考虑广义耦合的多应力加速寿命评估方法

张帆, 田润操, 王鹏, 董磊

Multi-stress accelerated life evaluation method considering generalized coupling

Fan ZHANG, Runcao TIAN, Peng WANG, Lei DONG

表9 威布尔分布的三应力参数估计值和标准误差

Table 9 Estimated values and standard errors of triple-stress parameters for Weibull distribution

应力组合 参数 估计值 标准误差 置信区间(95%) 1 η1 26.470 8 1.157 1 (24.364 9, 28.997 5) 2 η2 2.865 8 0.124 4 (2.640 3, 3.138 9) 3 η3 52.751 5 2.284 2 (48.639 0, 57.794 6) 4 η4 110.386 7 4.826 1 (101.597 9, 120.923 7) 5 η5 5.295 3 0.229 5 (4.881 4, 5.801 3) 6 η6 12.132 1 0.528 2 (11.174 1, 13.290 2) 整体 β 5.185 8 0.376 4 (4.475 1, 5.950 3)