate, and belongs to the field of vibration control of ocean floating structures. The energy dissipation and vibration reduction device comprises a main rod shaft, a wedge-shaped block, a roller, a support rod, a connecting shaft, a spring, an outer cylinder, a guide hole channel, a wing plate, a cover plate and a bottom floating plate. The bottom floating plate of the device keeps the position of the outer cylinder basically unchanged, and the support rod and the roller are always kept horizontal under the action of the guide pore channel; when the upper floating structure connected with the upper floating structure generates vertical vibration, the main rod shaft and the wedge block are driven to generate vertical motion, so that the roller rolls along the inclined surface of the wedge block, and finally the wing plate connected with the support rod performs retraction and release motion in water under the action of the support rod and the spring, and the vibration reduction and energy consumption are realized through the counterforce given by the water. The invention has novel structure, is suitable for novel floating ocean structures, can flexibly adjust the energy consumption efficiency by changing the slope of the inclined plane of the wedge block according to the design requirement, and has good application prospect.
Description
Technical Field
The invention relates to a novel underwater energy dissipation and vibration reduction device comprising retractable wing plates, which is mainly applied to vibration control of an ocean platform and belongs to the technical field of structural vibration control.
Background
With the rapid development of the world economy, the demand of human beings on oil and gas energy is also increasing; the ocean has wide area and rich resources, and if the ocean can be reasonably developed, the problem of the requirement of human beings on energy can be greatly solved. At present, the exploration and development of marine resources by human beings extend from shallow sea to deep sea, and the environment for exploiting the marine resources in deep sea is more complex; how to establish a stable and safe ocean platform is the first problem that people need to solve when exploiting deep sea resources. The deep sea is greatly different from the offshore platform which is generally a traditional fixed type offshore platform, and the deep sea is generally a floating type offshore platform.
The floating ocean platform structure is characterized in that a platform structure floating in seawater is anchored on the seabed through guys or anchor chains, and the structure is suitable for the sea area with deep water depth. At present, the research on floating ocean platforms in academic circles is not as comprehensive as that of the conventional ocean platform, but the natural environment of the floating ocean platform in service in deep sea environment is still worse. In the life cycle of the deep-sea floating ocean platform, the deep-sea floating ocean platform is inevitably damaged or even destroyed by natural disasters such as wind, wave, stream and earthquake, and huge life and property losses are caused. Therefore, the research on how to reduce the vibration of the floating ocean platform structure under the action of disasters becomes a hot problem which is concerned by researchers.
At present, the methods for improving the disaster resistance of the structure, which are generally recognized by academia and engineering, mainly include two methods: one is to improve the disaster resistance and reduce the vibration of the structure under the action of dynamic disasters from the design of the structure; one is to control the vibration of the structure by arranging an external dissipative vibration damping device. The structural disaster-resistant design related to the first method is developed more mature, and the second structural vibration control method is simpler, more convenient and more efficient and has wide application prospects. However, at present, research and development work of an energy dissipation and vibration reduction device of a novel structural system, namely a deep-sea floating ocean platform, is still in a starting stage, and how to provide a safe and efficient energy dissipation and vibration reduction device of a deep-sea floating ocean platform structure is a problem that needs to be solved urgently by a person skilled in the art.
Disclosure of Invention
The invention aims to develop a novel underwater energy-consumption vibration damper comprising a retractable wing plate, which mainly depends on the counterforce given by water to realize vibration damping and energy consumption when the wing plate is retracted and extended in water, and is an underwater energy-consumption vibration damper with a novel structure.
The technical scheme of the invention is as follows:
a novel underwater energy dissipation and vibration reduction device comprising retractable wing plates comprises a main rod shaft 1, wedge-shaped blocks 2, rollers 3, support rods 4, a connecting shaft 5, springs 6, an outer cylinder 7, a guide hole 8, wing plates 9, a cover plate 10 and a bottom floating plate 11;
the main rod shaft 1 of the novel underwater energy dissipation and vibration reduction device is a cuboid rod shaft, and wedge blocks 2 are arranged in the middle of four surfaces of the main rod shaft; the wedge-shaped block 2 is rough in surface and fixedly connected with the main rod shaft 1; the roller 3 is connected with the support rod 4 in series through a connecting shaft 5, and the rolling surface of the roller 3 is a rough surface; the roller 3 is placed in the middle of the inclined surface of the wedge block 2 and is in close contact with the wedge plate 2; the outer cylinder 7 is a hollow cylinder, four guide pore channels 8 are arranged on the side surface of the outer cylinder 7, and the arrangement positions of the guide pore channels 8 correspond to the positions of the support rods 4 extending out of the outer cylinder 7; the supporting rod 4 penetrates through a guide pore channel 8 arranged on the outer cylinder 7 and extends out of the outer cylinder, and a wing plate 9 is arranged at the tail end of the supporting rod 4, wherein the supporting rod 4 is always kept horizontal under the action of the guide pore channel 8; the support rod 4 is connected to the central position of the wing plate 9, and the support rod 4 is fixedly connected with the wing plate 9; the cover plates 10 are respectively arranged at the upper end and the lower end of the outer cylinder 7 and are respectively fixedly connected with the outer cylinder 7, and the cover plates 10 are provided with holes for the main rod shaft 1 to pass through; the spring 6 is horizontally arranged between the connecting shaft 5 and the outer cylinder 7, one end of the spring is connected with the connecting shaft 5, the other end of the spring is connected with the inner wall of the outer cylinder 7, and the spring 6 mainly has the function that when the wedge-shaped block 2 moves downwards, the roller 3 is always in close contact with the inclined surface of the wedge-shaped plate 2 through the elastic force provided by the spring 6; when the wedge-shaped plate 2 is installed, the short edge is arranged above, and the long edge is arranged below; the connecting shaft 5 is long, a bulge is arranged in the middle position behind the roller 3 and the support rod 4 which are connected in series, the roller 3 and the support rod 4 are prevented from sliding on the connecting shaft 5, two ends of the connecting shaft 5 extend, and the tail end of the connecting shaft is connected with a spring 6; the bottom floating plate 11 is fixedly connected with the bottom of the outer cylinder 7, and can ensure that the outer cylinder 7 is always in a floating state and the position is basically unchanged, so that the whole device can achieve expected energy consumption effect when the upper floating ocean platform moves up and down.
The invention has the beneficial effects that: when the device is used for carrying out retraction and release movement in water by depending on wing plates, the device realizes vibration reduction and energy consumption by the counterforce given by the water when the wing plates are retracted and released, and has stable and efficient energy consumption capability; the invention can adjust the slope of the wedge block according to the actual situation to realize different energy consumption effects. The larger the slope of the inclined plane of the wedge-shaped block is, namely the larger tan theta is, the larger the retraction amplitude of the wing plate in water caused by the up-and-down movement of the main rod shaft is; thus if it is desired to increase the energy efficiency of the device of the invention, this can be achieved by increasing the slope of the wedge.
Drawings
Fig. 1 is a schematic top-view cross-sectional structural diagram of a novel underwater energy dissipation and vibration reduction device including retractable wing plates according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a section a-a of a novel underwater energy dissipation and vibration reduction device including retractable wing plates according to an embodiment of the present invention;
fig. 3 is an installation schematic diagram of a novel underwater energy dissipation and vibration reduction device including retractable wings, provided by an embodiment of the present invention;
in the figure: the device comprises a main rod shaft 1, a wedge-shaped block 2, rollers 3, a support rod 4, a connecting shaft 5, a spring 6, an outer cylinder 7, a guide pore channel 8, a wing plate 9, a cover plate 10 and a bottom floating plate 11.
Detailed Description
In order to make the objects, features and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in the figure, the novel underwater energy dissipation and vibration reduction device comprising the retractable wing plates comprises a main rod shaft 1, wedge blocks 2, rollers 3, supporting rods 4, a connecting shaft 5, springs 6, an outer cylinder 7, a guide pore channel 8, wing plates 9, a cover plate 10 and a bottom floating plate 11; the main rod shaft 1 of the energy dissipation and vibration reduction device is a cuboid rod shaft, and wedge blocks 2 are arranged in the middle of four surfaces of the main rod shaft; the wedge-shaped block 2 is rough in surface and fixedly connected with the main rod shaft 1; the roller 3 is connected with the support rod 4 in series through a connecting shaft 5, and the rolling surface of the roller 3 is a rough surface; the roller 3 is placed in the middle of the inclined surface of the wedge block 2 and is in close contact with the wedge plate 2; the outer cylinder 7 is in a hollow cylinder shape, four guide pore channels 8 are arranged on the side surface of the outer cylinder 7, and the arrangement positions of the guide pore channels 8 correspond to the positions of the support rods 4 extending out of the outer cylinder 7; the supporting rod 4 penetrates through a guide pore channel 8 arranged on the outer cylinder 7 and extends out of the outer cylinder, and a wing plate 9 is arranged at the tail end of the supporting rod 4, wherein the supporting rod 4 is always kept horizontal under the action of the guide pore channel 8; the support rod 4 is connected to the central position of the wing plate 9, and the support rod 4 is fixedly connected with the wing plate 9; the cover plates 10 are respectively arranged at the upper end and the lower end of the outer cylinder 7 and are respectively fixedly connected with the outer cylinder 7, and the cover plates 10 are provided with holes for the main rod shaft 1 to pass through; the spring 6 is horizontally arranged between the connecting shaft 5 and the outer barrel 7, one end of the spring is connected with the connecting shaft, the other end of the spring is connected with the inner wall of the outer barrel, and the spring 6 mainly has the effect that when the wedge-shaped block 2 moves downwards, the roller 3 can be always in close contact with the inclined surface of the wedge-shaped plate 2 due to the elastic force of the spring 6. When the wedge-shaped plate 2 is installed, the short edge is arranged above, and the long edge is arranged below; the connecting shaft 5 is long, a bulge is arranged in the middle position behind the roller 3 and the support rod 4 which are connected in series, the roller 3 and the support rod 4 are prevented from sliding on the connecting shaft, then the two ends of the connecting shaft extend, and the tail end of the connecting shaft is connected with a spring 6; the bottom floating plate 11 is fixedly connected with the bottom of the outer barrel 7, and can ensure that the outer barrel is always in a floating state and the position is basically unchanged, so that the whole device can realize the expected energy consumption effect.
The energy dissipation and vibration reduction device has good energy dissipation performance, when an external structure connected with the energy dissipation and vibration reduction device generates vertical vibration, the main rod shaft 1 and the wedge-shaped block 2 are driven to generate vertical motion, and the outer cylinder 7 is fixed, so that the support rod 4 and the roller 3 are always kept horizontal and the support rod and the roller are kept horizontal under the action of the guide hole channel 8The vertical position does not change, so when the structure vibrates, the roller 3 rolls along the inclined surface of the wedge-shaped block 2, the supporting rod 4 is driven to move horizontally and axially, the wing plates 9 connected with the supporting rod 4 under the action of the supporting rod 4 and the spring 6 are also retracted and extended in water, and the reaction force given by the water is used for realizing vibration reduction and energy consumption in the retracting and extending movement of the wing plates 9. Assuming that the inclination angle of the wedge 2 is theta, the distance when the main shaft 1 moves up or down is d1The four-way wing 9 is moved outwardly or inwardly by a distance d2＝d1tanθ。
Finally, the description is as follows: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; the technical solutions described in the foregoing embodiments can be modified by those skilled in the art, or some technical features of the embodiments can be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (1)
1. A novel underwater energy dissipation and vibration reduction device comprising retractable wing plates is characterized by comprising a main rod shaft (1), wedge blocks (2), rollers (3), support rods (4), a connecting shaft (5), springs (6), an outer cylinder (7), a guide hole channel (8), wing plates (9), a cover plate (10) and a bottom floating plate (11);
the main rod shaft (1) of the novel underwater energy dissipation and vibration reduction device is a cuboid rod shaft, and wedge blocks (2) are arranged in the middles of four surfaces of the main rod shaft; the wedge-shaped block (2) is rough in surface and fixedly connected with the main rod shaft (1); the roller (3) is connected with the support rod (4) in series through a connecting shaft (5), and the rolling surface of the roller (3) is a rough surface; the roller (3) is placed in the middle of the inclined surface of the wedge-shaped block (2) and is in close contact with the wedge-shaped plate (2); the outer cylinder (7) is a hollow cylinder, four guide pore channels (8) are arranged on the side surface of the outer cylinder (7), and the arrangement positions of the guide pore channels (8) correspond to the positions of the support rods (4) extending out of the outer cylinder (7); the supporting rod (4) penetrates through a guide pore channel (8) arranged on the outer cylinder (7) and extends out of the outer cylinder, and a wing plate (9) is arranged at the tail end of the supporting rod (4), wherein the supporting rod (4) is always kept horizontal under the action of the guide pore channel (8); the support rod (4) is connected to the central position of the wing plate (9), and the support rod (4) is fixedly connected with the wing plate (9); the cover plates (10) are respectively arranged at the upper end and the lower end of the outer cylinder (7) and are respectively fixedly connected with the outer cylinder (7), and the cover plates (10) are provided with holes for the main rod shaft (1) to pass through; the spring (6) is horizontally arranged between the connecting shaft (5) and the outer cylinder (7), one end of the spring is connected with the connecting shaft (5), the other end of the spring is connected to the inner wall of the outer cylinder (7), and the spring (6) has the main function that when the wedge-shaped block (2) moves downwards, the elastic force provided by the spring (6) ensures that the roller (3) is always in close contact with the inclined plane of the wedge-shaped plate (2); when the wedge-shaped plate (2) is installed, the short edge is arranged above, and the long edge is arranged below; the connecting shaft (5) is longer, a bulge is arranged in the middle position behind the roller (3) and the supporting rod (4) which are connected in series, the roller (3) and the supporting rod (4) are prevented from sliding on the connecting shaft (5), two ends of the connecting shaft (5) extend, and the tail end of the connecting shaft is connected with a spring (6); the bottom floating plate (11) is fixedly connected with the bottom of the outer cylinder (7), and can ensure that the outer cylinder (7) is always in a floating state and the position is basically unchanged, so that the whole device can realize the expected energy consumption effect when the upper floating ocean platform moves up and down;
the novel underwater energy dissipation vibration damper has good energy dissipation performance, when an external structure connected with the novel underwater energy dissipation vibration damper generates vertical vibration, a main rod shaft (1) and a wedge block (2) are driven to generate vertical motion, an outer cylinder (7) is fixed, under the action of a guide hole channel (8), a support rod (4) and a roller (3) are always kept horizontal, and the vertical position of the support rod and the roller is not changed, so that when the structure vibrates, the roller (3) rolls along the inclined surface of the wedge block (2) to further drive the support rod (4) to generate horizontal axial motion, a wing plate (9) connected with the support rod (4) under the action of the support rod (4) and a spring (6) also performs retraction and release motion in water, and damping energy dissipation is realized by the reactive force given by water when the wing plate (9) performs retraction and release motion; assuming that the inclination angle of the wedge block (2) is theta, when the main shaft (1) moves upwards or downwards, the distance is d1When the wing plates (9) in four directions move outwards or inwards by a distance d2＝d1tanθ。
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011524620.7A CN112609658B (en) | 2020-12-22 | 2020-12-22 | Underwater energy consumption vibration reduction device comprising retractable wing plate |
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| CN202011524620.7A CN112609658B (en) | 2020-12-22 | 2020-12-22 | Underwater energy consumption vibration reduction device comprising retractable wing plate |
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| CN112609658A true CN112609658A (en) | 2021-04-06 |
| CN112609658B CN112609658B (en) | 2024-06-14 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147428A (en) * | 2013-03-08 | 2013-06-12 | 上海大学 | Protection and damping device for ocean platform |
| CN203755279U (en) * | 2014-03-11 | 2014-08-06 | 青岛理工大学 | Self-resetting ocean platform based on tuned mass damper and swing wall |
| KR20140120152A (en) * | 2013-04-02 | 2014-10-13 | 에스티엑스조선해양 주식회사 | Floating Platform of Floating Offshore Wind Turbine |
| CN205775807U (en) * | 2016-06-29 | 2016-12-07 | 湖南科技大学 | Energy consumer is inhaled from opening displacement type multi-stage water power |
| CN107268821A (en) * | 2017-06-16 | 2017-10-20 | 山东大学 | A kind of multistage mixed type dissipative damping device |
| CN107762229A (en) * | 2017-11-21 | 2018-03-06 | 山东大学 | The current vortex dissipative damping device of controlled level and torsional direction |
| CN108018841A (en) * | 2016-10-28 | 2018-05-11 | 龙口中集来福士海洋工程有限公司 | Mobile ocean pasture device |
| CN109914372A (en) * | 2019-04-25 | 2019-06-21 | 青岛理工大学 | Self-resetting offshore jacket platforms structural system based on built-in swing column |
| CN214423329U (en) * | 2020-12-22 | 2021-10-19 | 大连理工大学 | Novel underwater energy dissipation and vibration reduction device comprising retractable wing plates |
-
2020
- 2020-12-22 CN CN202011524620.7A patent/CN112609658B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147428A (en) * | 2013-03-08 | 2013-06-12 | 上海大学 | Protection and damping device for ocean platform |
| KR20140120152A (en) * | 2013-04-02 | 2014-10-13 | 에스티엑스조선해양 주식회사 | Floating Platform of Floating Offshore Wind Turbine |
| CN203755279U (en) * | 2014-03-11 | 2014-08-06 | 青岛理工大学 | Self-resetting ocean platform based on tuned mass damper and swing wall |
| CN205775807U (en) * | 2016-06-29 | 2016-12-07 | 湖南科技大学 | Energy consumer is inhaled from opening displacement type multi-stage water power |
| CN108018841A (en) * | 2016-10-28 | 2018-05-11 | 龙口中集来福士海洋工程有限公司 | Mobile ocean pasture device |
| CN107268821A (en) * | 2017-06-16 | 2017-10-20 | 山东大学 | A kind of multistage mixed type dissipative damping device |
| CN107762229A (en) * | 2017-11-21 | 2018-03-06 | 山东大学 | The current vortex dissipative damping device of controlled level and torsional direction |
| CN109914372A (en) * | 2019-04-25 | 2019-06-21 | 青岛理工大学 | Self-resetting offshore jacket platforms structural system based on built-in swing column |
| CN214423329U (en) * | 2020-12-22 | 2021-10-19 | 大连理工大学 | Novel underwater energy dissipation and vibration reduction device comprising retractable wing plates |
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