含保障延误时间的系统瞬时可用度

Availability of the System with Repair Delay

考虑可修系统在出现故障时,由于种种原因,故障不能得到及时维修,形成了一段保障延误时间。于是这一更新过程为:正常工作(直到出现故障)——保障延误——故障维修——正常工作……,假设工作时间、保障延误时间、故障维修时间均服从指数分布,我们利用傅立叶变换给出了系统的瞬时可用度。

A period of morra time appears when a repairable system cant get repaired in time because of various reasons. In this case, the renew process becomes the formula： normal working -repair delaying -repairing - normal working.... Assuming that the working time, morring time and repairing time all obey the exponential distribution, we got the availability of the system by using the Fourier transformation.