| 范碧岑,李楷,丁生宝,苑志江,蒋晓刚,陆丛红.一种网-桁架式海上拦截装置仿真分析[J].,2024,64(2):182-193 |
| 一种网-桁架式海上拦截装置仿真分析 |
| Simulation analysis of a net-truss offshore intercepting device |
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| DOI：10.7511/dllgxb202402009 |
| 中文关键词: 海上拦截装置 安全防护 动力学仿真 欧拉-拉格朗日耦合(CEL) |
| 英文关键词: offshore intercepting device safety protection dynamic simulation coupled Eulerian-Lagrangian (CEL) |
| 基金项目:国家自然科学基金资助项目(51509033)；中央高校基本科研业务费专项资金资助项目(DUT19JC51). |
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| 中文摘要: |
| 针对海上设施的安全防护问题，提出了一种网-桁架式海上拦截装置，目的是在有效拦截来袭小艇撞击的同时尽量降低对拦截装置本身的损伤．为验证这一装置的有效性，基于显式动力学和欧拉-拉格朗日耦合方法对拦截装置拦截小艇过程进行数值模拟，设定小艇垂直撞击支撑柱、支撑柱间隙和45°撞击支撑柱、支撑柱间隙4种工况，每种工况包含10、20、30 m/s 3种速度．通过对这12组仿真的碰撞力、能量以及破损状态分析，全方位分析了该装置的防撞性能和对小艇的拦截效果．所有工况下该装置都能完成对小艇的拦截，说明这种装置具有优秀的拦截效果． |
| 英文摘要: |
| In view of the safety protection of offshore structures, a net-truss offshore intercepting device is proposed. The goal is to effectively intercept the incoming small boat while minimizing the damage to the intercepting device itself. In order to verify the effectiveness of this device, numerical simulation of the process of intercepting small boat by the intercepting device is performed based on explicit dynamics and coupled Eulerian-Lagrangian method, and four working conditions are set including small boat vertically and at 45° impacting the support column and support column gaps, each of which includes 3 speeds of 10, 20 and 30 m/s. Through the analysis of the 12 groups of simulated collision force, energy and damage state, the anti-collision performance and small boat interception effect of the device are comprehensively analyzed. The device can intercept small boat under all working conditions, which shows that the device has excellent interception effect. |
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