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Article
Robust Design Optimization with Bivariate Quality Characteristics
Structural and Multidisciplinary Optimization
  • Xiaoping Du, Missouri University of Science and Technology
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.
Department(s)
Mechanical and Aerospace Engineering
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2012 Springer Verlag, All rights reserved.
Publication Date
1-1-2012
Citation Information
Xiaoping Du. "Robust Design Optimization with Bivariate Quality Characteristics" Structural and Multidisciplinary Optimization (2012)
Available at: http://works.bepress.com/xiaoping-du/67/