Preventive maintenance modelling in lifetime warranty
by Farhad Imani; Ki-Hwan Gabriel Bae
International Journal of Quality Engineering and Technology (IJQET), Vol. 6, No. 4, 2017

Abstract: Lifetime warranty is a type of long-term assurance that is now ubiquitous. With a long period of coverage, however, the expected number of failures and the associated costs are likely to add up. Hence, maintenance policies over a lifetime warranty can have a substantial impact on warranty servicing costs. Maintenance policies impose additional costs and would be worthy only if the reduction amount in total costs due to maintenance is greater than maintenance costs. The focus of this paper is on modelling preventive maintenance during a lifetime warranty in order to derive optimal maintenance policy and optimal level of repair based on the structures of a cost function and a failure rate function. Our investigation demonstrates that the optimal strategy for preventive maintenance can be achieved by considering minor repairs during early ages and marginal repairs near the end of a product life. Numerical examples are provided to evaluate our developed models and support the corresponding results.

Online publication date: Wed, 29-Aug-2018

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Quality Engineering and Technology (IJQET):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?


Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com