基于CFD的水润滑斜面推力轴承承载能力分析  

Load Capacity Analysis of Water Lubricated Tapered-Land Thrust Bearing Based on CFD

作　　者：张秀丽[1] 蒋丹[1] 尹忠慰[1] 高庚员[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《东华大学学报（自然科学版）》2013年第4期411-416,共6页Journal of Donghua University(Natural Science)

基　　金：国家自然科学基金资助项目(50875169)

摘　　要：基于计算流体动力学(CFD)理论,建立不同的水膜润滑模型并进行仿真计算,分析最小水膜厚度、瓦块倾斜角度、瓦斜面升高比及转速对某斜面推力轴承的承载能力的影响规律,为水润滑斜面推力轴承的设计提供理论依据.结果表明:最小水膜厚度和转速是影响轴承承载能力的重要因素;当最小水膜厚度和转速一定时,存在最优的瓦块倾斜角度或瓦斜面升高比使轴承承载能力最大,最优瓦斜面升高比为0.656,最优瓦块倾斜角度可以通过最小水膜厚度与最优瓦斜面升高比计算得到.Water film lubrication models have been built and calculated based on the theory of computational fluid dynamics （CFD） to analyze the effects of the minimum thickness of water film, inclined angle of pads, ratio of pad height to the mininum film thickness and angular speed on load capacity of one tapered-land thrust bearing and provide the theoretical basis for design of water lubricated tapered-land thrust bearing. Results show that the minimum thickness of water film and angular speed are important factors that impact load capacity of bearings, and there is an inclined pad angle or ratio of pad height to the mininum film thickness which maximizes the load capacity when the minimum thickness of water film and angular speed are constant. The best ratio of pad height to the mininum film thickness is 0. 656 and the best inclined pad angle can be calculated by the minimum thickness of water film and the best ratio.

关 键 词：水润滑 斜面推力轴承 承载能力 影响参数 

分 类 号：TH133.37[机械工程—机械制造及自动化]