| 规则波浪中船舶操纵响应遭遇频率频散概念与机制 |
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| 引用本文： | 朱军,陈俊锋,葛义军.规则波浪中船舶操纵响应遭遇频率频散概念与机制[J].海军工程大学学报,2010,22(3). |
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| 作者姓名： | 朱军 陈俊锋 葛义军 |
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| 作者单位： | 海军工程大学,船舶与动力学院,武汉,430033 |
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| 基金项目： | 国家部委基金资助项目 |
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| 摘 要： | 采用船舶单自由度横摇运动方程,以及纵摇与垂荡耦合摇荡运动方程,数值模拟了规则波浪中船舶操纵响应不规则摇荡运动现象。假定波浪中船舶遭遇频率具有谐波分量形式,定义了遭遇频率常量、强度和散射频率,提出了船舶遭遇频率频散概念,推导了遭遇频率的频散关系,分析得到了航速和浪向角度变化引起的两种频散机制。散射机制表明:顶浪航行时航速散射效率最高,正横浪航行时航向角散射效率最高。
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| 关 键 词： | 船舶 操纵 规则波浪 遭遇频率 散射 |
Conception and mechanism of ship frequency dispersion by maneuvering motions in regular waves |
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| ZHU Jun,CHEN Jun-feng,GE Yi-jun.Conception and mechanism of ship frequency dispersion by maneuvering motions in regular waves[J].Journal of Naval University of Engineering,2010,22(3). |
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| Authors: | ZHU Jun CHEN Jun-feng GE Yi-jun |
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| Institution: | ZHU Jun,CHEN Jun-feng,GE Yi-jun(College of Naval Architecture and Power,Naval Univ.of Engineering,Wuhan 430033,China) |
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| Abstract: | The irregular oscillatory motion of maneuverability response in regular waves was numerically simulated by adopting ship motion equation of rolling with single-freedom degree and coupled heave-pitch motion equation.Based on the presupposition of harmonic wave encounter frequency,the concept of frequency scattering of wave encounter frequency was presented.The constant value,as well as amplitude and frequency,of wave frequency of encounter were defined,and the dispersion relation of wave encounter frequency ... |
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| Keywords: | ship maneuvering regular waves frequency of encounter dispersion |
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