CAJ | 학술논문

针对龙门加工中心整机热力学性能分析的需要，综合考虑机床结构特点、内外部热源的影响，使用有限元分析软件ANSYS Workbench对整机进行未加载接触热阻和加载接触热阻两种情况下的稳态热分析。将加载结合面接触热阻的温度场作为载荷，对加工中心进行热变形分析。结果表明结合面接触热阻对整机温度场的分布有较大的影响，为加工中心结构优化及整机综合热误差补偿提供了理论依据。
침대룡문가공중심정궤열역학성능분석적수요，종합고필궤상결구특점、내외부열원적영향，사용유한원분석연건ANSYS Workbench대정궤진행미가재접촉열조화가재접촉열조량충정황하적은태열분석。장가재결합면접촉열조적온도장작위재하，대가공중심진행열변형분석。결과표명결합면접촉열조대정궤온도장적분포유교대적영향，위가공중심결구우화급정궤종합열오차보상제공료이론의거。
According to the need of thermodynamic performance analysis, the whole gantry machining cen-ter was carried out the steady state thermal analysis based on loaded and unloaded thermal contact resistance by the finite element analysis software ANSYS Workbench. This analysis was comprehensively considered of the machine tool structural features, internal and external heat source. The thermal deformation of machi-ning center was analyzed through loading the temperature field of joint surface thermal contact resistance. The results showed that the thermal contact resistance of joint surface has significant effects on temperature field distribution of whole machine,providing a theoretical basis for the structure optimization and the synthe-sis thermal error compensation of gantry machining center.