一种新的碰撞耗散能快速估算方法及其在船—平台碰撞事故中的应用研究（英文）

发布时间：2018-06-21 18:56

本文选题：船—平台碰撞 + 耗散能　；参考：《船舶力学》2017年12期

【摘要】：海洋平台在作业过程中存在遭受船舶碰撞的潜在危险,一旦事故发生将可能导致结构严重损伤从而影响平台的作业安全,因此在平台结构设计阶段需要考虑其抗撞性能。文章以海洋供应船撞击半潜式钻井平台为研究对象,基于碰撞外部动力学理论和DNV规范计算方法,计及平台艏摇运动响应的影响,提出了一种新的耗散能估算方法-DNV`R解析法。以非线性有限元船-平台碰撞数值仿真结果为参考,将该解析法与规范法、Zhang解析法及Liu解析法计算结果进行对比,研究得出:文中所提出的DNV`R解析法弥补了规范法较为保守且仅适用于对心碰撞场景的不足,计算过程简单、便捷,且计算精度与Zhang解析法和Liu解析法基本接近,能够满足船-平台碰撞耗散能快速估算的精度要求。
[Abstract]:The offshore platform has the potential danger of collision in the course of operation. Once the accident occurs, it may lead to serious damage to the structure and affect the operational safety of the platform. Therefore, the anti-collision performance of the platform structure should be considered in the design phase of the platform structure. Based on the collision external dynamics theory and the DNV code calculation method, a new dissipative energy estimation method, DNV`R analytical method, is proposed in this paper, taking into account the effect of the platform bow motion response on the semi-submersible drilling platform impacted by an ocean supply ship. Based on the numerical simulation results of nonlinear finite element ship-platform collision, the analytical results are compared with those of Zhang analytical method and Liu analytical method. The results show that the DNV`R analytical method proposed in this paper makes up for the shortcomings of the criterion method, which is conservative and only applicable to the collision scene, and the calculation process is simple and convenient, and the calculation accuracy is close to that of Zhang analytic method and Liu analytical method. It can meet the accuracy requirement of fast estimation of dissipative energy of ship-platform collision.
【作者单位】：江苏科技大学海洋装备研究院;中国船舶及海洋工程设计研究院;
【基金】：Supported by Special Project for innovation for ‘Seventh generation ultra-deepwater drilling platform(ship)’ of high-tech ship of Ministry of Industry and Information Technology;Special Project for innovation for ‘Research and development of deepwater semi-submersible support platform’ of high-tech ship Ministry of Industry and Information Technology the National Natural Science Foundation of China(51779109) Natural Science Foundation of Jiangsu,China(BK20171306) the State Key Laboratory of Ocean Engineering of Opening Foundation(1407)
【分类号】：U698.6

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