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:: Volume 4, Issue 2 (10-2013) ::
IJOR 2013, 4(2): 146-160 Back to browse issues page
A Markov Model to Determine Optimal Equipment Adjustment in Multi-stage Production Systems Considering Variable Cost
M.S. Fallah Nezhad , S.T.A. Niaki, E. Shahin
Department of Industrial Engineering, Yazd University, Yazd, Iran , Fallahnezhad@yazd.ac.ir
Abstract:   (10250 Views)
Our aim is to maximize expected profit per item of a multi-stage production system by determining best adjustment points of the equipments used based on technical product specifications defined by designer. In this system, the quality characteristics of items produced should be within lower and higher tolerance limits. When a quality characteristic of an item either falls beneath the lower limit or lies above the upper limit, it is reworked or classified as scrap, each with its own cost. A function of the expected profit per item is first presented based on equipment adjustment points. Then, the problem is modeled by a Markovian approach. Finally, numerical examples are solved in order to illustrate the proposed model.
Keywords: Optimum set of equipment adjustment, Markovian approach, Multi-stage serial production system
Full-Text [PDF 631 kb]   (6102 Downloads)    
Type of Study: Applicable | Subject: Production/Inventory
Received: 2013/05/25 | Accepted: 2013/09/4 | Published: 2014/10/31
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Volume 4, Issue 2 (10-2013) Back to browse issues page
مجله انجمن ایرانی تحقیق در عملیات Iranian Journal of Operations Research
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