铁磁性流体润滑滑动轴承性能的计算和分析

The Performance Calculation and Analysis for the Ferrofluid Journal Bearing

计算和分析了考虑轴向磁彻体力时的铁磁性流体润滑滑动轴承的静动特性，探讨了铁磁性流体自密封润滑滑动轴承的可行性．

Based on an actual magnetic model,the performance calculation and analysis for the fer-rofluid journal bearing are made with the axial magnetic volume force taken into account. Itis shown that the performance of the bearing,especially for the small eccentricity and smalldiameter-to-width ratio,is greatl influenced by the applied axial magnetic volume force.With an increasing magnetic field,for one thing,the load capacity of the bearing becomesgreater and the leakage flow becomes smaller and is possibly avoided,which shows the actu-al evidence of the composite journal bearing sealed and lubricated with ferrofluid;for anoth-er,the stability of the bearing goes worse.