MECHANICAL-ELECTRIC COUPLING DYNAMICAL CHARACTERISTICS OF AN ULTRA-HIGH SPEED GRINDING MOTORIZED SPINDLE SYSTEM

摘要：

　　On the basis of the traditional mechanical model of a grinding wheel rotor and the mechanical-electric coupling model with ideal sinusoidal supply, taking high-frequency converting current of inverter power switches into further consideration, a modified mechanical-electric coupling model is created.The created model consists of an inverter, a motorized spindle, a grinding wheel and grinding loads.Some typical non-stationary processes of the grinding system with two different supplies, including the starting, the speed rising and the break in grinding loads, are compared by making use of the created model.One supply is an ideal sinusoidal voltage source, the other is an inverter.The theoretical analysis of the high-order harmonic is also compared with the experimental result.The material strategy of suppressing high-order harmonic mechanical-electric coupling vibration by optimizing inverter operating parameters is proposed.

关键词： Ultra-high speed grinding Motorized spindle Mechanical-electric coupling Vibration Suppression

作者: LV Lang XIONG Wanli GAO Hang

作者单位: National Engineering Research Center for High Efficiency Grinding,Hunan University,Changsha 410082,C College of Mechanical Engineering,Dalian University of Technology,Dalian 116011,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: 33-39

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）