LabVIEW&Matlab在半主动悬挂系统实验台数据采集与控制系统中的应用  

Application of LabVIEW & Matlab in Data Acquisition and Control System for Semi-Active Suspension Test Bed

作　　者：张进秋[1] 冯占宗[1] 高永强[1] 王洪涛[1] 

机构地区：[1]装甲兵工程学院,北京100072

出　　处：《噪声与振动控制》2009年第2期130-133,共4页Noise and Vibration Control

基　　金："十一五"国防预研项目

摘　　要：利用LabVIEW&Matlab设计了悬挂系统实验台数据采集与控制系统,实现了LQG(Linear QuadraticGaussian)最优控制算法下悬挂系统主动/半主动振动控制。在LabVIEW环境下实时采集悬挂系统振动信号,并调用MATLAB Script计算状态反馈增益矩阵、Kalman滤波器的增益矩阵,得出线性二次型Gauss最优控制控制策略下最优控制力、半主动控制力数值;然后将此数值作为伺服信号,通过串口通讯,分别控制车速模拟系统、脉宽调制(PWM)电源进而控制作动器,实现不同车速下悬挂系统主动/半主动振动控制。实验结果表明,应用LabVIEW&Matlab设计的数据采集与控制系统能满足实验需要。A testing data acquisition and control system for a semi-active suspension test machine is designed using LabVIEW＆Matlab codes. The Linear Quadratic Gaussian （LQG） optimal control algo- rithms are used to realize the active and semi-active vibration control for the suspension system. In the environment of LabVIEW, the real-time data acquisition of vibration signal of the suspension system is carried out. Employing MATLAB Script, state-feedback-gain matrix and Kalman-filter-gain matrix are calculated. Under the LQG optimal control, the values of optimal control force and semi-active control force are obtained. Finally, these values are transferred to PWM （Pulse-Width Modulation） power supply and actuator through a serial interface. The experimental results show that the data acquisition and control system designed with LabVIEW ＆ Matlab can meet the requirement of testing.

关 键 词：振动与波 LabVIEW&Matlab节点 数据采集与控制系统 LQG最优控制 

分 类 号：U463.33[机械工程—车辆工程]