摘要
采用舰船波浪中操纵性基本方法建立操纵与摇荡耦合动力学方程,简化后得到摇荡耦合动力学方程。针对文献资料进行了舰船规则斜浪中航向保持运动模拟,结果显示,规则波浪中操纵与摇荡耦合运动响应出现不规则摇荡运动现象,而摇荡耦合运动响应则不出现不规则摇荡运动现象。通过对遭遇频率的频谱分析,得到规则波浪中操纵与摇荡耦合运动的不规则响应机理是遭遇频率的变化结论。
By adopting maneuvering principle of ships in waves,the coupling dynamic equations between maneuverability and oscillatory motions were established and the single-oscillatory dynamic equations were obtained by simplifying the coupling equations.The maneuverability and oscillatory motions of a ship were calculated for the case of regular oblique waves,and he irregular oscillatory response occurred in the results of simulation.However,it didn＇t happen in the single-oscillatory motions.Analysis of the spectrum on the wave encounter frequency was used to explain the reason of the irregular response in regular waves.The conclusion that,the rapid change of wave encounter frequency induced the irregular response,can be obtained.
出处
《舰船科学技术》
2011年第1期41-44,共4页
Ship Science and Technology
基金
国家部委基金资助项目(9140A140305093B1105)
关键词
舰船
操纵性
耐波性
规则波浪
摇荡响应
ship
maneuverability
seakeeping performance
regular waves
oscillatory response
