目的 研究往复滑动条件下具有体积温差的两个粗糙界面间的传热特点。方法 基于传热学理论，考虑界面间的接触热导，建立往复滑动粗糙界面间的传热模型。采用ABAQUS有限元软件中的子程序GAPCON，将接触热导定义为滑动速度、接触压强、材料热参数以及表面粗糙度的函数，通过数值仿真研究无量纲振幅 、无量纲频率 以及界面接触热导的度量参数 对无量纲平均热流密度的影响。结果 当 ， 时，随无量纲频率和振幅的增大，无量纲平均热流密度增大；当 时，随无量纲振幅的增大，无量纲平均热流密度呈线性增长趋势。结论 增大无量纲频率或者振幅，均可提高界面间的热流密度。随着无量纲参数 和振幅的不断增大，无量纲平均热流密度逐渐趋于稳定值，此时界面接触热导值对传热起主要作用。

The work aims to study the heat transfer characteristic between two rough surfaces subjected to different bulk temperatures and sliding reciprocating motion. A two-dimensional heat transfer model was established to analyze the dimensionless average heat flux based on heat transfer theory and considering the thermal contact conductance. The ABAQUS finite element package was utilized and a user defined subroutine GAPCON was called to define the effective thermal contact conductance as a function of the surface statistics, surface material properties, and the nominal contact pressure. The dimensionless amplitude , the dimensionless frequency , and the dimensionless parameter were selected as the influence factors to explore the law of heat transfer between the sliding surfaces. The results showed that the dimensionless average heat flux increased with the increase of dimensionless amplitude and frequency under the condition of and ; when , the dimensionless average heat flux presented a linear increase with the increase of the dimensionless amplitude. Higher dimensionless amplitude and frequency have positive effects on the dimensionless average heat flux. The average flux will trend to be stable with and increasing, indicating that the thermal contact conductance becomes dominant.