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Methods for Robust Multidisciplinary Design
Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
  • Xiaoping Du, Missouri University of Science and Technology
  • Yijun Wang
  • Wei Chen
Abstract
Robust design has been gaining wide attention and its applications have been extended to making reliable decisions when designing complex engineering systems under a multidisciplinary design environment. Though the usefulness of robust multidisciplinary design is widely acknowledged, its implementation is rare. One of the reasons is due to the complexity and computational burden associated with the evaluation of performance variations caused by the randomness (uncertainty) of a system. In this paper, we develop a robust multidisciplinary design procedure that utilizes efficient methods for uncertainty analysis. Different from the existing uncertainty analysis techniques, our proposed techniques bring the features of MDO framework into consideration. The system uncertainty analysis method (SUAM) and the concurrent subsystem uncertainty analysis method (CSSUAM) are developed to estimate the mean and variance of system performance subject to uncertainties associated with both design parameters and design models. The techniques used for uncertainty analysis will significantly reduce the amount of design evaluations at the system level, and therefore improve the efficiency of robust design in the domain of MDO. The merits and limitations of the proposed techniques are illustrated through example problems.
Meeting Name
Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference (2000, Atlanta, GA, USA)
Department(s)
Mechanical and Aerospace Engineering
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2000 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.
Publication Date
1-1-2000
Citation Information
Xiaoping Du, Yijun Wang and Wei Chen. "Methods for Robust Multidisciplinary Design" Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference (2000)
Available at: http://works.bepress.com/xiaoping-du/44/