串联浮筒多组分锚泊线松弛-张紧特性分析  

Analysis of Taut-Slack Characteristics of Multi-Component Mooring Lines with Series Buoys

作　　者：马佳鹏 李效民[1] 郭海燕[1] Ma Jiapeng;Li Xiaomin;Guo Haiyan(College of Engineering,Ocean University of China,Qingdao 266100,China)

机构地区：[1]中国海洋大学工程学院,山东青岛266100

出　　处：《中国海洋大学学报（自然科学版）》2023年第5期144-154,共11页Periodical of Ocean University of China

基　　金：国家自然科学基金项目(51979257);山东省自然科学基金项目(ZR2019MEE032,ZR2020ME261)资助。

摘　　要：为研究松弛-张紧现象对串联浮筒多组分锚泊线的影响以及规律,本文对其松弛-张紧特性进行了数值模拟分析。基于向量式有限元(VFIFE)方法,建立了以锚链-锚缆-锚链多段锚泊线和浮筒组合而成的多组分锚泊线动力学分析模型,研究了串联浮筒多组分锚泊线的松弛-张紧特性。在顶端水平预张力为定值的条件下,通过改变顶端纵荡激励的振幅和频率以及浮筒的浮重、位置和数量,预测串联浮筒多组分锚泊线的松弛-张紧现象发生的条件以及规律。结果表明,通过控制顶端激励的频率和振幅以及浮筒的浮重、位置和数量,可以有效降低松弛-张紧现象的发生,降低串联浮筒多组分锚泊线断裂的风险。The taut-slack characteristics of multi-component mooring lines with series buoys are numerically simulated and analyzed.In order to study the taut-slack characteristics of multi-component mooring lines with buoys,a multi-component mooring line model composed of anchor chain steel cable anchor chain and buoys is established based on the vector form intrinsic finite element(VFIFE)method.Under the condition that the top horizontal pretension is constant,by changing the amplitude and frequency of the top surge excitation and the floating weight,position and quantity of the buoys,the conditions and laws of the taut-slack characteristics phenomenon of the multi-component mooring line of the series buoys are predicted.The results show that by changing the frequency and amplitude of top excitation and the floating weight,position and number of buoys,the occurrence of taut-slack characteristics phenomenon can be effectively reduced and the risk of multi-component mooring line fracture can be reduced.

关 键 词：松弛-张紧特性 多组分锚泊线 浮筒 纵荡激励 向量式有限元 

分 类 号：TU311.3[建筑科学—结构工程]