| 波浪对船舶非线性横摇阻尼的影响 |
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| 引用本文： | 李远林,吴家鸣,王冬姣.波浪对船舶非线性横摇阻尼的影响[J].船舶工程,2003,25(2):21-24. |
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| 作者姓名： | 李远林 吴家鸣 王冬姣 |
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| 作者单位： | 华南理工大学交通学院,510640 |
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| 基金项目： | 国家自然科学基金资助项目 (编号 10 0 72 0 2 1) |
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| 摘 要： | 横摇非线性阻尼通常是在静水中进行横摇衰减试验确定。本文通过在波浪水池中进行不规则波的船模横摇衰减试验，研究了波浪对非线性横摇阻尼的影响。研究发现波浪的存在使横摇阻尼线性部分减少，非线性部分增加；采用随机减量法得到非线性横摇阻尼时，门槛值不同所得到的阻尼也不相同，一般说来，门槛值越大，阻尼非线性成分增加，而线性成分减少。
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| 关 键 词： | 船舶 非线性横摇阻尼 波浪 模型试验 |
Effect of Waves on Nonlinear Rolling Damping of Ship |
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| Li Yuanlin,Wu Jiaming and Wang Dongjiao.Effect of Waves on Nonlinear Rolling Damping of Ship[J].Ship Engineering,2003,25(2):21-24. |
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| Authors: | Li Yuanlin Wu Jiaming and Wang Dongjiao |
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| Abstract: | The nonlinear rolling damping of a ship is usually determined by rolling attenuation test in calm water.In this paper,the effect of waves on nonlinear rolling damping is researched experimentally through attenuation test of a model ship rolling in irregular waves in a wave tank.It is found that the nonlinear portion of rolling damping is increased while the linear portion of it decreased during the model ship's rolling in waves;the values of rolling damping vary with different thresholds when a random decrement technique is used,in general,the nonlinear damping is increased and the linear one decreased with the increase of thresholds. |
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| Keywords: | Ship Nonlinear rolling Damping Waves Model ship test |
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