基于分段Weibull分布的使用可靠性统计模型

Statistical Distribution Model of Field Reliability Based on Phased Weibull Distribution

使用可靠性理论的统计模型是综合优化维修策略、维修备件库存/订货、维修资源等的关键问题。阐述了可靠性分析中常用的6种Weibull分布形式,研究了基于分段Weibull分布的使用可靠性统计模型的建立方法,拟合质量指标e的计算与不同分布函数的拟合精度比较,分布函数的χ2拟合检验,并建立了汽车整车使用可靠性统计模型。

The statistical distribution model of field reliability of system or component is the key to synthetically optimize the maintenance and repair policy, spare parts inventory/indent and maintenance resource. Six types of Weibull distribution models that often used in the analysis of reliability were expounded. And the way to set up the statistical distribution model of field reliability, the calculation of goodness of fit indicator and the comparison of fit goodness of different distribution functions, the X^2 fit checkup have been studied as well. And the statistical distribution model of field reliability of a whole automobile was set up.