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http://dx.doi.org/10.5139/JKSAS.2005.33.3.018

An Efficient Approach on Reliability Analysis under Multidisciplinary Analysis Systems  

Ahn, Joong-Ki (한국과학기술원 항공우주공학과)
Kwon, Jang-Hyuk (한국과학기술원 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.33, no.3, 2005 , pp. 18-25 More about this Journal
Abstract
Existing methods have performed the reliability analysis using nonlinear optimization techniques. This is mainly due to the fact that they directly apply Multidisciplinary Design Optimization(MDO) frameworks to the reliability analysis formulation. Accordingly, the reliability analysis and the Multidisciplinary Analysis(MDA) are tightly coupled in a single optimizer, which hampers utilizing the recursive and function-approximation based reliability analysis methods such as the Advanced First Order Reliability Method(AFORM). In order to utilize the efficient reliability analysis method under multidisciplinary analysis systems, we propose a new strategy named Sequential Approach on Reliability Analysis under Multidisciplinary analysis systems(SARAM). In this approach, the reliability analysis and the MDA are decomposed and arranged in a sequential manner, making a recursive loop. The efficiency of the SARAM method was verified using three illustrative examples taken from the literatures. Compared with existing methods, it showed the least number of subsystem analyses over other methods while maintaining accuracy.
Keywords
multidisciplinary analysis systems; advanced first order reliability method; global sensitivity equation;
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  • Reference
1 Alexandrov, N. M. and Lewis., R. M, 'Algorithm Perspectives on Problem Formulation in MDO', AIAA-2000-4719, 2000
2 Rackwitz, R. and Fiessler, B., 'Structural Reliability under combined Random Load Sequences', Computers and Structures, Vol.9, 1978, pp.489-494   DOI   ScienceOn
3 Gu, X., Renaud, JE, and Batill, SM, 'An Investigation of Multidisciplinary Design Subject to Uncertainty', AIAA-98-4747, 1998
4 Gu, X. and Renaud, J.E. 'Implementation Study of Implicit Uncertainty Propagation(IUP) in Decomposition-Based Optimization' AIAA-2002- 5416, 2002
5 Du, X. and Chen, W., 'Efficient Uncertainty Analysis Methods for Multidisciplinary Robust Design', AIAA Journal, Vol. 40(3), 2002, pp.545-552   DOI   ScienceOn
6 Du, X. and Chen, W., 'Collaborative Reliability Analysis for Multidisciplinary Systems Design', AIAA-2002-5474, 2002
7 Sobieszczanski-Sobieski, J., 'Sensitivity Analysis and Multidisciplinary Optimization for Aircraft Design: Recent Advances and Results', Journal of Aircraft, Vol. 27(12), 1990, pp. 993-1001   DOI
8 Hasofer, A.M. and Lind, N.C.,'Exact and Invariant Second-moment Code Format', Journal of Engineering Mechanics, Vol. 100(1), 1974, pp. 111-121
9 MDO test suite, NASA MDOB web, http://mdob.Iarc.nasa.gov/
10 Sobieszczanski-Sobieski, J. et.al, 'Bi-Level Integrated System Synthesis(BLISS)', NASA/ TM-1998-208715, 1998