摘要
在共载并联系统可靠性分析的基础上,根据条件概率及全概率理论,将系统各单元在各载荷阶段的寿命过程通过等效累积失效概率模型折合到后续寿命过程中,给出任意寿命分布下的共载并联系统可靠性模型通式.然后分析其求解方法,建立系统可靠度的蒙特卡罗仿真方法.为满足工程需要,提出系统可靠度的上下界法.算例证明了模型及算法的通用性、可行性.
Based on the original analysis of system reliability of load-sharing parallel system and ac- cording to the theory of conditional probability and total probability, the reliability model of load-sha- ring parallel system was built with components following arbitrary life distributions through conver- ting components life time during different load levels with Cumulative Damage model. Then the sol- ving method was analyzed and the Monte Carlo simulation method was established. Later the upper and lower bounds method of the system reliability was put forward to meet engineering needs. The numerical example verifies the generality and feasibility of the model and algorithm.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第4期6-10,共5页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
高等学校博士学科点专项科研基金资助项目(20116102110009)
关键词
可靠性
载荷
蒙特卡罗方法
共载并联系统
条件概率
全概率
上下界
reliability
loads
Monte Carlo methods~ load-sharing parallel system
conditional proba-bility
total probability
upper and lower bounds
