中文摘要：

在分析加工中心立柱系统主要热源、热汇和热流通路的基础上，根据热源热生成、热阻与热边界条件的经验公式，基于有限元方法建立了加工中心立柱系统热态特性分析模型对其热态性能进行辨识，获得其温度场和热变形，并利用热成像仪与热态特性分析仪通过实验标定机床的温度分布与热位移，修正热边界条件从而获得精度足够的热态特性分析模型，并通过温度控制策略优化加工中心立柱系统的热态性能提高机床的精度，为后续的误差补偿工作提供支撑。

英文摘要：

Based on main heat sources, heat sinks and heat flow paths of column system for machining center, according to heat generation, heat resistance and the experience formula of thermal boundary conditions, thermal characteristic analysis model was established using FEM to identify its thermal properties, and obtains its temperature field and thermal deformation. The temperature distribution and thermal displacement of machine tool was calibrated using thermal imager and thermal characteristics analyzer. Thermal boundary conditions were corrected to obtain accurate enough thermal characteristic analysis model. The precision of machine tool was improved through thermal performance optimization of column system using the temperature control strategy, and supporting the error compensation step.