Template:P ratio crow rga

[math]\displaystyle{ p }[/math] Ratio

In the Crow Extended - Continuous evaluation, there is a certain probability of not incorporating a corrective action by time [math]\displaystyle{ T }[/math] . This is the additional (third parameter), as compared to the Crow Extended model. We define [math]\displaystyle{ p }[/math] as:

[math]\displaystyle{ p=\frac{\text{All modes such that, if seen, will be corrected at time }T\text{, or later}}{\text{All failure modes such that, if seen, the corrective action will be delayed}} }[/math]

It is assumed that the ratio [math]\displaystyle{ p }[/math] remains fixed over . This implies that each time a distinct failure mode is seen, the probability that the corrective action is delayed until time [math]\displaystyle{ T }[/math] or later is [math]\displaystyle{ p }[/math] . In other words, each time a new BD mode is seen over [math]\displaystyle{ (0,T) }[/math] there is a probability [math]\displaystyle{ p }[/math] that the corrective action for that mode will not have been incorporated into the system by time [math]\displaystyle{ T }[/math] . Under the Crow Extended two-parameter model, this probability is always equal to 1 at time [math]\displaystyle{ T. }[/math]