单向关闭两部件串联可修系统某些新的可靠性指标

Some New Reliability Indexes of Two-Unit Series System with One Direction Shut—off Rule

本文利用史定华在文献[1]中所引用的补充变量方法,研究了曹晋华在文献[2]中提出的模型2。假定部件1的寿命分布为k-Erlang分布,部件2的寿命及两部件的修理时间均为一般连续型分布,部件1有优先修理权,分别求出了系统的更新频度,更新分布及每个部件首次失效时间分布等新的可靠性指标。

By using the supplementary variable method used in Ref[1], a model proposed in Ref[2] is further discussed. That is a two-unit series system with one direction shut-off rule and preemp-tive priority for unit 1 to be repaired. In this paper, not only the life distribution of unit 1 is extended ask-Erlangian, but the renewal frequency and renewal distribution of the system, and the first failuretime distribution for each component are also obtained.