厚壁圆筒悬臂梁振动主动控制仿真

Simulation of Control Used in Vibration of the Thick Wall Cylinder Cantilever Beam

针对厚壁圆筒悬臂梁的振动情况进行了最优控制和仿真,旨在为火炮身管振动控制研究提供理论指导。首先运用模态分析法对悬臂梁结构进行振动动力学分析,并建立了传感方程和压电作动方程。根据最优反馈控制理论,通过二次型性能指标的计算,确定了作用于压电作动器的最优控制信号。仿真结果表明,基于压电材料的最优控制方法对厚壁圆筒悬臂梁的振动抑制作用非常有效。

Aims to provide theoretical guidance for the study of the cannon gun tube vibration control, This paper analyze the vibration of the thick wall cylinder cantilever beam and the vibration control system simulation. Firstly, modal analysis was carried out on the cantilever beam structure vibration dynamics analysis, and the sensing equation and piezoelectric actu- ator equation is established. According to the optimal feedback control theory, the effects on the optimal control of piezoelec- tric actuator signal is determined through the computation of quadratic performance index .The simulation results show that the optimal control method based on the piezoelectric material of thick wall cylinder cantilever beam vibration suppression ef- fect is very effective.