EPQ models with production rate proportional to power demand rate, rework process and scrapped items
DOI:
https://doi.org/10.23055/ijietap.2019.26.2.3870Keywords:
Economic Production Quantity (EPQ), power demand pattern, rework process, scrap items, backordered shortagesAbstract
In the most of the production systems, at the end of the replenishment period, some imperfect units detected by inspection process, are reworked and the others are disposed. Constant rate of demand is one of the usual assumptions in the conventional lot sizing models. But this assumption is not suitable in many real cases. With regard to these points, this work deals with a joint problem of demand having a power pattern, production rate pro rata with demand rate, defective items, rework process and scrap items. It is assumed that a manufacturer may be faced with two scenarios: all imperfect units are recovered or a certain fraction of imperfect units are reworked and the others are disposed. Setup, holding, backordering, inspection, production, rework and disposal costs are involved in the inventory system. An algorithm is presented to optimize total inventory cost and determine the best reorder point, lot size and scheduling period. A numerical analysis is carried out to illustrate the applications of the proposed models.
Published
How to Cite
Issue
Section
License
The Author(s) must formally transfer each article's copyright before publication in the INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING. Such transfer enables the Journal to defend itself against plagiarism and other forms of copyright infringement. Your cooperation is appreciated.
You agree that the copyright of your article to be published in the INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING - THEORY, APPLICATIONS, AND PRACTICE is hereby transferred, throughout the World and for the full term and all extensions and renewals thereof, to INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING - THEORY, APPLICATIONS, AND PRACTICE.
The Author(s) reserve(s): (a) the trademark rights and patent rights, if any, and (b) the right to use all or part of the information contained in this article in future, non-commercial works of the Author's own, or, if the article is a "work-for-hire" and made within the scope of the Author's employment, the employer may use all or part of the information contained in this article for intra-company use, provided the usual acknowledgments are given regarding copyright notice and reference to the original publication.
The Author(s) warrant(s) that the article is Author's original work and has not been published before. If excerpts from copyrighted works are included, the Author will obtain written permission from the copyright owners and credit the article's sources.
The author also warrants that the article contains no libelous or unlawful statements and does not infringe on the rights of others. If the article was prepared jointly with other Author(s), the Author agrees to inform the co-Author(s) of the terms of the copyright transfer and to sign on their behalf; or in the case of a "work-for-hire," the employer or an authorized representative of the employer.
The journal does not provide the author copy of the final paper when it is published. The author(s) can make(s) a subscription to INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING - THEORY, APPLICATIONS, AND PRACTICE if they want to get the final paper that has already been published.
The journal is registered with the Library of Congress (ISSN # 1943-670X). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the journal.
The author reserves patent and trademark rights and the right to use all or part of the information contained in the article in future non-commercial works.
