Research of vibration control based on current mode piezoelectric shunt damping circuit

1st International Conference on Frontiers of Materials Synthesis and Processing

材料科学;化学

Liu, Weiwei^1 ; Mao, Qibo^1

School of Aircraft Engineering, Nanchang Hangkong University, Nanchang, China^1

关键词: Control performance;    Current mode;    Equivalent inductance;    Equivalent resistance;    Optimal damping;    Optimal values;    Piezoelectric shunt damping;    Shunt circuit;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/274/1/012102/pdf
DOI  :  10.1088/1757-899X/274/1/012102

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The piezoelectric shunt damping circuit using current mode approach is imposed to control the vibration of a cantilever beam. Firstly, the simulated inductance with large values are designed for the corresponding RL series shunt circuits. Moreover, with an example of cantilever beam, the second natural frequency of the beam is targeted to control for experiment. By adjusting the values of the equivalent inductance and equivalent resistance of the shunt circuit, the optimal damping of the shunt circuit is obtained. Meanwhile, the designed piezoelectric shunt damping circuit stability is experimental verified. Experimental results show that the proposed piezoelectric shunt damping circuit based on current mode circuit has good vibration control performance. However, the control performance will be reduced if equivalent inductance and equivalent resistance values deviate from optimal values.