Abstract: In order to study the effects of hysteresis heat generation on nonlinear viscoelastic behaviors of rubber materials,a pair of squeezing and rolling steel-rubber roller was studied. Firstly, the decoupling method was adopted for the first transient mechanics field analysis, and then the heat generation rates of the nodes were calculated by the losses. Finally, the late heat generation was used as the internal heat sources for thermal analysis to obtain the steady-state temperature field distribution. The results show that the temperature rises of hysteresis of rubber roller are as 6~13 ℃. Along the circumferential direction, the highest temperature appears on both ends. Along the radial direction, the highest temperature appears on the center. The simulation results are consistent with the experimental ones which pro ides the feasibility of the analysis method, and the hysteresis heat generation is the main heat-producing factor in the movement processes.

Key words: rubber roller, hysteresis, heat generation rate, temperature field

摘要： 为了研究橡胶材料非线性黏弹性行为表现出的滞后生热的影响，以一对挤压对滚的钢辊-橡胶辊为研究对象，先采用解耦方法进行瞬态力学场分析，再通过损耗计算得出节点生热率，最后将滞后生热作为内热源进行热分析，得到其稳态温度场分布。结果表明，胶辊产生的滞后温升为6～13 ℃，周向两端的温度最高，径向中部的温度最高。仿真结果与试验结果的良好一致性证明了该方法的可行性，也证明了滞后生热是运动过程中的主要生热因素。

关键词: 橡胶辊, 滞后, 生热率, 温度场