柔性梁振动控制系统设计

摘要

The piezoelectric self-sensing actuator takes as the sensor and actuator.The dynamical equation of the piezoelectric intelligent beam is set up and the principle and the method of the active vibration control are analyzed.The active vibration control of the flexible cantilever beam is studied.This paper presents the principle and the method for the vibration of the flexible cantilever beam piezoelectric active control structure by modal analysis.Moreover,the optimal control based on LQR is applied and the corresponding execution is yielded for suppressing the vibration of the cantilever in order to control the vibration.%采用压电自感知执行器作为传感器和执行器,对柔性悬臂梁的振动情况进行研究,建立柔性悬臂梁系统的动力学方程,通过模态分析压电结构对柔性悬臂梁振动主动控制的原则和方法.利用最优控制理论得到对振动进行计算得到的最优控制信号来抑制悬臂梁的振动,完成对振动进行控制的目的.