Application of an improved importance sampling method in mechanisms reliability
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摘要: 在对响应面法和重要度抽样法研究的基础上,针对机构可靠性分析的特点,研究了将重要度抽样和响应面法相结合的机构可靠性分析方法,同时根据以上方法开发了相应的计算仿真软件,并对某型飞机升降舵操纵机构在规定时间内下偏到位的可靠性进行了分析计算.结果表明:该方法可显著提高机构可靠度计算的效率,是一种较好的机构可靠性分析方法.Abstract: The Monte Carlo importance sampling method together with response surface, which was used to calculate the mechanisms reliability, was studied. Based on the method, a reliability analysis software for aircraft structural systems was developed, and a case of a elevator control mechanisms was presented to illustrate the method. The analysis results show that this method can enhance the mechanisms reliability analysis efficiency.
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Key words:
- mechanisms /
- reliability /
- Monte-Carlo method /
- control mechanisms /
- importance sampling /
- response surface method
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