悬臂式挠性薄片气体动压径向轴承分析研究  

AN ANALYSIS OF A GAS LUBRICATED COMPLIANT MULTILEAF JOURNAL BEARING

作　　者：陈元先 杨燕生 

机构地区：中国航空附件研究所

出　　处：《航空动力学报》1999年第2期183-186,共4页Journal of Aerospace Power

摘　　要：本文建立了悬臂式挠性薄片气体动压径向轴承的特性分析计算方法，用差分方法耦合求解径向轴承的雷诺方程和薄片弹性变形方程。给出了径向轴承刚度、阻尼的计算方法和稳定性计算方法。计算分析了设计的悬臂式薄片气体动压径向轴承的静特性和动特性。计算结果表明，对于所有的偏心率范围和可能的工作运行范围内是恒定稳定的。A performance analysis model of the gas lubricated compliant multileaf journal bearing of the high-speed rotor for air cycle machine of aircraft environmental control system has been established.In the analysis,the differential method is used to solve the compressible Reynolds equation,which governs the airflow in the journal bearing.The solution is coupled with the load deflection equations of the leaves to obtain such information as minimum film thickness, the stiffness coefficients,and the equivalent damping coefficients.The graphical solutions are provided for a range of relevant geometric and operational parameters.The journal bearing has good stability in all range of eccentricity ratios and all possible operating speeds.

关 键 词：气体轴承 挠性薄片 动压径向轴承 航空涡轮 

分 类 号：V229.2[航空宇航科学与技术—飞行器设计] TH133.35