A finite element model of a structure can be updated as certain criteria based on experimental data are satisfied. The updated FE model is considered a better model for future studies in dynamic response prediction, structural modification, and damage identification. A finite element model updating technique incorporating the concept of response surface approximation (RSA) requires no sensitivity calculations and is much easier to implement with a general-purpose finite element code. The proposed updating method was incorporated with MSC. Nastran to solve the updating problem for an H-shaped frame structure. The updated results show that the predicted and experimental modes are correlated well with high MAC values and with a maximum frequency difference of 1.5%. Moreover, the updated parameters provide a physical insight to the modeling of bolted and welded joints of the H-frame structure.
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ASME 7th Biennial Conference on Engineering Systems Design and Analysis
July 19–22, 2004
Manchester, England
ISBN:
0-7918-4174-X
PROCEEDINGS PAPER
Response Surface Method for Updating Dynamic Finite Element Models
Kun-Nan Chen,
Kun-Nan Chen
Tung Nan Institute of Technology, Taipei, Taiwan, R.O.C.
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Cheng-Tien Chang
Cheng-Tien Chang
Tung Nan Institute of Technology, Taipei, Taiwan, R.O.C.
Search for other works by this author on:
Kun-Nan Chen
Tung Nan Institute of Technology, Taipei, Taiwan, R.O.C.
Cheng-Tien Chang
Tung Nan Institute of Technology, Taipei, Taiwan, R.O.C.
Paper No:
ESDA2004-58161, pp. 33-38; 6 pages
Published Online:
November 11, 2008
Citation
Chen, K, & Chang, C. "Response Surface Method for Updating Dynamic Finite Element Models." Proceedings of the ASME 7th Biennial Conference on Engineering Systems Design and Analysis. Volume 2. Manchester, England. July 19–22, 2004. pp. 33-38. ASME. https://doi.org/10.1115/ESDA2004-58161
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