Distributed Piezoelectric Element Method for Vibration Control of Smart Plates
Distributed Piezoelectric Element Method for Vibration Control of Smart Plates
复制标题
智能板振动控制的分布式压电元件法
作者：
Dongchang Sun;Dajun Wang;Z. L. Xu
提出了一种新的板的主动控制方法，包括压电模传感器和振型执行器的设计方法。通过将所有压电层切割成几个独立的单元，设计了压电式模态传感器和振型执行器。由传感器元件产生的电荷和电流可以得到模态坐标和模态速度，通过调制施加在压电驱动器上的电压的空间分布来设计模态驱动器。给出了一种智能板的模态控制方案。此外，还讨论了分段致动器片层对板材可控性的改善。
A new method for active control of plates is presented that includes methods for designing piezoelectric modal sensors and modal actuators. The piezoelectric modal sensor and modal actuator are designed by cutting all of the piezoelectric layers into several independent elements. The modal coordinates and the modal velocities can be obtained from the charges and currents generated by the sensor elements, and the modal actuator is designed by modulating the spatial distribution of voltage applied on the piezoelectric actuator. A scheme for modal control of smart plates is given. Moreover, improvement of the controllabilty of the plates due to segmentation actuator lamina is discussed.