首页 馆藏资源 舆情信息 标准服务 科研活动 关于我们
现行 SL-08-040
收藏跟踪
购买正版
Hydrodynamic Lubrication of Scroll Compressor Thrust Bearing with Grooves and Circular Pockets 带凹槽和环形腔涡旋压缩机推力轴承的流体动力润滑
这项理论工作集中于改善涡旋压缩机推力轴承的润滑性能。为了实现这一目标,推力面采用了各种表面特征,如凹槽(三角形、圆形和梯形)和圆形凹槽。建立了一个分析模型,用于预测轨道涡旋推力界面处的流体动压分布和油膜厚度。采用控制体积有限差分法求解了包含径向和切向速度分量的等温、时变极坐标雷诺方程。结果表明,与均匀分布的圆形凹槽相比,圆形凹槽的承载能力更大。 基于在各种操作条件下获得的性能结果,工作重点是设计一种最佳的表面凹槽配置,以提供最大的负载支撑和最小的摩擦。单位:SICitation:ASHRAE Transactions,第114卷,pt。2、盐湖城2008
This theoretical work concentrates on improvement in the lubrication performance of the scroll compressor thrust bearing undergoing an orbital motion. In order to achieve the objective, the thrust surface is patterned with various surface features such as grooves (triangular, circular and trapezoidal) and circular pockets. The analytical model was developed to predict the hydrodynamic pressure distribution and film thickness at the thrust interface of an orbiting scroll. An isothermal, time-dependent polar coordinate Reynolds equation containing both radial and tangential velocity components was solved using a control volume finite difference approach. The results indicate that under an orbiting situation circular pockets are capable of carrying a significant amount of load as compared to that of uniformly distributed radial grooves. Based on the performance results obtained for various operating conditions, work was focused on designing an optimum surface pocket configuration that would provide maximum load support and minimum friction.Units: SI
分类信息
关联关系
研制信息
相似标准/计划/法规