摘要
对电液伺服Stewart平台用于低频、重载工况下的空间多自由度振动激励进行了仿真研究。设计了伺服液压缸,构建了液压Stewart平台的CAD模型。由平台单通道电液位置伺服系统的数学模型建立了其仿真模型,根据选定的系统参数,确定了控制策略,对其响应特性进行了分析。在Simulink环境下构建了Stewart平台激振系统的整体仿真模型,对激振系统进行了单自由度加载和多自由度加载两种工况下的仿真试验,对激励波形复现精度进行了分析。
The vibration stimulation of electro-hydraulic Stewart type platform, which is a muhi-DOF vibration stimulation device, was studied under low-frequency and heavy-duty working circumstances. The CAD model of the platform was established by the SolidWorks. The single actuating channel model of the Stewart vibration stimulation device was established. By means of the selected parameters, the servo control strategy was chosen, and the simulation model of the servo actuator was built. The response properties of the servo actuator were analyzed. The entire model of the Stewart vibration stimulation device was constructed through Simulink tools, and two different loading simulation experiments were carried out. The reproducing accuracy of the input signal was analyzed.
出处
《机床与液压》
北大核心
2009年第2期143-146,149,共5页
Machine Tool & Hydraulics
