Effects of Harmonic Current on Dynamic Performances of High Speed Motorized Spindles

摘要：

　　In order to analyze effects of harmonics on dynamic performances of high speed motorized spindles, the equivalent circuit of harmonic current is developed on the basis of the mechanism of harmonic current, and the formulae for calculating vibration harmonic torque and speed ripple are derived using the principle of superposition, which can be referred as the foundation when analyzing effects of harmonics and power frequency on torque and speed ripple amplitudes of high speed motorized spindles.Therefore, those harmonics that need to be curbed as they have significant influences on dynamic characteristics can be clearly identified.Harmonic interferences of high speed motorized spindles with different rotating speeds are tested on a dynamic performance testing platform of high speed motorized spindles.The experimental results show that when the speed decreases, both harmonics impacts and ripple amplitudes of torque and speed increase, and the modes of harmonics that need to be curbed grow correspondingly, exerting great influence on spindle dynamic behaviors and making it is impossible that spindles are operated at low speed, thus limiting the scope of spindles” speed.

关键词： High Speed Motorized Spindles Harmonic Current Equivalent Circuit Torque Pulsating Dynamic Performance

作者: CHEN Xiao”an KANG Huimin CHEN Wenqu ZHOU Minghong

作者单位: State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing 400044,China

会议类型: 国内会议

会议名称: 国家自然科学基金委员会高性能机床主轴中的关键科学问题”十二五“规划研讨会

会议地点: 长沙

会议语种:英文

页码: 1-6

在线出版日期: 2010-07-17（万方平台首次上网日期，不代表论文的发表时间）