回転角速度が変動する扁平軸の不安定振動 : 第3報, 自在継手を介して駆動される回転体の傾き振動におけるジャイロ効果の影響

概要

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A rotating speed of a shaft driven through a universal joint fluctuates periodically with even multiple of an angular velocity of the drive shaft. This paper deals with instability for inclinational vibrations of an asymmetrical shaft driven through a universal joint. For this rotor-shaft system, an unstable vibration caused by a shaft asymmetry occurs at an angular velocity near the major critical speed. As effects of the gyroscopic action become stronger, an angular velocity where this unstable vibration occurs increases. Furthermore, the other unstable vibrations caused by coexistence of a shaft asymmetry and an angular velocity fluctuation occur near half of the major critical speed. The number, the position and width of instability regions near half the major critical speed change remarkably with the effect of gyroscopic action.
一般社団法人日本機械学会の論文
1991-08-25