Novel torpedo anchor based on bionics and construction method thereof

A bionic, torpedo anchor technology, applied in anchor points, anchoring arrangements, ship components, etc., can solve the problems of insufficient technological innovation and increase of the interface friction coefficient, and achieve the improvement of the pull-out bearing capacity and stability, and the increase of the resistance to friction. Pull-out resistance, enhance the effect of pull-out bearing capacity

Active Publication Date: 2020-12-15
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing methods mainly start from increasing the contact area between the anchor body and the seabed soil, or need to provide an additional power source to enhance the penetration performance, and to increase the falling speed of the anchor body in water, increase the The t...

Method used

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  • Novel torpedo anchor based on bionics and construction method thereof
  • Novel torpedo anchor based on bionics and construction method thereof
  • Novel torpedo anchor based on bionics and construction method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] like Figure 1-4 As shown, a novel torpedo anchor based on bionics includes an anchor body 2, an anchor rod 3, an anchor wing 5, an anchor tip 1 and a spiral expansion mechanism; the anchor rod 3 is located below the inside of the anchor body 2, and the anchor tip 1 Located at the top of the anchor rod 3, the anchor wing 5 is fixed at the tail of the anchor body 2, and the spiral telescopic mechanism is located above the interior of the anchor body 2;

[0035] The diameter of the anchor rod 3 is 0.75m~1.2m, the length is 12.5m~15.0m, and threads are arranged from the top to 1 / 3~1 / 4 thereof; the diameter of the anchor body 2 is 0.8m~1.3m m, 12.5m to 15.0m long, cylindrical in shape, with an imitation sharkskin structure 16 arranged on the outer surface, and a baffle 14 inside to limit the vertical movement of the interlocking rotor; the bionic sharkskin structure is a three-dimensional Interlocking rib structure with a thickness of 0.01m to 0.02m;

[0036] The spiral t...

Embodiment 2

[0039] According to the construction method of a novel torpedo anchor based on bionics described in the present invention, at first, according to the design requirements, the anchor rod 3 is 12.5m to 15.0m long (12.5m in this embodiment) and 0.75m to 1.2m in diameter (this The embodiment is 1m), and the top to the bottom 1 / 3~1 / 4 (the present embodiment is 4m) is provided with screw thread. The anchor body 2 has a length of 12.5m to 15.0m (13m in the present embodiment) and a diameter of 0.8m to 1.3m (1.2m in the present embodiment). Anchor wing 5 is wide 0.5m~1.5m (the present embodiment is 1m), and long is the anchor length of 1 / 3~2 / 3 (the present embodiment is 7m), thick 0.07m~0.08m (the present embodiment is 0.08m) ). The anchor tip 5 is oval or conical (conical in this embodiment), 1.5m to 5.0m long (3.5m in this embodiment), and 0.75m to 1.2m in diameter (1m in this embodiment). Add concave hexagonal honeycomb negative Poisson's ratio metal material at anchor wing 5, it...

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Abstract

The invention provides a novel torpedo anchor based on bionics and a construction method thereof. The novel torpedo anchor is composed of an anchor body, an anchor rod, anchor wings, an anchor tip anda spiral extension mechanism. The anchor wings or the anchor body is additionally provided with negative poisson ratio materials, and the uplift bearing capacity of the torpedo anchor is improved byutilizing the characteristics of tension expansion and compression shrinkage of the negative poisson ratio materials; based on the sharkskin bionic principle, the surface structure of the anchor bodyis optimally designed, the water flow resistance in the installation and penetration process is reduced, and the frictional resistance between the anchor body and a seabed soil body is increased in the pull-up working state; the bionic principle of razor clam digging is used for reference, after initial penetration is completed, a working anchor chain is tensioned to be in linkage with the spiralextension mechanism, so that the anchor rod on the inside penetrates downwards, secondary penetration into the soil body is achieved, and the uplift bearing capacity and stability of the anchor body are improved.

Description

technical field [0001] The invention relates to deep-sea mooring foundations, in particular to a novel torpedo anchor based on bionics and a construction method thereof. Background technique [0002] With the development of society and economy, my country's demand for oil and gas resources is increasing day by day. In order to meet the growing demand for oil and gas energy, the development of offshore oil and gas resources has gradually shifted from shallow sea to deep sea. Since the cost of fixed platforms increases sharply with the increase of operating water depth, it is generally only suitable for shallow seas, while floating platforms with relatively stronger applicability are mostly used in deep sea areas. The floating platform relies on its own buoyancy to support the weight of its upper part, and anchors the platform through the mooring system; the mooring system, as a component of the deep-sea floating structure, plays a vital role in its operation safety. Commonly...

Claims

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Application Information

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IPC IPC(8): B63B21/26B63B21/29B63B21/50
CPCB63B21/26B63B21/29B63B21/50B63B2021/265
Inventor 牛景琳孔纲强瑜璐杨庆
Owner DALIAN UNIV OF TECH
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