232 回転軸系の内部共振現象(和差調波共振と 1/2 次分数調波共振の共振点が近い場合)

概要

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In rotor systems, if the gyroscopic moment is small, the forward natural frequency and the backward natural frequency almost satisfy a condition of 1 : (-1) internal resonance. In such systems, the forward and the backward subharmonic resonances and the combination resonance occur in the vicinity of twice the major critical speed and internal resonance phenomena appear. This study clarifies dynamical characteristic of nonlinear phenomena, including steady-state oscillations, almost periodic motions, bifurcate phenomena, and chaotic vibrations, due to the internal resonance at twice the major critical speed.
2000-09-01