稳态均匀温度场中圆柱轴热变形研究

传统公式计算轴类零件直径热变形量时仅考虑温度、材料以及直径几个因素，忽略了轴类零件的长度对轴直径热变形的影响，利用材料线膨胀系数与体积膨胀系数之间的关系，推导了轴类零件在稳态均匀温度场中受热变形的数学模型。实验结果证实推导的数学模型相对于传统计算公式更加合理。

Study on Thermal Deformation of Cylindrical Piece in Steady Temperature Field

In conventional theories and calculations of thermal deformation of cylindrical pieces in steady temperature field, thermal expansion coefficients, body form parameters and temperature are considered. They are approximate and linear, can only be applied in normal or low precision field. An equation for calculating thermal deformation of cylindrical pieces in steady temperature field was deduced based on the linear relation between linear expansion coefficients and bulk expansion coefficients. Results of the theoretical and experimental studies were presented, the experimental results also made it clear that the equation is more logical than the traditional method.