Abstract
Here, the active vibration control equation was derived from the finite element dynamic equations of a linear elastic piezoelectric structure. Finite element model of a laminated piezoelectric structure for modal analysis and vibration control was established by use of ANSYS/APDL parameter language. Based on the host structure modal strain energy distribution, a new objective function was developed. Taking actuator/sensor position order numbers as optimization variables, the optimization problem of a smart structure represented with discrete variables was formulated and solved using a binary-coded genetic algorithm (GA). Taking a clamped composite laminated piezoelectric plate as a numerical example, considering a direct proportional feedback control law, the control performance of the objective modal vibrations was studied with optimal collocated locations of actuator/sensor. Numerical results showed that the optimal solution with the genetic algorithm has better vibration control effect based on the modal strain energy distribution.
Original language | English (US) |
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Pages (from-to) | 161-166 |
Number of pages | 6 |
Journal | Zhendong yu Chongji/Journal of Vibration and Shock |
Volume | 32 |
Issue number | 11 |
State | Published - Jun 15 2013 |
All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Acoustics and Ultrasonics
- Mechanical Engineering