摘要
为研究数控转台传动系统元动作的热误差建模方法,首先介绍了元动作理论以及有限元数值模拟的温度场模型假设及边界条件,并分析了温度场仿真所需的摩擦机理及参数计算方法.采用ANSYS仿真分析从稳态和瞬态两个方面对转动元动作进行数值模拟,并给出其中关键元动作的温升曲线,分析了元动作瞬态、稳态及热-结构耦合温度场和变形场,得到元动作温度分布云图、温升量及热变形量.通过热变形理论计算和热变形有限元分析,得到考虑动作件热变形的传动系统元动作热误差模型.
In order to study the thermal error modeling method of the transmission system meta-action in numerical control turntable.Firstly,the meta-action theory and the temperature field model assumptions and boundary condition of finite element simulation are introduced.Then,the mechanism of the friction temperature field simulation and the parameter calculation method of the ANSYS simulation are analyzed the rotation meta-action is numerically simulated from the two aspects of steady state and transient state,and the temperature rising curve of key meta-action is given.The temperature distribution and temperature rising and thermal deformation are obtained by coupling the temperature field and deformation field of meta-action transient state,steady state and thermal-structure.The thermal error model of the transmission system is obtained by the theoretical calculation and finite element analysis of thermal deformation.
作者
杨欣
樊振刚
张根保
冉琰
YANG Xin;FAN Zhen-gang;ZHANG Gen-bao;RAN Yan(College of Mechanical Engineering,Chongqing University,Chongqing 400044,China;Chengdu Market Supervision and Administration Bureau,Chengdu 610061,China;Southwest China Research Institute of Electronic Equipment,Chengdu 610036,China)
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2024年第1期76-84,119,共10页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金资助项目(52275473,51835001)
国家“高档数控机床与基础制造装备”重大专项资助项目(2019ZX04005-001).
关键词
传动系统
元动作
有限元仿真
热变形
热误差
transmission system
meta-action
finite element simulation
thermal deformation
thermal error
