Note on “Effects of Random Defective Rate and Imperfect Rework Process on Economic Production Quantity Model”

[+] Author and Article Information
Yuan-Shyi Peter Chiu

Department of Industrial Engineering and Management, Chaoyang University of Technology, Taichung 413, Taiwan, Republic of Chinaypchiu@mail.cyut.edu.tw

Singa Wang Chiu1

Department of Business Administration, Chaoyang University of Technology, Taichung 413, Taiwan, Republic of Chinaswang@mail.cyut.edu.tw


To whom correspondence should be addressed.

J. Manuf. Sci. Eng 128(1), 375-377 (Mar 05, 2005) (3 pages) doi:10.1115/1.2039948 History: Received November 15, 2004; Revised March 05, 2005

Conventional approaches for deriving optimal production lot size are by using the differential calculus on the production-inventory cost function with the need to prove optimality first. Recent articles proposed the algebraic approach to the solution of classic economic order quantity and economic production quantity (EPQ) model without reference to the use of derivatives. This note extends it to an EPQ model taking the random defective rate and imperfect rework process into consideration. We demonstrate that the optimal lot size can be solved algebraically and the expected inventory cost can be derived immediately as well.

Copyright © 2006 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 1

On-hand inventory of perfect quality items (9)



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