新型深水复合式锚泊线动力特性分析

发布时间：2018-01-09 11:35

  本文关键词：新型深水复合式锚泊线动力特性分析　出处：《哈尔滨工程大学学报》2017年01期 　论文类型：期刊论文

  更多相关文章： 复合式锚泊系统 集中质量法 动力学模型 动刚度特性 合成纤维缆

【摘要】：通过对工作水深为1 500 m的新型复合式锚泊线进行动刚度和动张力计算,并与静刚度下计算结果比较,说明了在合成纤维缆的数值计算中考虑其动刚度特性的必要性;传统动刚度计算中将整条纤维缆作为直线考虑,假定纤维缆上应力和应变处处相同,不考虑纤维缆自身重量,且忽略流体动力的作用,这些假设和忽略降低了计算精度,且无法适用于不均匀缆和复合式锚泊线的计算;基于集中质量法建立了复合锚泊线的动力学模型,提出基于统计的方法计算合成纤维缆各缆段的平均张力,采用分段动刚度的方法通过迭代求解各缆段上的动刚度和动张力,并考虑了自身重量、流体动力和海流的影响。
[Abstract]:The dynamic stiffness and dynamic tension of a new composite mooring line with a working depth of 1 500 m are calculated and compared with the calculated results under static stiffness. It is necessary to consider the dynamic stiffness of synthetic fiber cable in numerical calculation. In the traditional calculation of dynamic stiffness, the whole fiber cable is considered as a straight line. It is assumed that the stress and strain on the fiber cable are the same everywhere, the weight of the fiber cable is not considered, and the effect of hydrodynamic force is ignored. These assumptions and neglects reduce the accuracy of calculation and can not be applied to the calculation of non-uniform cable and compound mooring line. Based on the lumped mass method, the dynamic model of composite mooring line is established, and the statistical method is proposed to calculate the average tension of each segment of synthetic fiber cable. The piecewise dynamic stiffness method is used to solve the dynamic stiffness and tension of each cable segment iteratively, and the effects of its own weight, hydrodynamic force and current are considered.
【作者单位】： 大连海事大学航海动态仿真和控制实验室;
【基金】：国家863基金项目(2015AA016404) 交通部应用基础研究项目(2014329225370) 中央高校基本科研业务费专项资金项目(3132016310)
【分类号】：P751;TE951
【正文快照】： 网络出版地址:http://www.cnki.net/kcms/detail/23.1390.u.20161212.1631.028.html随着科学技术的发展和人类对油气资源的需求不断增加,海洋油气资源的开发逐渐向深水延伸,海洋浮式结构物的定位技术面临巨大的挑战。传统的悬链式锚泊系统通常采用三段浮容重、刚度和长度均不，

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