多锚链系泊浮筒非线性漂移运动的时域模拟  

THE NONLINEAR DRIFT MOTION SIMULATION OF MULTI-CHAIN MOORING BUOY IN TIME DOMAIN

作　　者：李远林[1] 吴家鸣[1] 

机构地区：[1]华南理工大学

出　　处：《海洋工程》1990年第1期25-33,共9页The Ocean Engineering

摘　　要：本文对多锚链系泊浮筒漂移运动的非线性效应进行了讨论。在波浪力和锚链系泊力都是非线性的条件下,对浮筒的运动作时域模拟,并把计算单个系泊锚链流体动力作用的Koterayama W.方法推广到多系泊锚链的情形。计算了规则波和波群中系泊浮筒漂移运动的时间历程,讨论了其运动与波高、频差的关系。可以指出,系泊浮筒系统总漂移运动受锚链流体动力的影响很大;在波群中,其幅值主要受波高支配,与频差的关系较小。This paper deals with the nonlinear effect of the drift motion of multi-chain mooring buoy. The buoy's motion in time domain is determined in the case that wave and mooring force are nonlinear. The Koterayama's method of hydrodynamic effect in single mooring chain is expanded to multi-mooring chain. The time history of drift motion of mooring buoy in regular wave and wave group is calculated. The relation between drift motion and wave height or difference of frequency is discussed. It shows that the effect of the hydrodynamic force acting on mooring chain has remarkable influence on the total drift motion of mooring buoy.

关 键 词：系泊浮筒 线性漂移 系泊力 频差 波群 波浪力 规则波 系泊系统 非线性效应 时间历程 

分 类 号：P75[天文地球—海洋科学]