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Determining the throughput of a CONWIP system using adjusted ARM

Determining the throughput of a CONWIP system using adjusted ARM Purpose – The purpose of this paper is to propose an adjusted approximate regenerative model (ARM) for a constant‐work‐in‐process (CONWIP)‐based production system that solves the problem of deciding the number of intermediate bulk container in a pharmaceutical company to hold the work in process. Design/methodology/approach – The problem was modeled as a CONWIP system and the ARM was adjusted to estimate the throughput. Findings – By comparing the results from the original ARM and adjusted ARM, a clear superiority of the proposed method is shown for the real case. In addition, the robustness of the adjusted ARM is demonstrated in terms of the violation of rigid assumption and the impacts brought by the limitation of buffer space before the bottleneck station. Originality/value – The novelty of the proposed model is to take the long transportation time between machines into consideration. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Manufacturing Technology Management Emerald Publishing

Determining the throughput of a CONWIP system using adjusted ARM

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References (37)

Publisher
Emerald Publishing
Copyright
Copyright © 2011 Emerald Group Publishing Limited. All rights reserved.
ISSN
1741-038X
DOI
10.1108/17410381111160933
Publisher site
See Article on Publisher Site

Abstract

Purpose – The purpose of this paper is to propose an adjusted approximate regenerative model (ARM) for a constant‐work‐in‐process (CONWIP)‐based production system that solves the problem of deciding the number of intermediate bulk container in a pharmaceutical company to hold the work in process. Design/methodology/approach – The problem was modeled as a CONWIP system and the ARM was adjusted to estimate the throughput. Findings – By comparing the results from the original ARM and adjusted ARM, a clear superiority of the proposed method is shown for the real case. In addition, the robustness of the adjusted ARM is demonstrated in terms of the violation of rigid assumption and the impacts brought by the limitation of buffer space before the bottleneck station. Originality/value – The novelty of the proposed model is to take the long transportation time between machines into consideration.

Journal

Journal of Manufacturing Technology Management – Emerald Publishing

Published: Sep 11, 2011

Keywords: Constant work in process; Approximate regenerative model; Simulation; Robustness; Intermediate bulk container; Distribution management; Operations management

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