変位加振による振動系の昇降運動(機械力学,計測,自動制御)

概要

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Motion of a vibrating system attached to a vertical shaft with a small clearance is examined experimentally. When the shaft is still, the vibrating system climbs down as well-known. However, the vibrating system climbs up in the case that the shaft is vibrated sinusoidally with adequate amplitude and frequency. When the vibrating system climbs up, its motion is entrained to the shaft vibration and the frequency ratio of the vibrating system to the shaft is 1/1 or 1/2. Calculated results based on a simplified model with three degrees of freedom agree well with experimental results not only qualitatively but also quantitatively. The effects of amplitude and frequency of the shaft vibration and the mechanism of the climbing-up motion is also discussed.
一般社団法人日本機械学会の論文
2002-05-25