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IJAT Vol.1 No.1 pp. 35-44
doi: 10.20965/ijat.2007.p0035
(2007)

Paper:

An Economic/Lead-Time Design Comparison and Map for Central Server Systems Including FMS

Masayuki Matsui and Liping Wang

The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu-shi, Tokyo 182-8585, Japan

Received:
February 5, 2007
Accepted:
May 10, 2007
Published:
September 5, 2007
Keywords:
central server, routing strategy, FMS, ellipse theory, economics/lead-time
Abstract

This paper presents an economic/lead-time design comparison and pair-matrix table for Central Server Systems including a flexible manufacturing system (FMS), and reconsiders the strategic/ellipse map in four routing strategies. First, the CSM incorporating four routings and a sales center is considered under economics/lead-time. The central server corresponds to a parts warehouse in FMS, regarded as a sales/profit center. Second, production/service center operating cost is obtained analytically by the sum of inventory, busy, idle and blocking cost, and the economic traffic (optimal number of parts) is decided by maximizing the marginal profit (= sales price – operating cost). Third, buffers, throughput and lead time under economic traffic are obtained at the second stage based on 2-stage design. Fourth, strategic design management under a profit and lead-time correlation is discussed for the pair-matrix table, and the ellipse shape is found for four routing types in the CSM with sales. We also propose new hybrid routing and quantitatively demonstrate its superiority.

Cite this article as:
Masayuki Matsui and Liping Wang, “An Economic/Lead-Time Design Comparison and Map for Central Server Systems Including FMS,” Int. J. Automation Technol., Vol.1, No.1, pp. 35-44, 2007.
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