Optimal burn-in time and imperfect maintenance strategy for a warranted product with bathtub shaped failure rate
by Mahmood Shafiee; Ezzatollah Asgharizadeh
International Journal of Collaborative Enterprise (IJCENT), Vol. 2, No. 4, 2011

Abstract: 'Burn-in/preventive maintenance' programme is an efficient approach used to minimise the warranty servicing cost of a product with bathtub shaped failure rate. Burn-in is a widely used method to improve the quality of product during its 'infant mortality' period and preventive maintenance is a scheduled necessary activity carried out during its 'wear-out' period. In this paper, an optimisation model is developed to determine the optimal burn-in time and optimal imperfect preventive maintenance strategy that minimises the total mean servicing cost of a warranted product with an age-dependent repair cost. We provide a numerical study to illustrate our results.

Online publication date: Wed, 23-Nov-2011

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