迎浪船舶的参数横摇分析  

Analysis of ship parametric rolling in head sea

作　　者：常永全[1] 范菊[1] 朱仁传[1] 缪国平 黄祥鹿[1] 

机构地区：[1]上海交通大学海洋工程国家重点实验室,船舶海洋与建筑工程学院,上海200030

出　　处：《水动力学研究与进展（A辑）》2008年第2期204-211,共8页Chinese Journal of Hydrodynamics

摘　　要：该文建立了三维非线性时域模拟运动方程;应用泰勒展开得到参数共振项系数;基于势流理论给出了非线性运动方程中来波影响项系数的确定方法。分析了发生参数横摇的范围和幅度;对船舶在不同波高、不同遭遇频率下的参数横摇幅值进行了系列预报,得到船舶参数横摇的发生区域图。Non-linear equations of ship motions in waves including the coupling of heave, roll and pitch are established. Parametric resonance and incidence wave coefficients in the equations are analyzed by the Taylor expansion and solved on the base of potential flow theory. A series of steady amplitudes of roll arc given due to parametric rolling to different wave amplitudes and encountering frequencies. The threshold boundaries for parametric rolling are presented.

关 键 词：参数横摇 时域数值模拟 非线性运动 迎浪 

分 类 号：U661.1[交通运输工程—船舶及航道工程]