| 非高斯荷载作用下结构首次失效时间分析的Monte Carlo模拟方法 |
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| 引用本文： | 何军. 非高斯荷载作用下结构首次失效时间分析的Monte Carlo模拟方法[J]. 振动与冲击, 2007, 26(3): 59-61 |
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| 作者姓名： | 何军 |
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| 作者单位： | 上海交通大学,船舶海洋与建筑工程学院,土木工程系,上海,200240 |
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| 摘 要： | 利用结构反应的头四阶矩，基于Winterstein变换，模拟非高斯荷载作用下结构的反应过程，并由结构反应过程的样本函数，建立了结构首次失效时间分析的模拟方法。二次力函数激励下线性SDOF系统的首次失效时间分析，说明了该方法的使用过程，并揭示了系统阻尼对首次失效的影响。
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| 关 键 词： | 非高斯荷载 结构反应矩 首次失效时间 Monte Carlo模拟 |
| 修稿时间： | 2006-04-24 |
MONTE CARLO SIMULATION FOR FIRST FAILURE TIME OF STRUCTURES EXCITED BY NON-GAUSSIAN LOAD |
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| He Jun. MONTE CARLO SIMULATION FOR FIRST FAILURE TIME OF STRUCTURES EXCITED BY NON-GAUSSIAN LOAD[J]. Journal of Vibration and Shock, 2007, 26(3): 59-61 |
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| Authors: | He Jun |
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| Abstract: | Based on the first to fourth moments of structural random responses and Winterstein transformation, structural responses under Non-Gaussian load are simulated. Using sample functions of structural responses, a Mont Carlo simulation method for the first failure time of a structure excited by Non-Gaussian load is presented. An example of the first failure time analysis of a linear SDOF system excited by a quadratic forcing function shows the applicability of the method proposed and reveales the influence of the damping ratio of the system on its first failure. |
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| Keywords: | Non-Gaussian load structural response moments first failure time Monte Carlo Simulation |
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