Supporting Negotiations in the Early Stage of Large-Scale Mechanical System Design

[+] Author and Article Information
Ping Ge1

 Department of Mechanical Engineering, Oregon State University, Rogers Hall 416, Corvallis, OR 97331-6001christine.ping-ge@orst.edu

Stephen C.-Y. Lu

 IMPACT Laboratory, School of Engineering, University of Southern California, 3650 McClintock Avenue, OHE 430M, Los Angeles, CA 90089-1453sclu@usc.edu

Satish T.S. Bukkapatnam

 Department of Industrial Systems Engineering, University of Southern California, 3715 McClintock Avenue, GER 240, Los Angeles, CA 90089-0193satish@usc.edu


To whom correspondence should be addressed.

J. Mech. Des 127(6), 1056-1067 (Jun 10, 2004) (12 pages) doi:10.1115/1.1862675 History: Received February 28, 2002; Revised June 10, 2004

The development of large-scale mechanical systems involves interactive negotiations among nontechnical and technical design stakeholders. Usually, two types of negotiations exist: (i) those between the nontechnical stakeholders and technical stakeholders with responsibilities for the overall system, such as chief system design engineers and project managers; and (ii) those within the design engineering groups who are responsible for design tasks at different system hierarchical levels, i.e., system, subsystem, and component. This paper addresses the interactive negotiations among the design engineering groups. A direct synthesis (DS) method was developed to support the negotiations by combining adaptive and interactive modeling system based surrogate modeling with a set-based “zoom-in” approach. A vehicle frontal structural system design example is used to demonstrate how to apply the DS method in industrial practice. The preliminary results show that DS has the potential to support the fast synthesis of robust design alternatives that satisfy performance requirements at the system, subsystem, and component level.

Copyright © 2005 by American Society of Mechanical Engineers
Topics: Design
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Figure 1

Negotiable entities and negotiable processes

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Figure 2

A set-based zoom-in approach

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Figure 3

(a) Condition for the existence of a solution and (b) determining the boundaries of EPR and Design-Regions-EDR

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Figure 4

Building surrogate models for the early stage of vehicle frontal structural system design

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Figure 5

Application of the DS method in the early stage of vehicle frontal structural system design



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