基于有限元软件OpenSEES的混合试验系统及试验验证

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (22) : 45-52.

论文

基于有限元软件OpenSEES的混合试验系统及试验验证

许国山1，郝伟2，陈永盛1，吴斌1

作者信息 +

Experimental Validation of the Hybrid Testing System Based on Finite Element Software OpenSEES

XU Guo-shan1, HAO Wei2, CHEN Yong-sheng1, WU Bin1

Author information +

文章历史 +

摘要

用混合试验研究结构在强震下的抗震性能时，仍然选择简单的线性模型对数值子结构进行模拟显然难以保证实验结果的精度。为了解决这个问题，本文将有限元软件OpenSEES引入混合试验中以提高数值子结构的模拟精度。本文主要研究基于有限元软件OpenSEES和接口软件OpenFresco、实验控制dSPACE建立的混合试验系统，并通过混合模拟和混合试验验证所建立混合试验系统的有效性和精度。研究结果表明：数值子结构内核OpenSEES、接口程序OpenFresco以及实验控制dSPACE之间具有良好的通讯性能，能够满足混合实验的要求；试验系统具有较好的稳定性和精度。

Abstract

The hybrid testing method has been used world widely for accurately and economically disclosing the seismic performance of structures, and plays more and more important roles on seismic investigation in nowadays. However, the numerical substructures are normally simulated with simple linear models, and the accuracy of testing results will be greatly reduced if serious elastic-plastic deformation occurs in the structures when suffering a strong earthquake. For solving this problem, this paper simulates numerical substructures by using the professional finite element software OpenSEES. This paper proposes the hybrid testing system by using the finite element software OpenSEES, interface software OpenFresco, and experimental control dSPACE, and validates the effectiveness and accuracy of the proposed hybrid testing system numerically and experimentally. It is shown that the OpenSEES, OpenFresco, and dSPACE can work well together to conduct hybrid tests, and the proposed hybrid testing system behaviors excellent performance in terms of stability and accuracy.

导出引用

许国山;郝伟;陈永盛;&#;吴斌. 基于有限元软件OpenSEES的混合试验系统及试验验证[J]. 振动与冲击, 2012, 31(22): 45-52

XU Guo-shan;HAO Wei;CHEN Yong-sheng;WU Bin . Experimental Validation of the Hybrid Testing System Based on Finite Element Software OpenSEES[J]. Journal of Vibration and Shock, 2012, 31(22): 45-52