Failure Models Indexed by Time and Usage
several problems in reliability require failure to be described by more than one scale, typically time to failure and some measure of usage. In this paper we describe several methods by which reliability models indexed by time and usage may be constructed. The constructions rely on many of the most well known methods in reliability, such as the failure rate, proportional hazards and accelerated life. We demonstrate, by means of examples, that tractable models can be constructed.
Keywords and phrasesAdditive hazard gamma process multiple scales proportional hazards reliability
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