摘要
应力—强度干涉法是结构可靠度计算的基础,然而在结构疲劳可靠度计算时材料的等寿命强度很难求得。根据模糊概率积分法,给出了一种利用蒙特卡洛抽样直接求解结构可靠度的数值计算方法,经过数值试验表明,该算法简单、有效,而且实施过程简单,容易为工程计算所采用,具有一定的应用价值。
Stress-strength Integral method is the basis for structure reliability evaluation, but this method can not work properly when it is used to structure fatigue reliability estimation as the important parameter-material＇s eqiui-life strength-can hardly be obtained. A numerical approach based on the fuzzy probability integral method was studied. This method can give the structure reliability directly without the need of the equi-life strength. A case study indicates that this approach is effective ,and it is easy to implement and suitable for engineering applications.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2005年第5期778-782,共5页
Journal of Aerospace Power
关键词
航空、航天推进系统
结构可靠性
蒙特卡洛模拟
应力-强度干涉
模糊概率积分法
aerospace propulsion system
structure reliability
Monte-Carlo simulation
stress strength interference
fuzzy probability integral
