基于JMP的高温强度裕量分析应用  

Application of High Temperature Strength Margin Analysis Based on JMP

作　　者：唐继秋 彭琦 杜旭东 TANG Jiqiu;PENG Qi;DU Xudong(CEPREI,Guangzhou 511370,China)

机构地区：[1]工业和信息化部电子第五研究所,广东广州511370

出　　处：《电子产品可靠性与环境试验》2024年第4期33-37,共5页Electronic Product Reliability and Environmental Testing

摘　　要：对于电子产品高温强度初始值的确定,目前缺乏一种与可靠度指标有效关联的科学分析方法。高温强度初始值是通过高温强度裕量进行确定的,同时它决定着高温应力步进试验中步进到哪个温度点停止步进,也决定着高温应力步降试验中从哪个温度点开始步降。基于裕量可靠的可靠性科学原理,结合应力-强度干涉模型理论,采用蒙特卡洛方法,运用JMP工具开展分析得到高温强度初始值,并以此来指导高温应力步加试验剖面的设计,从而将产品可靠度指标要求落实到产品实际的可靠性试验中,实现可靠性试验剖面设计的科学性与合理性。For the determination of the initial value of high temperature strength of electronic products,there is still a lack of an effective scientific analysis method associated with the reliability index.The initial value of high temperature strength is determined by the high temperature strength margin,it determines the stepping stop temperature point in the high temperature stress step-up-stress test,and also determines starting temperature point in the high temperature stress step-down-stress test.Based on the principle of reliability science of margin reliability,combined with the theory of stress-strength interference model,the initial value of high temperature strength is obtained by using Monte Carlo method and JMP tool,which is used to guide the design of high temperature stress step-stress test profile,so as to put the product reliability index requirements into the actual reliability test of the product,and realize the scientificity and rationality of the reliability test profile design.

关 键 词：应力-强度干涉模型 强度裕量 强度阈值 强度初始值 蒙特卡洛 

分 类 号：TB114.3[理学—概率论与数理统计]