摘要
将汽车半轴参数的不确定参量作为区间数,结合区间数运算法则和可靠性设计方法给出了汽车半轴非概率可靠性模型,讨论了多区间变量非线性函数的可靠性度量方法,提出了基于区间分析的汽车半轴的非概率可靠性设计思路。结合算例,在性能参数的分布函数未知而区间数已知情况下进行了汽车零部件可靠性设计,得出了汽车半轴的最大响应应力。研究表明,该方法简单实用,对原始数据要求低,且对于汽车其他零部件的可靠性设计有借鉴作用。
The uncertain parameters of vehicle semiaxle were described by interval numbers, combining interval analysis with reliability design method, a non-probabilistic reliability model of vehicle semiaxle was presented. It discussed a measurement method of reliability with non-linear function for multiple interval variables. Based on interval analysis,a non-probabilistic reliability design idea for vehicle semiaxle was proposed. Finally, on condition that distribution function of parameters was unknown and interval numbers were known, an example of reliability design of vehicle parts was given, a maximum response stress was obtained. The research shows that the approach is reasonable, and the initialization is brief required. The most important is that it can be applied to other parts of the reliability design.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2010年第11期1298-1300,共3页
China Mechanical Engineering
基金
重庆市自然科学基金资助项目(2007BB3398)
关键词
非概率
可靠性设计
汽车半轴
区间分析法
non- probabilist
reliability design
vehicle semiaxle
interval analysis method
