(1.中南大学 机电工程学院，长沙 410083；
2.株洲工学院 机械系， 株洲 412008)
摘 要: 根据快速超薄铸轧机铸轧辊的特点，从热弹性力学的角度建立了热弹耦合方程并对其求解。综合接触压力(轧制力分布)模型，确定了铸轧辊温度场边界条件，得到了超薄铸轧机铸轧辊变形的计算模型。利用此模型计算了某铸轧机铸轧辊的温度场和变形量，计算结果与现场测试数据吻合较好，表明所建模型正确可信。通过对铸轧辊应力分析计算发现在不同半径处应力性质有突变，从而找到了辊芯与辊套滑移、错位的根本原因。
关键字: 铸轧辊；计算模型；应力应变场；热力耦合
（1.中南大学 机电工程学院，长沙 410083；
2.株洲工学院 机械系， 株洲 412008）
Abstract:According to the characteristics of the thin gauge high-speed roll casting roller，based on thermo-elasticity mechanics，the stress-strain field coupling thermal-force was analysed and calculated for the thin-gauge high-speed roll casting roller，and it was found that the stress in different radius changes suddenly, which is one of the basic reason of slide between the roll-cover and roll-core. The result fits well with the testing data. This indicates the model is right and trusty.
Key words: casting roller；computing model；stress-strain field；coupling thermal-force
