Finite element model updating in structural dynamics by using the response surface method

2010 ◽  
Vol 32 (8) ◽  
pp. 2455-2465 ◽  
Author(s):  
Wei-Xin Ren ◽  
Hua-Bing Chen
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Response Surface ◽  
Response Surface Method ◽  
Structural Dynamics ◽  
Model Updating ◽  
Element Model ◽  
Finite Element Model Updating ◽  
Surface Method

Static Finite Element Model Updating for Special-Shaped Bridge Based on Response Surface Method

2012 ◽  
Vol 236-237 ◽  
pp. 611-616
Author(s):  
Han Bing Liu ◽  
Yan Jun Song ◽  
Ya Feng Gong
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Response Surface ◽  
Response Surface Method ◽  
Model Updating ◽  
Design Method ◽  
Uniform Design ◽  
Element Model ◽  
Finite Element Software ◽  
Surface Method

The establishment of an effective finite element model for bridge structure is essential in the health monitoring system for Bridge. A new updating method for static model using response surface method is proposed in this paper, and the main procedures are given with an example of a special-shaped bridge. Firstly, the bridge deflection and strain data in designed load case are obtained. Several groups of combined parameters which are chosen based on the principle of uniform design method are selected to conduct calculation through finite element software. Finally through response surface fitting and optimization, the updated bridge finite element model is obtained. The results show that the updated model is approximate to the real bridge and this updating method is rational and practical.

Finite element model updating of a satellite honeycomb sandwich plate in structural dynamics

2021 ◽  
pp. 095605992110016
Author(s):  
Ali Aborehab ◽  
Mohamed Kamel ◽  
Ahmed Farid Nemnem ◽  
Mohammed Kassem
Keyword(s):  
Finite Element ◽  
Design Of Experiments ◽  
Finite Element Model ◽  
Response Surface ◽  
Sandwich Plate ◽  
Model Updating ◽  
Element Model ◽  
Finite Element Model Updating ◽  
Surface Method ◽  
Honeycomb Sandwich

The honeycomb sandwich structures have a crucial participation in aerospace industry, especially in the design of satellite structures due to their exceptional mechanical properties. The equivalent finite element modeling of such structures is initially presented through the implementation of modal analysis via the three-layered sandwich theory. Subsequently, the computational results are validated by carrying out an experimental modal testing. In addition, sensitivity analysis based upon design of experiments and parameters correlation, is executed for the sake of selecting the most appropriate design parameters for the optimization problem. Finally, finite element model updating of a honeycomb sandwich plate is thoroughly introduced using three optimization algorithms including genetic algorithms, adaptive-multiple optimization, and response surface method. A good agreement between the previously-mentioned optimization algorithms is obtained. Meanwhile, response surface method and its related design of experiments tool succeed in avoiding such time-consuming process and reduce the involved computational expense with an acceptable accuracy.

Bridge Finite Element Model Updating Based on Uniform Design and Response Surface Method

2013 ◽  
Vol 838-841 ◽  
pp. 1118-1121
Author(s):  
Zhao Xia Wu ◽  
Xue Shuang Fan ◽  
Yuan Long Shao ◽  
Li Peng Hu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Response Surface ◽  
Model Updating ◽  
Uniform Design ◽  
Element Model ◽  
Load Test ◽  
Finite Element Model Updating ◽  
Static Load Test ◽  
Surface Method

An accurate finite element model is a necessity for analyzing the bridge's health status. The uniform design combined with response surface finite element model updating method is proposed in this paper. The error of data obtained from updating model is less than 3% by contrasting static load test data in Shihe Bridge.The result shows that the updating model has a good fit with the actual bridge.

A new method for finite element model updating in structural dynamics

2010 ◽  
Vol 24 (7) ◽  
pp. 2137-2159 ◽  
Author(s):  
J.L. Zapico-Valle ◽  
R. Alonso-Camblor ◽  
M.P. González-Martínez ◽  
M. García-Diéguez
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Structural Dynamics ◽  
Model Updating ◽  
Element Model ◽  
New Method ◽  
Finite Element Model Updating
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