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重载工况条件下的点、线接触机械零件如齿轮、滚动轴承和凸轮及其从动件的设计和选用越来越依赖于弹流及部分弹流理论这些现代润滑理论的支持。由于现代机械传动装置日益向着大功率、高速度方向发展,为了提供适用于重载、高温、高速工况下的润滑分析方法,本文对重载工况下线接触部分热弹流问题进行了研究并获得了相应的数值结果,求得了不同工况条件和不同表面形貌条件下的流体动压力和粗糙接触压力分布、名义油膜厚度分布、润滑油和固体表面的温度分布以及摩擦拖曳力,揭示了重载线接触部分热弹流润滑特性。
The design and selection of line contact mechanical parts such as gears, rolling bearings and cams and their followers, under heavy load conditions, increasingly rely on the support of modern lubrication theories such as spring-flow and partial-flow theory. Due to the increasing development of modern mechanical transmission towards high power and high speed, in order to provide the lubrication analysis method suitable for heavy-load, high-temperature and high-speed operating conditions, The corresponding numerical results were obtained and the dynamic pressure and roughness contact pressure distribution, the nominal oil film thickness distribution, the temperature distribution of the lubricating oil and the solid surface and the frictional drag force under different working conditions and different surface topography were obtained. The heavy-load line contact part of the thermal EHL lubrication characteristics.