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Article
A General Approach to Robustness Assessment for Multidisciplinary Systems
Proceedings of the ASME Design Engineering Technical Conference
  • Xiaoping Du, Missouri University of Science and Technology
  • Yi Zhang
Abstract

In many engineering applications, both random and interval variables may exist. The mixture of both types of variables has been dealt with in robust design for single disciplinary systems. This work focuses on robustness assessment for general multidisciplinary systems with the presence of both random and interval variables. To alleviate the intensive computational demand, we propose a semi-second-order Taylor expansion method to estimate robustness. A performance function is approximated linearly in terms of random variables, but the interaction terms between random and interval variables are kept. Robustness is measured by the standard deviation of a system performance. The maximum and minimum standard deviations over the interval variables are identified. With proposed method, the impact of both random and interval variables on the system performance can be found efficiently. Copyright © 2008 by ASME.

Meeting Name
Proceedings of the ASME Design Engineering Technical Conference (2008, Brooklyn, NY)
Department(s)
Mechanical and Aerospace Engineering
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2008 American Society of Mechanical Engineers (ASME), All rights reserved.
Publication Date
1-1-2008
Citation Information
Xiaoping Du and Yi Zhang. "A General Approach to Robustness Assessment for Multidisciplinary Systems" Proceedings of the ASME Design Engineering Technical Conference (2008)
Available at: http://works.bepress.com/xiaoping-du/4/