1) first-time fault

首次故障
1.
Some concepts such as reliability, first-time fault, average life-span and crowed number,are derive.
在此方法中,只要确定了系统的首次故障平均时间θ和故障密度的众数θmax,就能确定系统可靠度的两个特征参数λ和m,从而确定可靠度的具体表述。
2) First falure time

首次故障时间
3) main fun first failure time

主通风机首次故障时间
4) MTTFF

首次故障前平均时间
5) MTTFF(mean time to first failure)

MTTFF(首次故障前平均时间)
6) MTTFF

首次故障前的平均时间
1.
Whenever n is given, we can obtain the exact formulas of the system reliability (or its Laplace transformation) and the system MTTFF (mean time to first failure).
利用本文引进的广义转移概率定义导出了系统的状态转移概率,当n已知时,我们能够获得系统可靠度的L-变换和首次故障前的平均时间的精确表达式。
2.
Assuming that the working time and repair time of each component are both exponentially distributed and that each component after repair is as good as new, we derive the exact expressions of the reliability and MTTFF of the repairable system.
研究了n中取相邻n-1好的直列可修系统,假定每个部件的工作时间和维修时间都是指数分布且故障部件能“修复如新”时,求出了该系统的可靠度和首次故障前的平均时间等可靠性指标的精确表达
补充资料:首次
1.第一次;头一回。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条