RESEARCH PAPERS: Design Automation Papers

A General Approach for Robust Optimal Design

[+] Author and Article Information
A. Parkinson, C. Sorensen, N. Pourhassan

Department of Mechanical Engineering, Brigham Young University, Provo, UT 84602

J. Mech. Des 115(1), 74-80 (Mar 01, 1993) (7 pages) doi:10.1115/1.2919328 History: Received February 01, 1991; Online June 02, 2008


This paper describes a general, rigorous approach for robust optimal design. The method allows a designer to explicitly consider and control, as an integrated part of the optimization process, the effects of variability in design variables and parameters on a design. Variability is defined in terms of tolerances which bracket the variation of fluctuating quantities. A designer can apply tolerances to any model input and can analyze how the tolerances affect the design using either a worst case or statistical analysis. As part of design optimization, the designer can apply the method to find an optimum that will remain feasible when subject to variation, and/or the designer can minimize or constrain the effects of tolerances as one of the objectives or constraints of the design problem.

Copyright © 1993 by The American Society of Mechanical Engineers
Topics: Design
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