树脂复合材料整体床身热结构耦合分析

Coupled thermo-structure analysis of integration machine bed made of resin composites

以某企业某种型号数控车床的树脂复合材料床身为研究对象,通过SolidWorks软件建立床身实体模型,把工况下各种工艺参数通过计算得到载荷,然后折算到床身上。运用大型有限元仿真软件ANSYS Workbench对该床身进行静力结构分析、稳态热分析和热结构耦合分析。经过有限元仿真分析,研究了静力结构载荷和热载荷两者同时作用时对床身应力和变形产生的影响。分析结果表明,热载荷对于树脂复合材料床身的影响较小,该材料床身具有良好的热稳定性,有利于减小机床误差,提高加工精度。研究分析为树脂复合材料用于机床床身的综合性能研究提供参考。

The solid model of CNC bed is modeled by SolidWorks, which is made of resin composites in some models of an enter-prise. The loads calculated by the various process parameters in working conditions are converted to bed. The static structural a-nalysis, the steady-state thermal analysis and coupled themio-structure analysis are made by ANSYS Workbench. After the finite element simulation analysis, the impacts on bed stress and deformation generated by both static structural and thermal loads at the same time are studied. Analysis result shows that the heat load have little effect on resin composites bed,whose good thermal sta-bility is beneficial to reduce machine error and improve the machining accuracy. The results provide a reference for the compre-hensive performance research of machine bed made of resin composites.