圆柱螺旋弹簧疲劳强度可靠性分析的区间方法  

Interval method of fatigue strengthen reliability analysis of cylindrical spiral spring

作　　者：魏宗平[1] 

机构地区：[1]宝鸡文理学院机电工程系机电工程研究所,宝鸡721007

出　　处：《现代制造工程》2008年第12期73-76,共4页Modern Manufacturing Engineering

基　　金：宝鸡文理学院重点科研计划项目(ZK0799)

摘　　要：指出在数据信息缺乏的情况下,圆柱螺旋弹簧疲劳强度概率可靠性分析方法的缺陷。分析圆柱螺旋弹簧疲劳强度分析中的不确定性,将圆柱螺旋弹簧设计中不确定参数描述为区间变量,建立圆柱螺旋弹簧疲劳强度非概率可靠性分析的区间模型,提出圆柱螺旋弹簧疲劳强度非概率可靠性的指标。通过工程实例,说明该方法的有效性和简便性。The limitations of probabilistic reliability of cylindrical spiral spring fatigue strengthen is indicated due to the lack of the original data. The uncertain parameters of cylindrical spiral spring fatigue strengthen analysis are analyzed and described as interval variables,and an interval analysis model is established, and the non-probabilistic reliability index of cylindrical spiral spring fatigue strengthen is presented. Finally, the approach is illustrated by an example. According to the numerical results, the approach proposed is a simple and practical reliability analysis method.

关 键 词：圆柱螺旋弹簧 疲劳强度 非概率可靠性 区间分析 

分 类 号：TH114.3[机械工程—机械设计及理论]