International Journal of Production Technology and Management (IJPTM), ISSN 0976 – 6383 (Print),
ISSN 0976 – 6391 (Online), Volume 5, Issue 1, January - December (2014), pp. 01-09 © IAEME
1
A VIEW ON CONWIP CONTROL POLICY IN SUPPLY CHAIN USING
HEURISTIC METHOD
Ch. Srinivas
Professor and Principal, Vaageswari Engineering College, Karimnagar,
Andhra Pradesh, INDIA
ABSTRACT
This paper describes a methodology for a pull production inventory control strategy
which is based on optimization using heuristic algorithm for a mathematical model and then it
is evaluated using simulation. The approach is described through the examples of production
lines that process a single part type and is planned according to demand and lead time. The pull
system has drawn the attention of researchers due to substantial advantages of being able to
directly control WIP using the CONWIP cards, and can be applied to a wider variety of
manufacturing environments. The information sharing will help with the integrating the
echelons but with some complexity. To analyze the CONWIP controlled production line
mathematical modeling is often applied and also simulation study is another performance
evaluation tools so that it gives a valuable aid for gaining insights into and making decisions
about the manufacturing systems. Each node is considered as a machine in a CONWIP SC. Our
objective in this paper is to extend CONWIP control to a production inventory control system
setting with an emphasis on customer satisfaction. Given this goal, inventory levels must be
set for the whole system and the product to satisfy demands fairly. We also address a secondary
objective of minimizing inventory costs by designing our procedure to find the smallest
effective inventory level. Formulating a solvable problem meant shifting the focus to
throughput, but the allocation found by the throughput driven heuristic can be utilized to
provide good customer service. CONWIP cards can be implemented with a simple visual
control at almost any level, at a machine, a work center, plant, or even an entire supply chain
treating each echelon as a work center.
Key words: Pull and Push Production Control Systems, CONWIP, Supply Chain,
Genetic Algorithm, Simulation.
INTERNATIONAL JOURNAL OF PRODUCTION TECHNOLOGY
AND MANAGEMENT (IJPTM)
ISSN 0976- 6383 (Print)
ISSN 0976 - 6391 (Online)
Volume 5, Issue 1, January - December (2014), pp. 01-09
© IAEME: www.iaeme.com/ijptm.asp
Journal Impact Factor (2014): 1.8513 (Calculated by GISI)
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