Structural Physical Parameter Identification Based on Empirical Genetic-Simplex Algorithm and Structural Dynamic Response

Abstract:

In the complex conversion analysis of multi-degrees of freedom，large calculation count needed in each calculation step of Genetic Algorithm limits the running speed of genetic algorithm. So the positive calculation count to be reduced is an effective method to enlarge the range of GA’s application. Empirical Genetic-Simplex Algorithm (EGSA) proposed in this paper is one of the effective methods to solve the problem. This method is applied to structural physical parameters identification based on the structural dynamic response. The result shows that EGSA has many advantages on precision, efficiency in searching, strong to resist the noise, and good adaptation to the incomplete information.

• Periodical: Applied Mechanics and Materials (Volumes 94-96)
• Pages: 1998-2004
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.94-96.1998
• Online since: September 2011
• Authors: Li Ping Jiang, Wei Liu, Lei Shi, Yan Liu
• Keywords: Empirical Genetic-Simplex Algorithm, Structural Dynamic Responses, Structural Physical Parameter

References

[1] Du, X.L., Zeng, D., An Algorithm for Inverse Analysis of Structural Physical Parameters, J. Jun. China Civil Engineering Journal, vol.37 (N6), 23-29,2004 (in Chinese).

[2] Wen, L.H., Identification of structural parameter by test modal parameter J. Engineering Mechanics, 62-68.1997(in Chinese).

[3] Koh C. G., Hong B. and Liaw C. Y., Parameter Identification of Large Structural Systems in Time Domain, J. Structural Engineering, Aug. 2000, 957-963

DOI: 10.1061/(asce)0733-9445(2000)126:8(957)

[4] Du, X.L., Zeng, D., An Effective Algorithm for Global Optimization: Evolutionary-Simplex Algorithm, China Civil Engineering Journal, vol.36 (N5), 46-51, 2003 (in Chinese).

[5] Du, X.L., Zeng, D., Structural Physical Parameter Identification Based on Evolutionary-Simplex Algorithm and Structural Dynamic Response, Earthquake Engineering and Engineering Vibration, vol.2 (N2), 225-236.2003.

DOI: 10.1007/s11803-003-0006-8

[6] Du, X.L., Zeng, D., An Algorithm for Inverse Analysis of Structural Physical Parameters, J. Jun. China Civil Engineering Journal, vol.37 (N6), 23-29,2004 (in Chinese).

[7] Du, X.L., Han, L. and Jiang, L.P., An Efficient Global Optimization Algorithm: Empirical Genetic Algorithm, Nov. Journal of Beijing University of Technology 38-41, 2006 (in Chinese).

[8] Du X.L., Wang Z.H., Interior stablity analysis method of soil-nailed structure based on empirical genetic-simplex algorithm, Apr. Chinese Journal of Geotechnical Engineering Vol.29 No.4,2007 (in Chinese).

[9] Du X.L., Zhao,M., and Jiang, L.P., Stability And Identification for Discrete-time Rational Approximation of Foundation Frequency Response,14th World Conference on Earthquake Engineering, 2009.14-0292.

[10] Jiang L.P., Du X.L., An Algorithm for Identifying Structural Physical Parameters, Aug. Journal of Beijing University of Technology, Vol.35 No.8, (2009)