哈尔滨工程大学学报2011，Vol.32Issue(6)：719-723,5.DOI:10.3969/j.issn.1006-7043.2011.06.005
船舶在随机横浪中的全局稳定性
Global stability of ship motion in stochastic beam seas
摘要
Abstract
In order to improve the safety of ship navigation on the sea, the global stability of a ship in stochastic beam seas was researched using the global bifurcation method, based on the nonlinear dynamics theory. While considering the stochastic excitation term as bounded noise as well as the influence of nonlinear damping and a nonlinear righting moment, a stochastic nonlinear single degree of freedom differential equation for ship rolling was established. The random Melnikov mean-square criterion was used to analyze the global stability of this system and the results were verified by the safe basin method. The research indicates that the bounded noise can simulate the wave excitation quite well, and if the noise exceeds the threshold value, the ship will undergo stochastic chaotic motion. That will lead to instability of the ship and possibly even to capsizing.关键词
随机横浪/随机Melnikov均方准则/安全池/全局稳定性Key words
stochastic beam seas/ random Melnikov mean-square criterion/ safe basin/ global stability分类
交通工程引用本文复制引用
胡开业,丁勇,王宏伟,李积德..船舶在随机横浪中的全局稳定性[J].哈尔滨工程大学学报,2011,32(6):719-723,5.基金项目
中央高校基本科研业务费专项基金资助项目(HEUCF100111). （HEUCF100111）
