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http://dx.doi.org/10.12989/sem.2004.18.2.137

Optimization of active vibration control for random intelligent truss structures under non-stationary random excitation  

Gao, W. (School of Electromechanical Engineering, Xidian University)
Chen, J.J. (School of Electromechanical Engineering, Xidian University)
Hu, T.B. (School of Electromechanical Engineering, Xidian University)
Kessissoglou, N.J. (School of Mechanical and Manufacturing Engineering, The University of New South Wales)
Randall, R.B. (School of Mechanical and Manufacturing Engineering, The University of New South Wales)
Publication Information
Structural Engineering and Mechanics / v.18, no.2, 2004 , pp. 137-150 More about this Journal
Abstract
The optimization of active bars' placement and feedback gains of closed loop control system for random intelligent truss structures under non-stationary random excitation is presented. Firstly, the optimal mathematical model with the reliability constraints on the mean square value of structural dynamic displacement and stress response are built based on the maximization of dissipation energy due to control action. In which not only the randomness of the physics parameters of structural materials, geometric dimensions and structural damping are considered simultaneously, but also the applied force are considered as non-stationary random excitation. Then, the numerical characteristics of the stationary random responses of random intelligent structure are developed. Finally, the rationality and validity of the presented model are demonstrated by an engineering example and some useful conclusions are obtained.
Keywords
optimization; non-stationary random excitation; random intelligent truss structures; reliability constraints; active bars' placement; feedback gains;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 1
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