论文部分内容阅读
建立了非牛顿流体热弹流润滑数学模型，对重载条件下的磨合过程进行数值分析．在考虑具有粘塑性本构的非牛顿流体时，采用了等效粘度法对建立的方程进行了解算．结果表明：热解的摩擦系数明显低于等温解的摩擦系数．当进一步考虑流体的非牛顿效应时，不仅温升的结果更为符合实际，摩擦系数也更接近试验结果
A mathematical model of thermo-elastohydrodynamic lubrication of non-Newtonian fluid was established and the numerical analysis of the run-in process under heavy load was carried out. In considering non-Newtonian fluid with viscoplastic constitutive, the equivalent viscosity method is used to solve the established equation. The results show that the friction coefficient of pyrolysis is obviously lower than the friction coefficient of isothermal solution. When we further consider the non-Newtonian fluid effect, not only the temperature rise is more realistic, the friction coefficient is also closer to the experimental results