维修性增长趋势检验研究

Study on Trend Test of Maintainability Growth

对即时改进和延缓改进两种维修性增长规划方式进行了趋势检验研究。针对即时改进的维修性增长规划方式,提出了趋势检验的图示法和Laplace方法。针对延缓改进的维修性增长规划方式,根据修复率(第i阶段的修复率为μi)的顺序约束条件:∞>μm≥…≥μi≥…≥μ2≥μ1>0,探讨了指数分布和正态分布维修性增长趋势检验的区间估计法,并结合数值例说明了这些方法的可行性。

This paper study trend test of maintainability growth （test-fix and delayed-fix）. The diagrammatic representation and Laplace method are presented on trend test of test-fix. And following ordered constraint condition of repair rate （repair rate of i phase is∞〉μm≥…≥μ1≥…≥μ2≥μ1〉0, the confindence interval estimation of exponential distribution and normal distribution are applied on trend test of delayed-fix. And these methods are illustrated by numerical examples.