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Structural Engineering and Mechanics Volume 64, Number 2, October25 2017 , pages 271-278 DOI: https://doi.org/10.12989/sem.2017.64.2.271 |
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A new conjugate gradient algorithm for solving dynamic load identification |
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Lin J. Wang, Qi C. Deng and You X. Xie
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| Abstract | ||
| In this paper, we propose a new conjugate gradient method which possesses the global convergence and apply it to solve inverse problems of the dynamic loads identification. Moreover, we strictly prove the stability and convergence of the proposed method. Two engineering numerical examples are presented to demonstrate the effectiveness and speediness of the present method which is superior to the Landweber iteration method. The results of numerical simulations indicate that the proposed method is stable and effective in solving the multi-source dynamic loads identification problems of practical engineering. | ||
| Key Words | ||
| inverse problems; multi-source dynamic loads identification; finite element method; conjugate gradient method | ||
| Address | ||
| Lin J. Wang: Hubei Key Laboratory of Hydroelectric Machinery Design and Maintenance, College of Mechanical and Power Engineering,China Three Gorges University, Yichang, Hubei 443002, PR China; School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, QLD 4001, Australia Qi C. Deng: Hubei Key Laboratory of Hydroelectric Machinery Design and Maintenance, College of Mechanical and Power Engineering, China Three Gorges University, Yichang, Hubei 443002, PR China You X. Xie: College of Science Technology, China Three Gorges University, Yichang, Hubei 443002, PR China | ||