Structural Engineering and Mechanics

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A new conjugate gradient algorithm for solving dynamic load identification

  • Wang, Lin J. (Hubei Key Laboratory of Hydroelectric Machinery Design and Maintenance, College of Mechanical and Power Engineering, China Three Gorges University) ;
  • Deng, Qi C. (Hubei Key Laboratory of Hydroelectric Machinery Design and Maintenance, College of Mechanical and Power Engineering, China Three Gorges University) ;
  • Xie, You X. (College of Science Technology, China Three Gorges University)
  • Received : 2017.01.06
  • Accepted : 2017.09.18
  • Published : 2017.10.25
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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.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China, Hubei Chenguang Talented Youth Development Foundation

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