Robust Design Optimization with Bivariate Quality Characteristics

Author

Xiaoping Du, Missouri University of Science and TechnologyFollow

Abstract

In robust design optimization, if Taguchi quality loss function is employed, its expectation is minimized. When multiple quality characteristics exist, their covariances appear in the expectation and usually require numerical integrations. In this work, we propose an analytical robust design approach without numerical integrations to problems with bivariate quality characteristics. The quality characteristics are assumed to be functions of independent normal random variables with small uncertainties. Because the uncertainties are small, the functions are linearized with good accuracy. Analytical equations are then derived for the expected quality loss. The approach is efficient because no numerical integrations are needed. It is applied to the robust synthesis of a four-bar linkage. © Springer Verlag 2012.

Recommended Citation

X. Du, "Robust Design Optimization with Bivariate Quality Characteristics," Structural and Multidisciplinary Optimization, Springer Verlag, Jan 2012.

The definitive version is available at https://doi.org/10.1007/s00158-011-0753-5

Department(s)

Mechanical and Aerospace Engineering

International Standard Serial Number (ISSN)

1615-147X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2012 Springer Verlag, All rights reserved.

Publication Date

01 Jan 2012