非対称回転体を持つ軸の危険速度通過時のふれまわり振動

概要

論文の詳細を見る
Concerning the passage problem through a critical speed, it must be taken into account that the acceleration reduces the damping coefficient for a forward whirl whether the rotor is symmetric or not. This phenomenon may be in opposition to the conventional conclusion that the maximum amplitude decreases with the increase in acceleration. The interaction of a driving torque with a change in the amplitude is an occurrence in the second order of the shaft deformation. Thus, equations of motion for the rotating shaft are introduced by operations ensuring the second-order accuracy of the deflection, the angle of deflection, and the torsion. An asymptotic solution is derived from the equations of motion, provides some clues to the physical explanation for the transient behavior of the rotating shaft.
1991-11-25