Volume 1, Issue 1 (3-2011)
IJOCE 2011, 1(1): 155-166 |
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Alavi S, Ahmadi-Nedushan B, Rahimi Bondarabadi H. TOPOLOGY OPTIMIZATION OF STRUCTURES UNDER TRANSIENT LOADS. IJOCE 2011; 1 (1) :155-166
URL: http://ijoce.iust.ac.ir/article-1-13-en.html
URL: http://ijoce.iust.ac.ir/article-1-13-en.html
Abstract: (25151 Views)
In this article, an efficient methodology is presented to optimize the topology of structural systems under transient loads. Equivalent static loads concept is used to deal with transient loads and to solve an alternate quasi-static optimization problem. The maximum strain energy of the structure under the transient load during the loading interval is used as objective function. The objective function is calculated in each iteration and then the dynamic optimization problem is replaced by a static optimization problem, which is subsequently solved by a convex linearization approach combining linear and reciprocal approximation functions.
The optimal layout of a deep beam subjected to transient loads is considered as a case study to verify the effectiveness of the presented methodology. Results indicate that the optimal layout is dependant of the loading interval.
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