Power Weibull Model for Reliability Assessment

摘要

In the recent era of globalization, maintenance engineering concepts are being revisited world-wide. In reliability engineering, determination of burn-in plays key role in provisions of warranty. Latest maintenance system like Reliability Centered Maintenance (RCM) demands rather closer estimation of the parameters pertaining to the failure process of maintenance significant items. Bathtub shaped hazard rate is very much useful in this regard. The traditional Weibull distribution can cover the profile piecewise only. The power Weibull model discussed in this paper, helps to resolve this issue. Parameter estimation methods are also studied for this model. Case studies discussed in this paper illustrate the applicability of the model.