Determining Economic Manufacturing Quantity for an unreliable manufacturing system in discrete time setting Online publication date: Tue, 01-Jul-2008
by B.C. Giri, T. Dohi
International Journal of Operational Research (IJOR), Vol. 3, No. 5, 2008
Abstract: The paper considers an Economic Manufacturing Quantity (EMQ) problem for a failure-prone manufacturing system in which the production facility may fail at most once during a production cycle. In a discrete time framework, we formulate the model under general-failure and -repair (corrective) time distributions based on the Net Present Value (NPV) approach. As a special case, the model with general failure and constant repair times is considered. The traditional long-run average cost model is obtained from the NPV model by taking limitation on the discount rate. The criteria for the existence of a local optimal solution are derived for the NPV as well as the long-run average cost models. With numerical examples, the optimal production policies are determined and sensitivity of some model-parameters are examined. A comparison of the outcome of the proposed model with the one obtained by time discretisation in the corresponding continuous time model is also made.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
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 Operational Research (IJOR):
Login with your Inderscience username and 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
Our Blog 
Follow us on Twitter 
Visit us on Facebook