期刊
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
卷 42, 期 4, 页码 605-618出版社
SPRINGER
DOI: 10.1007/s00158-010-0513-y
关键词
Multidisciplinary design optimization; Aleatory uncertainty; Epistemic uncertainty; Continuous/discrete variables; Random/Fuzzy Continuous/Discrete Variables Multidisciplinary Design Optimization (RFCDV-MDO); Sequential Optimization and Reliability Assessment (SORA)
资金
- National Natural Science Foundation of China [50775026]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20090185110019]
As a powerful design tool, Reliability BasedMultidisciplinary Design Optimization (RBMDO) has received increasing attention to satisfy the requirement for high reliability and safety in complex and coupled systems. In many practical engineering design problems, design variables may consist of both discrete and continuous variables. Moreover, both aleatory and epistemic uncertainties may exist. This paper proposes the formula of RFCDV (Random/Fuzzy Continuous/Discrete Variables)Multidisciplinary Design Optimization (RFCDV-MDO), uncertainty analysis for RFCDV-MDO, and a method of RFCDV-MDO within the framework of Sequential Optimization and Reliability Assessment (RFCDV-MDO-SORA) to solve RFCDVMDO problems. A mathematical problem and an engineering design problem are used to demonstrate the efficiency of the proposed method.
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