Investigation of Hybrid Simulation With Model Updating Compared to an Experimental Shake Table Test

Frontiers in Built Environment

Ge Ou¹  Shirley Dyke²  Ge Yang³  Bin Wu³ 

[1] Department Civil and Environmental Engineering, University of Utah, Salt Lake City, UT, United States;Lyles School of Civil Engineering, Purdue University, West Lafayette, IN, United States;School of Civil Engineering and Architecture, Wuhan University of Technology, Hubei, China;School of Mechanical Engineering, Purdue University, West Lafayette, IN, United States;

关键词: hybrid simulation;    model updating;    finite element method (FEM) model;    Bouc-Wen model;    steel structure;    shake table testing;   

DOI  :  10.3389/fbuil.2020.00103

来源: DOAJ

【 摘 要 】

In hybrid simulation, response time history measured from an experimental substructure can be utilized to identify the model associated with the tested specimen in real time. To improve the modeling accuracy, the updated model parameters can substitute the initial parameters of similar components (as the tested specimen) that reside in the numerical substructure. In this study, a detailed investigation into the fidelity improvement using model updating in hybrid simulation has been carried out. This study has focused on both local and global assessment of hybrid simulation with model updating (HSMU) by comparing HSMU with conventional simulation and shake table testing. In the local assessment, the updating efficiency with different nonlinemodels (one phenomenological model and one FEM model) have been illustrated; in the global assessment, the HSMU response time histories have been compared to experimental shake table testing. Observations and comments on model selection, parameter convergence, and time and frequency domain performance of HSMU have been provided.

【 授权许可】

Unknown