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Replacement policy for repairable system under various failure types with finite time horizon
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
2009 (English)Conference paper, Presentation (Other academic)
Abstract [en]

The repairable system suffers various type of failure and each failure type has different repair cost. Assume the failure process of the system as Non-homogenous Poisson Process (NHPP). The system is replaced after it experienced a predetermined number of minimal repairs. Considering finite time horizon, the paper proposes a replacement model for the system. It firstly proves that the failure process of each type of failure also follows NHPP. Then it develops a model to estimate the total cost which covers minimal repair cost for each type of failure and system replacement cost. To obtain the numerical solution, the paper introduces a numerical approach to approximate renewal function and a nonlinear programming model is developed. A numerical example is presented eventually.

Place, publisher, year, edition, pages
Research subject
Operation and Maintenance
URN: urn:nbn:se:ltu:diva-27686Local ID: 135838d0-e89a-11de-bae5-000ea68e967bOAI: diva2:1000875
Mathematical Models in Reliability : 22/06/2009 - 27/06/2009
Godkänd; 2009; 20091214 (yuafuq)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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Fuqing, YuanKumar, Uday
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