Optimal system burn-in for maximizing reliability of non-series systems

Optimal system burn-in for maximizing reliability of non-series systems

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Article ID: iaor20081695
Country: South Korea
Volume: 33
Issue: 2
Start Page Number: 273
End Page Number: 281
Publication Date: Jun 2007
Journal: Journal of the Korean Institute of Industrial Engineers
Authors:
Keywords: maintenance, repair & replacement, stochastic processes
Abstract:

The decision of how long performing system burn-in must be answered with a probabilistic model of a system lifetime at which infant mortality failures created during assembly processes are quantified. In this paper, we propose such a model which is modified from previous results. Using the system model, we derived system reliability in terms of component and system burn-in times for the two cases of minimal repair at system failure and of component replacement and connection repair at their failure times. The procedure is illustrated with a bridge system and the optimal system burn-in times are obtained for maximizing system reliability. The result suggests that an assumption of minimal repair at system failure may underestimate the optimal burn-in time in practice.

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