【摘要】 OpenFresco软件使很多通用有限元软件成功应用于混合实验中,大大提高了混合实验结果的精度。OpenFresco相当于接口软件,能够与多种实验控制相连建立混合实验系统。该文选用OpenSees做为有限元分析软件、LabVIEW作为实验控制目标、dSpace作为实验控制器建立了一套混合实验系统,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:有限元软件OpenSees、接口程序OpenFresco、实验控制LabVIEW、控制器dSpace之间的通讯性能满足混合实验的要求,试验系统具有较好的稳定性和精度。更多还原

【Abstract】 The newly developed OpenFresco software makes several finite element softwares available for hybrid tests,and has been introduced into hybrid testing system for the ability of accurately and economically analyzing the seismic performance of structures.By using the OpenFresco software,many experimental control objects are available for the hybrid systems.This paper proposes one hybrid testing system by using the finite element software OpenSees,interface software OpenFresco,experimental control LabVIEW and controller dSpace,and validates the effectiveness and accuracy of the proposed hybrid testing system numerically and experimentally.It is shown that the OpenSees,OpenFresco,LabVIEW and dSpace can work well together to conduct hybrid tests,and the proposed hybrid testing system has excellent performance in terms of stability and accuracy.更多还原