An efficient approach to reliability-based design optimization within the enhanced sequential optimization and reliability assessment framework

Reliability based design optimization (RBDO) has been widely implemented in engineering practices for high safety and reliability. It is an important challenge to improve computational efficiency. Sequential optimization and reliability assessment (SORA) has made great efforts to improve computation...

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Bibliographic Details
Published in:Journal of mechanical science and technology 2013, 27(6), , pp.1781-1789
Main Authors: Huang, Hong-Zhong, Zhang, Xudong, Meng, De-Biao, Wang, Zhonglai, Liu, Yu
Format: Article
Language:English
Subjects:
Assessments
Computational efficiency
Control
Decoupling
Design engineering
Design optimization
Dynamical Systems
Engineering
Industrial and Production Engineering
Mathematical analysis
Mathematical models
Mechanical Engineering
Optimization
Vibration
기계공학
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Summary:Reliability based design optimization (RBDO) has been widely implemented in engineering practices for high safety and reliability. It is an important challenge to improve computational efficiency. Sequential optimization and reliability assessment (SORA) has made great efforts to improve computational efficiency by decoupling a RBDO problem into sequential deterministic optimization and reliability analysis as a single-loop method. In this paper, in order to further improve computational efficiency and extend the application of the current SORA method, an enhanced SORA (ESORA) is proposed by considering constant and varying variances of random design variables while keeping the sequential framework. Some mathematical examples and an engineering case are given to illustrate the proposed method and validate the efficiency.
ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-013-0429-8