| 浅海非线性随机波浪的谱特性分析 |
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| 引用本文： | 马汝建,李增亮.浅海非线性随机波浪的谱特性分析[J].中国石油大学学报(自然科学版),1997(5). |
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| 作者姓名： | 马汝建 李增亮 |
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| 作者单位： | 石油大学机械系!山东东营，257062 |
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| 基金项目： | 中国石油天然气总公司中青年创新基金 |
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| 摘 要： | 应用非线性谱分析理论推导及数值计算方法，对浅海非线性随机波浪的谱特性进行了分析．首先将波面方程、海水质点的速度及加速度分解成一阶和二阶分量，通过引入Hermite多项式，得到了波面方程与其一阶分量的自相关函数之间的关系，从而确定了一阶波面分量的谱密度，进而得到了速度谱及加速度谱密度．
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| 关 键 词： | 非线性 波浪 波谱 谱分析 浅海 |
ANALYSIS OF SPECTRAL CHARACTERISTICS OF NONLINEAR RANDOM WAVES IN SHALLOW SEA |
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| Ma Rujian, Li Zengliang.ANALYSIS OF SPECTRAL CHARACTERISTICS OF NONLINEAR RANDOM WAVES IN SHALLOW SEA[J].Journal of China University of Petroleum,1997(5). |
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| Authors: | Ma Rujian Li Zengliang |
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| Institution: | Ma Rujian; Li Zengliang |
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| Abstract: | The spectral properties of nonlinear random waves in shallow sea are analyzed by using theoretical derivation and nurnerical metheds. This is done by decomposing the wave profile, the veforities and accelerations of water particles into first and second order components. The relationship between autocorrdlation functions of wave profile and its first order component is determined by introducing Hermite poynomial. The spectral densities of the velocities and accelerations of water particles are obtained in the same way. |
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| Keywords: | Nonlinear Random wave Wave spectrum Spectrum analysis Shallow sea |
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