Previous research on the redundancy allocation problem for series parallel systems has focused on where component reliability is assumed to be an exact value.
以前在串—并联冗余系统可靠性的最优分配问题上，总是把部件的可靠度看成是一个确定的值。
Previous research on the redundancy allocation problem for series-parallel systems has focused on where component reliability is assumed to be an exact value.
以前在串-并联冗余系统可靠性的最优分配问题上，总是把部件的可靠度看成是一个确定的值，此方法有其局限性。
The general expressions of reliability of series and parallel systems are deduced and the extent of effect of failure -dependence on the reliability is analysed.
文中建立了串联和并联失效相关系统可靠度的一般公式，并分析了失效相关的影响幅度。
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