| 规则波中船舶复原力和参数横摇研究 |
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| 引用本文： | 鲁江,马坤,黄武刚.规则波中船舶复原力和参数横摇研究[J].海洋工程,2011,29(1). |
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| 作者姓名： | 鲁江 马坤 黄武刚 |
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| 作者单位： | 大连理工大学,工业装备结构分析国家重点实验室,船舶工程学院,辽宁,大连,116024 |
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| 基金项目： | 中国留学基金资助项目(2008606031) |
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| 摘 要： | 为研究规则波中船舶复原力变化规律及其对参数横摇的影响,首先,基于切片理论求解出船舶无横倾时在波浪中时间序列垂荡和纵摇运动,确定出波面与船体的相对位置;其次,利用三个坐标系之间的转换关系进而确定规则波中船体各横剖面左右舷与波面瞬时交点,求得各浸水剖面面积;然后对波浪压力沿船长湿表面积分,得出规则波中船舶复原力的Froude-Krylov部分。同时,利用作用在横倾船舶上的辐射力和绕射力,求出规则波中船舶复原力辐射力和绕射力部分。在复原力计算的基础上,确定一个参数横摇模型,实现波浪中参数横摇计算。以一艘集装箱船为例,研究了规则波中复原力变化以及参数横摇规律,复原力变化幅度是影响参数横摇的一个重要因素。
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| 关 键 词： | 复原力 参数横摇 Froude-Krylov假说 规则波 船舶 |
Research on roll restoring variation and parametric rolling in waves |
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| LU Jiang,MA Kun,HUANG Wu-gang.Research on roll restoring variation and parametric rolling in waves[J].Ocean Engineering,2011,29(1). |
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| Authors: | LU Jiang MA Kun HUANG Wu-gang |
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| Institution: | LU Jiang,MA Kun,HUANG Wu-gang(School of Naval Architecture Engineering,State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Techno-logy,Dalian 116024,China) |
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| Abstract: | In order to study the roll restoring variation in waves and the effect of restoring variation on parametric rolling,firstly,the relative position of ship to waves is determined with heave and pitch motions obtained by a strip theory applied to an upright hull.Secondly,a general method for calculating intersections between ship and waves is presented base on transform of three coordinate systems and the instantaneous area of wet sections is calculated and then the nonlinear Froude-Krylov component of restori... |
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| Keywords: | restoring moment parametric rolling Froude-Krylov waves ship |
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