预张力对码头系泊缆绳最大张力及船舶位移的影响分析  

Analysis of the Influence of Pre-tension upon Maximum Line Tension and Ship’s Motion at Wharf Mooring

作　　者：时永鹏[1] 张鼎[1] 陈忱[1] 汤霄扬 闫凤超 SHI Yong-peng;ZHANG Ding;CHEN Chen;TANG Xiao-yang;YAN Feng-chao(Marin Design&Research Institute of China,Shanghai 200011,China)

机构地区：[1]中国船舶及海洋工程设计研究院,上海200011

出　　处：《船海工程》2023年第5期58-63,共6页Ship & Ocean Engineering

摘　　要：为在制定系泊方案时合理考虑缆绳张力和船舶位移优化控制,使用与MEG4原则相符的系泊计算软件,考虑预张力从0%~60%的变化范围,计算预张力、缆绳最大张力和船舶位移,分析变化趋势、极值点、拐点特征及缆绳刚度和环境载荷的变化,结果表明,存在最优的预张力值,使缆绳最大张力达到最低;船舶位移曲线存在拐点、在拐点之后船舶位移不再随预张力的增大而显著降低;最优预张力和拐点位置与缆绳刚度基本无关,但在环境载荷增大时建议增大缆绳预张力。In order to reasonably consider the optimal control of cable pretension and ship displacement when making mooring plans,the mooring calculation software consistent with the MEG4 principle was used to calculate the pretension,maximum line tension and ship displacement,considering the variation range of pretension from 0%to 60%,and analyze the change trend,extreme point and inflection point characteristics as well as the changes of line stiffness and environmental load.The results showed that there is an optimal pretension value to minimize the maximum line tension;there is an inflection point in the ship displacement curve,and the displacement after the inflection point is no longer significantly reduced with the increase of the pretension;the optimal pretension and inflection point position are basically independent of the line elasticity,but it is recommended to increase the pretension at the same time as the environmental load increases.

关 键 词：系泊分析 码头系泊 预张力 缆绳 船舶位移 

分 类 号：U653.2[交通运输工程—港口、海岸及近海工程]