多点锚泊系统吸引子和吸引域的计算  

Computation of Attractors and Attracting Basin in Multi Point Mooring System

作　　者：欧阳茹荃[1] 朱继懋[1] 

机构地区：[1]上海交通大学船舶与海洋工程学院,上海市200030

出　　处：《海洋工程》1999年第3期62-68,共7页The Ocean Engineering

基　　金：海洋863 计划

摘　　要：针对单自由度多点锚泊系统的纵荡运动模型，研究系统在浪和流作用下的多吸引子和吸引域。以布锚参数，来流和波浪尺度为变参数，运用数值积分和胞映射分析相结合的方法，求得系统的多种形式的振动解，与前人采用完全数值积分方法相比，结果一致。认为在实际中只需研究解的定范围渐近稳定性。文中采用胞映射法，计算了多种振动解的定范围吸引域，以及混沌吸引子的吸引域。Based on the surge model of a multiple point mooring system, the existence of multiple attractors has been studied under the effect of wave and flow. Moreover,their attracting basin have been obtained. Considering both the mooring parameters and the amplitude of flow and wave as variable parameters,we use numerical integration combined with Cell map method to get various oscillation solutions. The results agree well with other research findings.The attracting basins of some attractors and even chaos attractors in given regions have been obtained through the cell map method.The asymptotical stability of attractors and their sensitivity to the initial state have also been analyzed.

关 键 词：锚泊系统 吸引子 吸引域 定范围渐近稳定性 

分 类 号：U675.92[交通运输工程—船舶及航道工程]