Analysis of the Thermal Characteristics of Machine Tool Feed System Based on Finite Element Method

2017 International Conference on Advanced Technologies in Design, Mechanical and Aeronautical Engineering

工业技术;机械制造;航空航天工程

Mao, Xiaobo^1 ; Mao, Kuanmin^1 ; Du, Yikang^1 ; Wang, Fengyun^1 ; Yan, Bo^1

School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan

430074, China^1

关键词: Convective heat transfer Coefficient;    Feed systems;    Heat sources;    Real situation;    Simulation calculation;    Simulation time;    Thermal characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/234/1/012013/pdf
DOI  :  10.1088/1757-899X/234/1/012013

来源: IOP

【 摘 要 】

The loading of mobile heat source and boundary conditions setting are difficult problems in the analysis of thermal characteristics of machine tools. Taking the machine tool feed system as an example, a novel method for loading of mobile heat source was proposed by establishing a function which was constructed by the heat source and time. The convective heat transfer coefficient is the key parameter of boundary conditions, and it varies with the temperature. In this paper, a model of "variable convection heat transfer coefficient" was proposed, and the setting of boundary conditions of thermal analysis was closer to the real situation. Finally, comparing results of above method and experimental data, the accuracy and validity of this method was proved, meanwhile, the simulation calculation and simulation time was reducing greatly.