Dynamic characteristics of a working platform supported by an AMG  

作　　者：张钢 

机构地区：[1]School of Mechatronics Engineering and Automation,Shanghai University,Shanghai 200072,P.R.China

出　　处：《High Technology Letters》2008年第2期193-198,共6页高技术通讯（英文版）

基　　金：the National High Technology Research and Development Program of China(No2001AA423310)

摘　　要：A coupled electromechanical dynamic model for a working platform supported by an active magneticguide(AMG)is set up according to the special stiffness and damping theory of maglev system and theunique vibration of the working platform for a machine tool.The dynamic characteristics of a workingplatform supported by an AMG are studied using different groups of control parameters.Results show thatthe dynamic characteristics of the platform system,such as critical vibration frequency,vibration modeand so on,can be improved by adjusting the control parameters.This research offers theoretical supportfor ultra-high-speed and ultra-precise machine working platform designs,including the structure of plat-forms,the design of electromagnets,and the establishment of the control parameters.A coupled electromechanical dynamic model for a working platform supported by an active magnetic guide （AMG） is set up according to the special stiffness and damping theory of maglev system and the unique vibration of the working platform for a machine tool. The dynamic characteristics of a working platform supported by an AMG are studied using different groups of control parameters. Results show that the dynamic characteristics of the platform system, such as critical vibration frequency, vibration mode and so on, can be improved by adjusting the control parameters. This research offers theoretical support for ultra-high-speed and ultra-precise machine working platform designs, including the structure of platforms, the design of electromagnets, and the establishment of the control parameters.

关 键 词：working platform active magnetic guide （AMG） dynamic characteristics maglev system 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]