转换开关不完全可靠的三部件串联冷贮备系统  

Three parts tandem cold standby system with incomplete reliable switch

作　　者：陈变娟[1] 孟宪云[1] 

机构地区：[1]燕山大学理学院,河北秦皇岛066004

出　　处：《辽宁工程技术大学学报（自然科学版）》2013年第2期281-284,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：河北省教育厅基金资助项目(2007323);全国统计科研计划基金资助项目(2010LC33)

摘　　要：针对一般可修系统中可靠性指标不易计算的问题,采用时齐马尔可夫过程,研究了假设工作部件与转换开关的寿命、部件的修理时间均服从连续型指数分布,开关修理时间为PH分布,转换开关不完全可靠,各部件均能修复如新的三部件串联冷贮备系统.结果表明:通过引入PH分布代替一般分布等分布,易于计算一些可靠性指标.In response to the problem that it is difficult to calculate reliability index in general repairable system, using the Markov process, this study investigates the three parts tandem cold reserve system with the hypothesis that the working parts and switch life, and component repair time obey the continuous exponential distribution; the switch repair time follows PH distribution, the switch is not completely reliable, and each unit can be restored as new. The results show that： by introducing PH distribution instead of general distribution or other distributions, it is easy to calculate some reliability indexes.

关 键 词：PH分布 冷贮备 转换开关 稳态概率分布 不完全可靠 可修系统 马氏过程 LAPLACE变换 

分 类 号：O213.2[理学—概率论与数理统计]