基于CFD的水润滑静压推力轴承承载能力分析  

Load Capacity Analysis of Water Lubricated Hydrostatic Thrust Bearing Based on CFD

作　　者：王艳真 蒋丹[1] 尹忠慰[1] 高庚员[1] 张秀丽[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）》2015年第4期428-432,447,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,针对某水润滑静压推力轴承建立了不同的水膜模型,分析水膜厚度与轴承承载能力的关系,以及水腔厚度、进水孔直径、轴承转速对轴承承载能力的影响.结果表明:随水膜厚度的增加,静压推力轴承承载力显著减小;随水腔厚度或进水孔直径的增加,轴承承载力先增大后基本不变;水腔厚度越大,使承载能力最大的进水孔直径越小;随转速增大,轴承端泄增强,且承载能力明显下降.Based on the theory of computational fluid dynamics（CFD）,different water hydrostatic thrust bearing models were established.The influence of the thickness of water film,water cavity thickness,inlet opening diameter,and rotational speed on the load capacity of the hydrostatic thrust bearing were analysed.The results indicate that load capacity significantly decreases with the increase of film thickness;with the increase of the water cavity thickness or inlet opening diameter,load capacity increases,then basically remains unchanged;the water cavity is thicker,the inlet opening diameter is smaller for the maximum load capacity;load capacity decreases as the discharge increases with the increase of rotational speed.

关 键 词：水润滑 静压推力轴承 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]