Multiple Attributes Utility Analysis in Setup Plan Evaluation

[+] Author and Article Information
Nuo Xu, Samuel H. Huang

Intelligent CAM Systems Laboratory, Department of Mechanical, Industrial and Nuclear Engineering, University of Cincinnati, Cincinnati, OH 45221

J. Manuf. Sci. Eng 128(1), 220-227 (May 29, 2005) (8 pages) doi:10.1115/1.2117407 History: Received April 04, 2004; Revised May 29, 2005

Setup planning is an intermediate phase of process planning, and automating setup planning constitutes a critical component of computer-aided process planning. The common absence of a clearly defined optimality of setup plans has been a major obstacle to converting automatic setup planning research progress into real advancement in practice. The optimality of a setup plan is a multiple attributes problem associated with uncertainties, and human interaction is vital in clarifying the optimality structure in a dynamic setup planning environment. In this paper, a quantitative setup plan evaluation system driven by multiple-attributes utility analysis coupled with manufacturing error simulation is proposed to serve three purposes: (1) to clarify what is optimality of setup plans, (2) to provide a systematic method of evaluating setup plan alternatives quantitatively, and (3) to incorporate in existing automatic setup planning systems a human interface to fulfill their potential values.

Copyright © 2006 by American Society of Mechanical Engineers
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Figure 1

Tasks and constraints of setup planning

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Figure 2

Utility quantification

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Figure 3

Common procedure to develop a MAUF

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Figure 4

Simplified bearing bracket

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Figure 5

Performance distribution obtained from simulation

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Figure 6

Utility function for tolerance

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Figure 7

Utility function visualization



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