Using the direct proportional feedback control, active vibration control equations are derived from the dynamic equations of linear elastic piezoelectric laminated structure. Piezoelectric actuator/sensor are modeled by the three-dimension eight-node coupled element. The host structure is modeled by the three-dimension eight-node element. The finite element model of piezoelectric smart structure has been developed by use of ANSYS/APDL parameter language. The optimal actuator/sensor location problem is formulated in the framework of a zero-one optimization problem which is solved using genetic algorithm (GA). Taking piezoelectric smart cantilever plate structure as numerical examples, smart structure under transient load collocated actuator/sensor at optimal and general locations is studied. To further verify the correctness of the presented method, the control effect of system under harmonic load is studied. Numerical results show the validity and effectiveness of using GA for searching optimal placement of the sensor-actuator pairs in active structural vibration control.
|Original language||English (US)|
|Number of pages||7|
|Journal||Guti Lixue Xuebao/Acta Mechanica Solida Sinica|
|State||Published - Aug 2011|
All Science Journal Classification (ASJC) codes
- Mechanics of Materials