基于混合理论的可靠性设计方法及其应用研究  

Reliability design method and its application research based on hybrid theory

作　　者：陶友瑞[1] 蒋邦 

机构地区：[1]湖南工程学院机械工程学院,湖南湘潭411101

出　　处：《机械设计》2016年第3期1-6,共6页Journal of Machine Design

摘　　要：针对工程设计中存在众多的不确定变量,且无法都采用概率理论描述其分布规律的问题,文中提出一种新的可靠性优化设计方法,该方法采用混合理论来描述不确定变量的分布特性,并基于JC法求可靠性指标。数值算例和工程算例表明,该方法求解效率较常规可靠性优化设计方法高,并且计算结果更加准确。The objective was to solve the problem of many uncertain variables existed in engineering design. This problem of distribution law cannot be described using probability theory. A new reliability-based optimization design method was presented in this paper. The distribution of uncertain variable can be described using hybrid theory. And the reliability index can be calculated based on JC method. The numerical and engineering examples showed that the efficiency and accuracy of the results were improved in this method compared with general reliability-based optimization design method.

关 键 词：混合理论 JC法 可靠性优化设计 

分 类 号：TB114.3[理学—概率论与数理统计]