Modeling and Analysis of Two-Part Type Manufacturing Systems
Name
IMST015a.pdf
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237.28 KB
Format
Adobe PDF
Checksum (MD5)
18f97b728639152dfc7091ea76c42371
Author(s)
Jang, Young Jae
Gershwin, Stanley B.
Date Issued
January 2005
Series/Report no.
Innovation in Manufacturing Systems and Technology (IMST);
Abstract
This paper presents a model and analysis of a synchronous tandem flow line that produces different part types on unreliable machines. The machines operate according to a static priority rule, operating on the highest priority part whenever possible, and operating on lower priority parts only when unable to produce those with higher priorities. We develop a new decomposition method to analyze the behavior of the manufacturing system by decomposing the long production line into small analytically tractable components. As a first step in modeling a production line with more than one part type, we restrict ourselves to the case where there are two part types. Detailed modeling and derivations are presented with a small two-part-type production line that consists of two processing machines and two demand machines. Then, a generalized longer flow line is analyzed. Furthermore, estimates for performance measures, such as average buffer levels and production rates, are presented and compared to extensive discrete event simulation. The quantitative behavior of the two-part type processing line under different demand scenarios is also provided.
Subjects
manufacturing system
flexible
flow line
finite buffers
unreliable machines
markov chain model
decomposition
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