摘要
分析了大间隙环流中弹支单圆盘转子系统的失稳阈 .首次定义了大间隙环流中转子系统界限失稳频率修正量 ΔΩ和大间隙环流综合影响因子Im.结果表明 ,大间隙环流对弹支单圆盘转子系统的失稳阈有较大的影响 ,大间隙环流产生的流体动力质量ma 是导致这种影响的根本原因 .
The instability onset threshold of single disk rotor,supported by hydrodynamic lubrication bearing,immerged in large gap annular flow is studied. The deviation of rotor critical frequency ΔΩ and the influence factor of large gap annular flow I m are defined at the first time. It is shown that a large gap annular flow has great effects on the instability onset threshold of single disk rotor,supported by hydrodynamic lubrication bearing,immerged in large gap annular flow,and the root reason is the fluid dynamic mass producing in this kind of flow field.
出处
《兰州铁道学院学报》
2000年第4期88-90,共3页
Journal of Lanzhou Railway University
基金
国家"九五"攀登计划资助项目 !(PD95 2 190 2 )
甘肃省自然科学基金资助项目! (ZS991-A2 2 -0 0 2 -G)
关键词
大间隙环流
动力润滑轴承
弹支单圆盘转子系统
失稳阈
large gap annular flow
hydrodynamic lubrication bearing
single disk rotor
instability onset threshold
