摘要
以两轴角振动台为研究对象,设计角振动台加速度伺服控制器。依据各液压缸间的几何位置关系求取自由度合成及分解矩阵。采用三状态顺馈控制器提高系统的加速度响应频宽,采用三状态反馈控制器改善系统的稳定性,提高系统的阻尼比,采用输入滤波器实现角振动台的加速度控制。利用Matlab/XPC工具箱开发了两轴角振动台实时控制系统。最后,通过实验验证了所设计加速度伺服控制器的有效性。
The design of acceleration servo controller is presented in this paper to improve the control precision of a two-axis vibration table. The degree-of-freedom synthesis and decomposing matrices are obtained based on the geometry relationship of two hydraulic actuators. The three-variable feed-forward controller, which is favorable to improve the stability as well as the system’s damping ratio, is used to extend acceleration frequency band of the system. The input filter is used to achieve acceleration control of the vibration table and a real-time control system of the angle vibration table is developed by using matlab/XPC toolbox. Finally, the effectiveness of the acceleration servo controller was verified by using the experimental results.
出处
《机床与液压》
北大核心
2012年第24期85-88,共4页
Machine Tool & Hydraulics
基金
Sponsored by National Natural Science Foundation of China,Project No.51105047
supported by "the Fundamental Re-search Funds for the Central Universities (2011QN131,2011JC032,2012TD011)
关键词
角振动台
自由度控制
三状态控制器
angle vibration table
acceleration control
three-variable controller
