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中文摘要：
针对产品加速寿命模型适用性无法定量评估的问题,将加速寿命模型转化成更具一般性的线性模型,并从三维空间角度将加速寿命模型适用性的验证问题转化为空间数据点共面性的检验问题,从加速寿命试验数据的统计检验角度出发,对综合应力加速寿命模型进行多元线性回归拟合,并以表征空间数据点和拟合值的垂直距离平方和与空间数据点本身的离差平方和相对大小的统计量作为检验指标,提出定量评估加速寿命模型适用性的多元线性回归拟合检验的验证方法,并对Y11P型航天电连接器基于失效分析得出的温度和振动综合作用下的广义Eyring模型进行验证,验证结果表明广义Eyring模型能确切描述电连接器寿命特征在温度和振动综合应力作用下的变化规律。
英文摘要：
For the problem that applicability of accelerated life model cannot be quantitatively assessed,by transforming accelerated life model into a more general linear model,meanwhile,by transforming the applicability validation problem of accelerated life model into the coplanarity test problem of spatial data points from the perspective of three-dimensional space,from the point of view of statistical test,accelerated life model under multiple stresses are fitted by multiple linear regression method.Taking the statistic as the test target,which characterizes the relative size of the sum of square of vertical distance between spatial data points and fitted values,and the sum of deviation square of spatial data,the verification method of multiple stresses accelerated life model by using constant stresses accelerated life test data is proposed,which can quantitatively assess the applicability of accelerated life model.After the verification of Y11P series aerospace electrical connectors’ generalized Eyring model,the confidence level of model is quantitatively obtained.The verification result shows that the generalized Eyring model can preferably describe the nature of the electrical connectors’ life characteristics variation under multiple stresses of temperature and vibration.
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