压电悬臂板振动抑制研究

Research on Vibration Suppression of Piezoelectric Cantilever Plate

本文以铝制悬臂板振动系统为研究对象,利用压电陶瓷片的正逆压电效应,组建了一套悬臂板振动控制系统。通过有限元法和试验模态分析方法,分别得到铝制悬臂板的第一、第二、第三阶固有频率和振幅。根据有限元模态分析和试验模态分析的结果,用反演的方法得到在抑制后每一阶固有频率下的振幅大小。

In this paper, the vibration system of an aluminum cantilever plate is taken as an object of study. A set of vibration control system for a cantilever plate is established by using the positive and negative piezoelectric effects of the piezoelectric ceramic. The first, second, third order natural frequencies and amplitudes of the cantilever plate are obtained by the finite element method and the experimental modal analysis method. According to the results of finite element modal analysis and experimental modal analysis, the amplitude of the natural frequency at each natural frequency is obtained by the inversion method.