Volume 9, Issue 1 (1-2019)
IJOCE 2019, 9(1): 65-77 |
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Mashayekhi M, Estekanchi H E, Vafai H. SIMULATION OF ENDURANCE TIME EXCITATIONS USING INCREASING SINE FUNCTIONS. IJOCE 2019; 9 (1) :65-77
URL: http://ijoce.iust.ac.ir/article-1-375-en.html
URL: http://ijoce.iust.ac.ir/article-1-375-en.html
Abstract: (16314 Views)
Endurance Time method is a time history dynamic analysis in which structures are subjected to increasing excitations. These excitations are known as endurance time excitation functions (ETEF). This study proposes a new method for generating ETEFs. In the proposed method, a new basis function for representing ETEFs is introduced. This type of ETEFs representation creates an intelligent space for this ETEFs simulating optimization problem. The proposed method is then applied in order to simulate new ETEFs. To investigate the efficiency of this proposed optimization space, newly generated ETEFs are compared with those simulated by conventional approaches. Results show an improvement in the accuracy of ETEFs as well as the reduction in the required computational time.
Keywords: endurance time method, time history dynamic analysis, unconstrained nonlinear optimization, artificial motion.
Type of Study: Research |
Subject:
Optimal analysis
Received: 2018/06/1 | Accepted: 2018/06/1 | Published: 2018/06/1
Received: 2018/06/1 | Accepted: 2018/06/1 | Published: 2018/06/1
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