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Condition-based maintenance often needs to solve population-oriented decision problems (e.g., determination of preventive maintenance, opportunistic maintenance and spare part order thresholds). It would be much convenient to solve such decision problems based on a state-based residual life distribution, whose parameters depend on degradation amount. In this paper, we propose a new approach to find...
This paper proposes a simple approximation for the renewal function of the Weibull distribution with an increasing failure rate (i.e., the shape parameter being larger than one). It is developed for using in optimization of preventive maintenance policies. The approximation is a weighted geometer average of the cumulative distribution and hazard functions with the weight being a function of the shape...
The reliability requirement of a product (or component) is often given by the mean life. Actually, the expected service life of a product is smaller than the mean life unless the product is run to failure. This implies that ana- fractile life with 0 < alpha << 0.5 can better represent the product service lifetime than the mean life. On the other hand, the life of about 50% of the products...
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