Decline and repair and covariate effects
Wu, Shaomin and Scarf, PA 2015, 'Decline and repair and covariate effects' , European Journal of Operational Research, 244 (1) , pp. 219-226.
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The failure processes of repairable systems may be impacted by operational and environmental stress factors. To accommodate such factors, reliability can be modelled using a multiplicative intensity function. In the proportional intensity model, the failure intensity is the product of the failure intensity function of the baseline system that quantifies intrinsic factors and a function of covariates that quantifies extrinsic factors. The existing literature has extensively studied the failure processes of repairable systems using general repair concepts such as age-reduction when no covariate effects are considered. This paper investigates different approaches for modelling the failure and repair process of repairable systems in the presence of time-dependent covariates. We derive statistical properties of the failure processes for such systems.
|Schools:||Schools > Salford Business School > Business and Management Research Centre|
|Journal or Publication Title:||European Journal of Operational Research|
|Funders:||Non funded research|
|Depositing User:||Dr Philip Scarf|
|Date Deposited:||04 Feb 2015 18:23|
|Last Modified:||29 Oct 2015 00:46|
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