厚壁圆筒悬臂梁模糊PID振动控制仿真  

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

作　　者：孙海涛[1] 郭保全[1] 张延平[1] 柴刚[1] 

机构地区：[1]中北大学机电工程学院,山西太原030051

出　　处：《科技创新与生产力》2016年第1期64-67,共4页Sci-tech Innovation and Productivity

摘　　要：针对厚壁圆筒悬臂梁的振动情况进行了分析和振动控制系统仿真,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。根据模糊控制理论,以压电传感器的输出电压V(t)和V(t)的变化率Vc(t)作为模糊PID控制器的输入变量,利用模糊控制规则在线对PID参数进行整定。通过Simulink建立了基于模糊PID控制器的悬臂梁振动控制模型,继而进行仿真。仿真结果表明,基于压电材料的模糊PID控制方法对厚壁圆筒悬臂梁的振动抑制作用非常有效。In order to provide theoretical guidance for the study of the cannon gun tube vibration control, this paper analyzes the vibration of the thick wall cylinder cantilever beam and the simulation of vibration control system. Firstly, modal analysis is carried out on the cantilever beam structure vibration dynamics analysis, and the sensing equation and piezoelectric actuator equation is established. According to the theory of fuzzy control, with piezoelectric sensor output voltage V（t） and Vc（t） which is the rate of change of V （t） as the input variable of fuzzy PID controller, we set the PID parameter online through the fuzzy control rule. The dynamic control model based on the fuzzy PID controller is established based on Simulink. The sim- ulation results show that the method of the fuzzy PID controller based on the piezoelectric material is very effective when it is used in the suppression of the vibration of the thick wall cylinder cantilever beam.

关 键 词：模糊控制 PID 悬臂梁 主动控制 

分 类 号：TB535[理学—物理]