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建立了橡胶密封材料压缩永久变形的加速老化模型及其多元双方差回归分析方法,给出了密封性能的回归方程及其高置信水平、高可靠度的单侧置信上限曲线,并建立了可靠贮存寿命、贮存可靠度的计算方法.橡胶密封性能的多元双方差回归模型包含与时间有关的过程自变量和与温度有关的状态自变量,可以将不同温度下的加速老化试验数据作为一个整体进行回归分析,充分利用了不同时刻压缩永久变形间的纵向信息,具有信息量大、精度高且计算简单的特点.
The accelerated aging model of rubber sealing material under compression set and its multivariate two-way regression analysis method are established. The regression equation of sealing performance and its unilateral upper confidence limit curve with high confidence level and high reliability are given, and a reliable storage Life expectancy and storage reliability of the rubber seal performance multivariate two-way differential regression model includes time-dependent process variables and temperature-dependent state variables can be accelerated aging test data at different temperatures as a whole regression Analysis, full use of different moments of compression between the longitudinal deformation of the information, with a large amount of information, high precision and simple calculation features.