多失效模式机械系统可靠性灵敏度设计  

RELIABILITY-BASED SENSITIVITY DESIGN OF MECHANICAL SYSTEM WITH CORRELATED FAILURE MODES

作　　者：贺向东[1] 聂超[1] 张义民[2] 闻邦椿[2] 

机构地区：[1]大连工业大学机械工程与自动化学院,大连116034 [2]东北大学机械工程与自动化学院,沈阳110004

出　　处：《机械强度》2011年第2期212-216,共5页Journal of Mechanical Strength

基　　金：国家自然科学基金（50535010）; 中国博士后基金（2005038593）资助项目.

摘　　要：在机械系统可靠性设计理论与灵敏度分析方法的基础上,研究不完全概率信息条件下多失效模式的机械系统可靠性灵敏度分析问题,提出机械系统可靠性灵敏度分析的计算方法,给出可靠性灵敏度的变化规律,研究设计参数的改变对机械系统可靠性的影响,为机械系统可靠性设计提供理论依据。Based on the reliability-based design theory of mechanical system and sensitivity analysis method,the reliability-based sensitivity analysis of mechanical system with correlated failure modes under incomplete probability information is extensively researched and a numerical method for reliability-based sensitivity analysis is presented.The variation regularities of reliability sensitivity are obtained and the effects of design parameters on reliability of mechanical system are studied,and the theoretic basis for the reliability-based design of mechanical system is obtained.

关 键 词：机械系统 不完全概率信息 灵敏度分析 可靠性灵敏度设计 

分 类 号：TB114.3[理学—概率论与数理统计] TH122[理学—数学]