摘要
为解决高可靠度结构的不确定性可靠性问题,提出了采用分离式蒙特卡洛方法(SMC)对失效概率进行计算,该方法是以原始的蒙特卡洛方法(CMC)和条件期望法(CE)为基础,采用不同的响应样本和能力样本,以抽样样本的试验分布函数代替条件期望方法中精确的分布函数.通过实例计算结果表明,SMC方法既解决了计算的成本问题,又提高了计算精度,能够很好的解决高可靠结构的不确定性可靠性问题.
To solve the uncertainty reliability problem of a high reliability structure,a separable Monte Carlo(SMC) method based on crude Monte Carlo(CMC) method and Condition expectation(CE) method is proposed.The method uses different sample size of response and capacity,and replaces the distribution function of CE with empirical distribution function of sample of SMC.Practical example of reliability shows that SMC method not only solves the calculation cost,but also improves the calculation precision,it can be applied to uncertainty reliability problem of structures.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2013年第1期89-93,共5页
Journal of Harbin Institute of Technology
基金
国家自然科学基金资助项目(91016029)
关键词
高可靠结构
不确定性
原始的蒙特卡洛
条件期望
分离式蒙特卡洛
high reliability structure
uncertainty
crude Monte Carlo
condition expectation
separable monte carloo