摘要
常用的深水悬链锚泊线为三段浮容重、刚度和长度都不相同的索链与水中浮子组合而成的复合锚泊线。考虑了锚泊线的重力、张力、海流力及锚泊线的弹性伸长,应用分段外推的数值方法进行了静力分析;分别比较了海流力和浮子尺度作用对计算结果的影响;得到了在给定锚泊浮体位移时,整个锚泊系统所具有的回复力,并考虑了浮体竖向位移的影响。
Used in deepwater catenary mooring systems, the multi-component mooring lines are usually made up of three wire ropes and chains of different buoyancy unit weight, stiffness and length, connected with a submerged buoy. Considering the gravity, tension, current force and mooring line extension, the piecewise extrapolating method is employed to the static analysis of the multi-component mooring line. Effects of the current force and the size of the buoy are studied in the analysis. As a result, the restoring mooring forces for the entire mooring system are obtained from the tension-displacement characteristics for a given displacement of a floating structure lmeanwhile the effect of the vertical displacement of the floating structure is also estimated.
出处
《船海工程》
2009年第2期120-124,共5页
Ship & Ocean Engineering
基金
国家863计划(2006AA09A103
2006AA09A104)
关键词
深水悬链锚泊线
分段外推
静力分析
竖向位移
deepwater catenary mooring system
piecewise extrapolating method
static analysis
vertical displacement
