An improved model of motorized spindle for transient thermo-structural analysis
The prediction of the temperature distribution and thermal deformation for motorized spindle dependent on time is critical in its design process.The thermo-structural model of a grinding motorized spindle is developed with accurate thermal boundary conditions of the spindle-bearing system based on experimental data and numerical calculation.The following thermal boundary conditions are improved: the heat transfer coefficient of natural convection between spindle surface and ambient air through heat flux measurement,the heat transfer coefficient of forced convection of cooling water by the simulation analysis.In addition,a method of heat distribution applied to the bearing model is proposed.The thermo-structural model with structural deformation constraints is validated experimentally based on the transient temperature of typical regions,the axial thermal deformation of the shaft and the thermal equilibrium time.
Motorized spindle Thermo-structural analysis Transient heat transfer coefficient
Mengxi Wang Jun Hong Wenwu Wu Jianguo Yao
State Key Laboratory for Manufacturing Systems Engineering Xian Jiaotong University Xian, 710054, China
国际会议
2013 International Symposium on Assembly and Manufacturing(2013装配与制造国际专题会议)
西安
英文
91-96
2013-07-01（万方平台首次上网日期，不代表论文的发表时间）