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Algorithms 2016, 9(2), 35; doi:10.3390/a9020035

Application of the Energy-Conserving Integration Method to Hybrid Simulation of a Full-Scale Steel Frame

1,2,* , 1,2
,
1,2,3
and
1,2
1
School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
2
Key Lab of Structures Dynamic Behavior and Control, Harbin Institute of Technology, Ministry of Education, Harbin 150090, China
3
Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China
*
Author to whom correspondence should be addressed.
Academic Editor: Stefano Mariani
Received: 16 March 2016 / Revised: 11 May 2016 / Accepted: 18 May 2016 / Published: 21 May 2016
View Full-Text   |   Download PDF [4719 KB, uploaded 21 May 2016]   |  

Abstract

The nonlinear unconditionally stable energy-conserving integration method (ECM) is a new method for solving a continuous equation of motion. To our knowledge, there is still no report about its application on a hybrid test. Aiming to explore its effect on hybrid tests, the nonlinear beam-column element program is developed for computation. The program contains both the ECM and the average acceleration method (AAM). The comparison of the hybrid test results with thesetwo methods validates the effectiveness of the ECM in the hybrid simulation. We found that the energy error of hybrid test by using ECM is less than that of AAM. In addition, a new iteration strategy with reduction factor is presented to avoid the overshooting phenomena during iteration process with the finite element program. View Full-Text
Keywords: energy-conserving method; average acceleration method; hybrid simulation energy-conserving method; average acceleration method; hybrid simulation
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Pan, T.; Wu, B.; Chen, Y.; Xu, G. Application of the Energy-Conserving Integration Method to Hybrid Simulation of a Full-Scale Steel Frame. Algorithms 2016, 9, 35.

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