大间隙环流中Jeffcott转子系统特征值分析

Analysis of Eigenvalues of Jeffcott Rotor in Large Gap Annular Flow

建立了大间隙环流中Jeffcott转子系统运动方程和特征方程,分析了系统参数对特征值的影响.结果表明:大间隙环流特性参数对系统特征值有不同程度的影响,而Jeffcott转子系统参数对系统特征值没有影响.

The motion equations and eigen-equation of Jeffcott rotor immerged in large gap annular flow are derived, and the effects of parameters on eigenvalues in the system are analyzed. Results show that the characteristic parameters of large gap annular flow have many effects on the eigenvalues in various degrees, but those of mono-mass rotor have no such influences.