A METHOD OF DETERMINING A CONFIDENCE INTERVAL FOR AVAILABILITY
A METHOD OF DETERMINING A CONFIDENCE INTERVAL FOR AVAILABILITY
复制标题
一种确定可用性置信区间的方法
DOI：
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发表时间：
1965
期刊：
影响因子：
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通讯作者：
W. Keesee
中科院分区：
文献类型：
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作者：
W. Keesee
摘要：本报告提供了一种确定可用性置信区间的方法，该置信区间是根据设备故障之间的平均时间和修复这些故障的平均时间来估计的。当系统的故障率和修复率是与时间无关的常数时，可以证明平均故障间隔时间和平均修复故障时间的估计值可以合并得到方差比密度。估计的可用性可以被示出为具有密度，该密度是方差比密度的函数。然后，可以使用该关系来获得可用性的置信区间的等式。包括一个例子来演示的过程中放置一个置信区间的估计可用性。
Abstract : This report presents a method of determining a confidence interval for availability when it is estimated from the mean time between equipment failures and the mean time to repair these failures. When the failure rate and repair rate of a system are constants independent of time, it can be shown that the estimates of mean time between failures and of mean time to repair the failures can be combined to have the variance ratio density. The estimated availability can be shown to have a density which is a function of the variance ratio density. This relation can then be used to obtain equations for a confidence interval for availability. An example is included to demonstrate the procedure of placing a confidence interval about the estimated availability.