Journal
COMPUTERS & STRUCTURES
Volume 87, Issue 3-4, Pages 246-253Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compstruc.2008.10.001
Keywords
Robust optimization; Truss structures; Global optimality; SDP-relaxation; Lagrange dual
Funding
- NCET
- Ministry of Education, National Natural Science Foundation [10772037, 10721062]
- China and the National Key Basic Research Special Foundation of China [2006CB601205]
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A new method is presented to obtain the confidence structural responses of truss structures under ellipsoid static load uncertainty. By using a combination of duality theorem and SDP relaxation technique, we reformulate the original convex maximization problem as a relaxed convex SDP problem, which can be solved with global optimality. Numerical examples demonstrate the effectiveness of the proposed approach. (C) 2008 Elsevier Ltd. All rights reserved.
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