汇报题目：参加The 2018 CIRP International Conference on High Performance Cutting (HPC 2018) 参会报告
汇报时间：2018年7月2日（星期一）19:30
汇报地点：科技园西五楼南楼301
汇报人：席松涛
会议名称：The 2018 CIRP International Conference on High Performance Cutting
会议时间：25-27 June 2018
会议地点：Budapest, Hungary
会议简介：The 8th CIRP Conference on High Performance Cutting (HPC 2018) will be held in downtown Budapest, Hungary, where scientists, researchers and industrial partners can present their latest results and the cutting edge technology in the field of machining.
The HPC 2018 is sponsored by Budapest University of Technology and Economics
Department of Applied Mechanics and Hungarian Academy of Sciences Institute for Computer Science and Control.
会议交流工作
Oral presentation: Dynamic modeling of machine tool spindle bearing system and model based diagnosis of bearing fault caused by collision
报告人：席松涛
参加论文信息
Title: Dynamic modeling of machine tool spindle bearing system and model based diagnosis of bearing fault caused by collision
Author: Songtao Xi, Hongrui Cao, Xuefeng Chen, Linkai Niu
Abstract: This paper presents a dynamic modeling approach of machine tool spindle bearing system supported by both angular contact ball bearing and floating displacement bearing with the consideration of bearing defect. The dynamic model of angular contact ball bearing and floating displacement bearing are developed by discrete element method based on the geometrical relationship between different bearing components and Hertz contact theory. The spindle shaft is modeled by finite element method with Timoshenko beam theory. With the developed dynamic model, the dynamic response of the machine tool spindle bearing system with or without bearing defect can all be simulated. Base on the developed spindle bearing system dynamic model, the dynamic vibration characteristics of a vertically installed machine tool spindle with multiple defects on inner race are investigated. The proposed model is validated on a machine tool spindle with bearing defects caused by collision in the laboratory.
