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Determining the throughput of a CONWIP system using adjusted ARM

Carman K.M. Lee (Division of Systems and Engineering Management, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore)
,
He Hu (Division of Systems and Engineering Management, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore)
Danping Lin (Division of Systems and Engineering Management, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore)
Linda Lianfeng Zhang (Department of Management, IESEG School of Management, Catholic University of Lille, Lille, France)

Journal of Manufacturing Technology Management

ISSN: 1741-038X

Article publication date: 11 September 2011

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.

Keywords

Citation

Lee, C.K.M., Hu, H., Lin, D. and Lianfeng Zhang, L. (2011), "Determining the throughput of a CONWIP system using adjusted ARM", Journal of Manufacturing Technology Management, Vol. 22 No. 7, pp. 853-869. https://doi.org/10.1108/17410381111160933

Publisher

:

Emerald Group Publishing Limited

Copyright © 2011, Emerald Group Publishing Limited