Fuzzy finite element model updating of bridges by considering the uncertainty of the measured modal parameters

2012 ◽  
Vol 55 (11) ◽  
pp. 3109-3117 ◽  
Author(s):  
Yang Liu ◽  
ZhongDong Duan
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Model Updating ◽  
Element Model ◽  
Modal Parameters ◽  
Finite Element Model Updating ◽  
Fuzzy Finite Element

scholarly journals Fuzzy finite element model updating of the DLR AIRMOD test structure

2017 ◽  
Vol 52 ◽  
pp. 512-526 ◽  
Author(s):  
H. Haddad Khodaparast ◽  
Y. Govers ◽  
I. Dayyani ◽  
S. Adhikari ◽  
M. Link ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Model Updating ◽  
Element Model ◽  
Test Structure ◽  
Finite Element Model Updating ◽  
Fuzzy Finite Element

Finite Element Model Updating of a High Building based on the experimental modal parameters

2014 ◽  
Vol 102 (8) ◽  
pp. 2844-2851
Author(s):  
Khanh Nguyen ◽  
Olga Rio ◽  
Borja Frutos ◽  
Pedro Avellanosa ◽  
Alejandro Rodriguez
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Model Updating ◽  
Element Model ◽  
Modal Parameters ◽  
Finite Element Model Updating ◽  
High Building

scholarly journals Experimental Studies on Finite Element Model Updating for a Heated Beam-Like Structure

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
Kaipeng Sun ◽  
Yonghui Zhao ◽  
Haiyan Hu
Keyword(s):  
Finite Element ◽  
High Temperature ◽  
Finite Element Model ◽  
Natural Frequencies ◽  
Model Updating ◽  
Element Model ◽  
Modal Parameters ◽  
Finite Element Model Updating ◽  
Time Varying ◽  
The Finite Element Model

An experimental study was made for the identification procedure of time-varying modal parameters and the finite element model updating technique of a beam-like thermal structure in both steady and unsteady high temperature environments. An improved time-varying autoregressive method was proposed first to extract the instantaneous natural frequencies of the structure in the unsteady high temperature environment. Based on the identified modal parameters, then, a finite element model for the structure was updated by using Kriging meta-model and optimization-based finite-element model updating method. The temperature-dependent parameters to be updated were expressed as low-order polynomials of temperature increase, and the finite element model updating problem was solved by updating several coefficients of the polynomials. The experimental results demonstrated the effectiveness of the time-varying modal parameter identification method and showed that the instantaneous natural frequencies of the updated model well tracked the trends of the measured values with high accuracy.

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