自在継手により駆動される偏平軸の横振動 : 第3報,重力による水平軸の強制振動の解析と実験

概要

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An asymmetrical shaft driven by a universal joint is set up horizontally and subjected to the action of gravity. In the asymmetrical shaft, forced vibrations are excited by the triple action of gravity, asymmetry, and angular velocity fluctuation. Analyses are developed for a simple vibratory system, consisting of the driven shaft which has no distributed mass and has a concentrated mass at the middle. The simultaneous equations of motion have parametric excitation terms and a sinusoidal force. The solution for the equations of motion is derived approximately by asymptotic expansion form. Also a stationary vibratory solution is derived from the approximate solution. The results of the analyses show that the shaft system makes resonances at the angular velocities near half, or one-fourth, of the major critical speed. The validity of the analytical results is confirmed by experiments.
一般社団法人日本機械学会の論文
1985-12-25