随机横浪中船舶倾覆概率计算  

Calculation of the Ship's Capsizing Probability at Stochastic Beam Sea

作　　者：黄衍顺[1] 李红涛[1] 王震[1] 

机构地区：[1]天津大学船舶工程系,天津300072

出　　处：《船舶力学》2001年第5期15-20,共6页Journal of Ship Mechanics

摘　　要：本文对随机横浪中船舶的运动及其倾覆概率计算进行了探讨。计算中海浪用ITTC推荐的海浪谱 ,风采用Davenport频谱描述。设船舶横摇服从高斯分布 ,由此确定横摇极大值的概率密度 ,计算出船舶在不稳定区内每次横摇的倾覆概率 ,进而确定船舶在无航速漂流全过程中的倾覆概率 。In this paper, A study of the computation of the ship's capsizing probability in stochastic beam sea is made. The ITTC spectrum is used for the description of the wave and the Davenport spectrum is used for the wind in this method. The heeling maximum peak's outline can be defined, if ship's heeling obeys Gaussian process. So the capsizing probability of every heeling at random at the unstable domain can be calculated. Then the capsizing probability is got at the ship's no speeding drifting course. Finally, a computational sample of a ship is given.

关 键 词：横浪 倾覆概率 横摇极值 船舶 Davenport频谱 稳定性 

分 类 号：U661.22[交通运输工程—船舶及航道工程]