| 基于波浪和砰击诱导应力幅值相关性的随机组合 |
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| 引用本文： | 黄文波,张圣坤.基于波浪和砰击诱导应力幅值相关性的随机组合[J].上海交通大学学报,2003,37(7):969-972. |
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| 作者姓名： | 黄文波 张圣坤 |
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| 作者单位： | 上海交通大学,船舶与海洋工程学院,上海,200030 |
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| 基金项目： | 船舶工业国防科技应用、基础研究基金项目 (98J40 .3 .3 1.2 ) |
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| 摘 要： | 通过对波浪与砰击导致的组合应力过程进行跨越率分析，并采用泊松假设确定组合极值，估计了波浪与砰击诱导应力大小的相关性对组合极值的影响．数值结果表明，波浪与砰击诱导应力大小的相关性对组合极值的影响取决于结构阻尼和砰击发生率．
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| 关 键 词： | 波浪诱导应力 砰击诱导应力 组合应力 上跨率 相关性 |
| 文章编号： | 1006-2467(2003)07-0969-04 |
The Stochastic Combination of Wave and Slamming-Induced Stresses Based on the Correlation of Their Magnitudes |
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| HUANG Wen bo,ZHANG Sheng kun.The Stochastic Combination of Wave and Slamming-Induced Stresses Based on the Correlation of Their Magnitudes[J].Journal of Shanghai Jiaotong University,2003,37(7):969-972. |
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| Authors: | HUANG Wen bo ZHANG Sheng kun |
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| Abstract: | By performing the up crossing analysis for the combined process of the wave and slamming induced stresses and adopting Poisson's assumptions, a method was developed which can estimate the effect of the random correlation of magnitudes of wave and slamming induced stresses on the combined extreme stresses. The numerical results indicate that the effect of the random correlation on the predicted extreme values of the combined stress process depends on the damping rate of the ship hull structure and the rate of occurrence of slamming. |
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| Keywords: | wave induced stresses slamming induced stresses combined stresses up crossing rate correlation |
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