Abstract

This paper is devoted to study of increasing the wear resistance of a radial plain bearing. The operation of a bearing is considered in the hydrodynamic mode by means of application of an antifriction polymer composite coating with an axial groove and the micropolar properties on a nonstandard bearing surface adapted to the friction conditions of a bearing bush. The effect of pressure and temperature in the turbulent friction mode on the rheological properties of the lubricant is taken into account. Based on the equation for the micropolar fluid flow in a “thin layer” as well as on the dependence of the micropolar lubricant on the pressure and temperature and on the continuity equation, a self-similar solution has been found taking into account the axial groove on the surface of a bearing bush and without taking into account the axial groove. As a result, the velocity and pressure fields in the axial groove and on the surface of a polymer antifriction composite coating have been determined as has the load capacity and friction force, which make it possible to increase the load capacity, reduce the friction coefficient (increase wear resistance), and also increase the duration of the hydrodynamic mode. The results of numerical analysis of theoretical models and experimental evaluation of the suggested design are presented to verify and confirm the efficiency of the models obtained.

中文翻译：

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非标准基面带轴向槽聚合物涂层径向轴承耐磨性研究

摘要

本文致力于研究提高径向滑动轴承的耐磨性。通过在适应轴瓦摩擦条件的非标准轴承表面上应用带有轴向凹槽的减摩聚合物复合涂层和微极性特性，以流体动力模式考虑轴承的运行。考虑了湍流摩擦模式下的压力和温度对润滑剂流变性能的影响。基于“薄层”中微极性流体流动方程以及微极性润滑剂对压力和温度的依赖性以及连续性方程，找到了考虑轴向凹槽的自相似解在轴承衬套的表面上并且不考虑轴向凹槽。由此确定了轴向凹槽内和聚合物减摩复合涂层表面的速度场和压力场以及承载能力和摩擦力，从而可以提高承载能力，降低摩擦系数（增加耐磨性），并且还增加流体动力模式的持续时间。提出了理论模型的数值分析和建议设计的实验评估的结果，以验证和确认所获得模型的效率。并且还增加了水动力模式的持续时间。提出了理论模型的数值分析和建议设计的实验评估的结果，以验证和确认所获得模型的效率。并且还增加了水动力模式的持续时间。提出了理论模型的数值分析和建议设计的实验评估的结果，以验证和确认所获得模型的效率。