摘要
选用实际在航货船船型,运用理论和模型试验相结合的方法确定非线性横摇运动方程各系数,研究了随机波浪和随机风中船舶安全池的破损问题。引入定量分析方法,考虑扰动波谱(例如ITTC谱)对安全池破损的影响以及脉动风速谱的作用,进一步揭示了安全池破损的内在机理及影响因素。本文认为,计算安全池时应选择合适的扰动波谱,风速脉动特性的影响是不能忽略的。
The safe basin erosion of ship in random winds and waves is investigated by means of a nonlinear rolling motion equation whose coefficients are determined by theoretical and model experiments. The quantitative analysis methods have been introduced, and the influences of both wave spectrum (such as ITTC spectrum) and the turbulent wind velocity spectrum have been drawn into consideration. The inherent mechanism and the affecting factors of safe basin erosions have been further revealed. It is concluded that random wave spectrum should be selected appropriately, and the influence of the wind velocity spectrum should not be ignored because the wind can not only affect the beeling angle bue also lead to safe basin erosion.
出处
《中国造船》
EI
CSCD
北大核心
2004年第1期14-19,共6页
Shipbuilding of China
基金
国家自然科学基金资助项目(10072021)
