机械科学与技术2017，Vol.36Issue(5)：729-735,7.DOI:10.13433/j.cnki.1003-8728.2017.0512
高速电主轴谐波转矩产生机理及对主轴振动的影响
Formation Mechanism of Harmonic Torque and Effect on Vibration of High-speed Motorized Spindle
摘要
Abstract
The dynamic performance of high speed motorized spindle was governed by both bearing and high frequency harmonic torque.Aiming at extracting their characteristic frequencies for proper control,the calculation formulae for steady and ripple harmonic electromagnetic torque were derived from different electromagnetic force on the basis of Fourier Transform of the waveform of the air gap magnetic field.The conclusion was that the steady harmonic torque only affected the output torque of the spindle when the ripple harmonic torque generated periodical vibration with frequency of integer multiple of six times fundanental frequency.Based on the above-mentioned results,it is easy to extinguish the vibration frequency from the bearing and that from the harmonic torque,as well as their effect on the dynamic performance of the spindle system.In addition,the different control methods can be applied as the system dynamic requirement.Finally,the conclusion has been validated via an experiment on a 170MD15Y20 high speed motorized spindle.关键词
高速电主轴/谐波/电磁力矩/振动Key words
high-speed motorized spindle/harmonic/electromagnetic torque/vibration分类
机械制造引用本文复制引用
康辉民,张朝星,刘艳余,许功元,胡斌梁..高速电主轴谐波转矩产生机理及对主轴振动的影响[J].机械科学与技术,2017,36(5):729-735,7.基金项目
湖南省教育厅基金项目(12B042,15A063)与湖南省自然科学基金项目(2017JJ2090)资助 （12B042,15A063）
