STUDY ON ACTIVE VIBRATION CONTROL OF CANTILEVER BEAM USING PIEZOELECTRIC SELF-SENSING ACTUATOR IN TIME-SHARING FASHION
Dong Weijie1;Jia Yanli2;Yang Minggang2
1.School of Electronic and Information Engineering, Dalian University of Technology, Dalian, 116024; 2. Department of Electronic Engineering, Huaian College of Information Technology, Huaian, 223003
Abstract：A method that a piezoelectric ceramic sensor is also used as an actuator during the sampling intervals in the application of active vibration control is proposed. A sensing-actuating period consists of sensing timeslot, actuation timeslot and discharge timeslot. In the three timeslots, vibration measurement, vibration control and releasing the residual charge are implemented respectively. Sequential circuit controls the switching of the three timeslots. Technical details such as sequential logic design and switching circuit are discussed. Experiments prove that the switching between sensing and actuation does not affect the function of piezoelectric sensor. In addition, the actuation capability lies on the actuation timeslot percentage of the sensing-actuating period. Based on cantilever’s modal analysis, the first modal control of cantilever beam with independent modal control and linear quadratic optimal control algorithms is implemented by using piezoelectric sensor and actuator in time-sharing fashion. The experimental results prove that the decay time of controlled cantilever beam reduces to 20% of the uncontrolled one.
董维杰;贾艳丽;杨明刚. 基于分时复用压电自感知执行器的悬臂梁振动主动控制研究[J]. , 2009, 28(10): 150-153.
Dong Weijie;Jia Yanli;Yang Minggang. STUDY ON ACTIVE VIBRATION CONTROL OF CANTILEVER BEAM USING PIEZOELECTRIC SELF-SENSING ACTUATOR IN TIME-SHARING FASHION. , 2009, 28(10): 150-153.
2009, Vol. 28 
