Dynamic Design of a High-Speed Motorized Spindle-Bearing System
- 作者：Shuyun JiangShufei Zheng
- 会议时间：2010-07-17
- 关键词：motorized spindle ; rotor dynamic ; transfer matrix method ; rolling bearing analysis theory
- 作者单位：School of Mechanical Engineering,Southeast University,Nanjing 211189,China
- 母体文献：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“规划研讨会论文集
- 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
- 主办单位：国家自然科学基金委员会
- 语种：chi
摘要
This technical brief presents a dynamic model based on the traditional transfer matrix method (TMM) and Jones-Harris nonlinear rolling bearing model to study the effects of the extended structure parameters on the vibration behavior of a high-speed motorized spindle-bearing system.The first critical speed and the dynamic stiffness of the high-speed motorized spindle-bearing system are systematically studied.A design sensitivity analysis of the structure parameters is then conducted to identify the main factor to affect the first critical speed of the spindle-bearing system.The results show that the processing condition, the shaft shoulder, the dimension of motor, and the bearing arrangement are sensitive to the spindle dynamic behavior.The TMM model of the spindle-bearing system is verified by measuring the high-speed motorized spindle overall dynamic stiffness.