摘要
分析了电主轴的各种热源及其发热量,建立了基于热-结构耦合的电主轴有限元分析模型,计算出电主轴复杂的热边界各种状况下的对流换热系数,利用有限元分析软件ANSYS对电主轴的温度场及其主轴的热变形进行仿真分析并进行实验验证。针对设计实例,提出了改善电主轴热态特性的措施,对改进后的电主轴进行有限元分析表明改进措施具有良好效果。
Heat sources and their quantity of heat in a motorized spindle are analyzed. Thermo-mechanical coupling model for FEA of the motorized spindle is developed. Complicated boundary conditions for the FEA of the spindle system are described carefully. The heat transfer coefficient of every boundary condition is calculated. The temperature field and thermal deformation of the spindle system are simulated by FEA software ANSYS. Two reformative methods are presented to improve the thermal properties of motorized spindle. Experiment is performed to verify the correction of the FEM model. The simulation on the modified spindle system indicates the reformative methods are effective.
出处
《机械设计与制造》
北大核心
2008年第9期96-98,共3页
Machinery Design & Manufacture
基金
广东省自然科学基金项目(04300208)
国家科技部"十.五"重点攻关项目(2001BA203B15)
关键词
高速电主轴
热-结构耦合分析
温度场
热变形
High speed motorized spindle
Thermo-mechanical coupling analysis
Temperature field
Thermal deformation.
