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TECHNICAL PAPERS

Platform Selection Under Performance Bounds in Optimal Design of Product Families

[+] Author and Article Information
Ryan Fellini

Department of Mechanical Engineering,  University of Michigan, G.G. Brown Building, Ann Arbor, Michigan 48109rfellini@umich.edu

Michael Kokkolaras

Department of Mechanical Engineering,  University of Michigan, G.G. Brown Building, Ann Arbor, Michigan 48109mk@umich.edu

Panos Papalambros

Department of Mechanical Engineering,  University of Michigan, G.G. Brown Building, Ann Arbor, Michigan 48109pyp@umich.edu

Alexis Perez-Duarte

Department of Mechanical Engineering,  University of Michigan, G.G. Brown Building, Ann Arbor, Michigan 48109alexispz@umich.edu

J. Mech. Des 127(4), 524-535 (Sep 02, 2004) (12 pages) doi:10.1115/1.1899176 History: Received April 28, 2004; Revised September 02, 2004

Designing a family of product variants that share some components usually requires a compromise in performance relative to the individually optimized variants due to the commonality constraints. Choosing components for sharing may depend on what performance losses can be tolerated. In this article an optimal design problem is formulated to choose product components to be shared without exceeding user-specified bounds on performance. This enables the designer to control tradeoffs and obtain optimal product family designs for maximizing commonality at different levels of acceptable performance. A family of automotive body side frames is used to demonstrate the approach.

FIGURES IN THIS ARTICLE
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Copyright © 2005 by American Society of Mechanical Engineers
Topics: Design
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References

Figures

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Component sharing within a family of products

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Figure 11

Side-frames for three different automobiles

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Figure 12

Platform results for three variants based on component sharing

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Figure 1

Components and assembled product

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Figure 5

The approximation of the function D∘

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Reduced platform feasible set

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Figure 7

Design process of proposed methodology

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Figure 8

Two-dimensional automotive side frame model

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Figure 9

Two-dimensional automotive side frame model

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Figure 10

Trade-offs between commonality and performance

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Figure 3

Variable sharing within a family of products

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Figure 4

Null-platform point and Pareto sets for different platforms

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