采用含高阶项的Mooney-Rivlin本构模型对丁腈橡胶O形圈/316L不锈钢配副的往复摩擦生热特性进行有限元分析及试验验证.利用变参数法分析往复频率、摩擦系数、接触压力及环境温度对配副金属温度场的影响.结果表明：所建模型能较准确地分析橡胶/金属摩擦界面的摩擦生热特性.随着往复频率、摩擦系数和接触压力的增大，稳定阶段摩擦界面的温度升高；摩擦界面温升速率与初始环境温度无关；摩擦界面温度的稳定值与往复运动频率呈线性变化关系，与摩擦系数和接触压力呈“抛物线”状递增关系；摩擦过程中靠近摩擦热源的区域等温线较密集，温度梯度较大.
The thermal characteristics of reciprocating friction of the nitrile rubber O-ring against stainless steel surface were successfully simulated by FEA (finite element analysis) and varified by experiments base on the Mooney-Rivlin model with high-order terms. The effects of reciprocating frequency, friction coefficient, contact pressure and ambient temperature on the temperature field of counterpart were investigated by using variable parameter method. Results showed that the FEA model could accurately analyze the characteristics of frictional heat generation at the rubber/metal friction interface. The temperature of the friction interface during the steady phase increased with increase of reciprocating frequency, friction coefficient and contact pressure. The temperature rise rate of the friction interface was independent of the initial ambient temperature. The stable value of the friction interface temperature had a linear relationship with the reciprocating frequency and had a positive parabolic relationship with the friction coefficient and the contact pressure. Zones close to the friction heat source had dense isotherms and great temperature gradient.
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