摘要
提出一种两自由度运动平台以实现俯仰和横滚运动。测控系统采用多级控制方式,上级计算机与下级计算机之间通过以太网进行通讯;驱动系统采用非对称阀控制非对称液压缸,利用动压反馈校正的方法提高系统阻尼比,从而改善系统的非线性特性。
A two degree of freedom platform which can realize pitching and rolling motion is introduced. The control system selects the ladder control method and the communication between the upper computer and the lower computer is realized through the Ethernet. The driving system uses the asymmetrical valve to control the asymmetrical hydraulic cylinder, uses the dynamic pressure feedback method to enhance damping ratio of the system, and therefore nonlinear characteristics of the system can be improved.
出处
《林业机械与木工设备》
2008年第6期43-45,共3页
Forestry Machinery & Woodworking Equipment
关键词
运动平台
液压伺服系统
控制系统
motion platform
hydraulic servo system
control system
