摘要
在考虑循环载荷作用下强度随使用时间不断退化时,研究了应力-强度干涉模型下的可靠性统计推断问题,给出了一个考虑载荷作用次数应力-强度退化干涉失效模型。应用应力-强度干涉可靠性分析模型进行实例分析计算,结果与实验值符合很好,说明所提出新模型是合理有效的,更符合实际情况。
Considering the strength aging degradation with the action of circulatory load,the prob-lem of statistic inference of reliability is studied in the Stress-Strength Interference model,and then a Stress-Strength Interference reliability model taking into the frequency of loading is presented.An example has been carried out by applying the Stress-Strength Interference reliability model,and its results have well correlation with the experiment.So it is showed that the presented model is valid and reasonable as well as accorded with the facts.
出处
《机械设计与制造》
北大核心
2008年第12期205-207,共3页
Machinery Design & Manufacture
基金
国家自然科学基金重点项目(50535010)
辽宁省自然科学基金项目(20052034)
高等学校创新团队项目资助
关键词
强度退化
剩余强度
可靠性
应力-强度干涉模型
Strength aging degradation
Residual strength
Reliability
Stress-strength inter-ference
