振動と回転の運動変換機構 : 第1報, 試作した振動回転子の運動特性

This paper describes experimental and analytical investigation on an asymmetric top with three legs(called "oscillatable-rotor")which shows a preference for rotation in one direction. Motion starting with a given initial zenith angle has been experimentally observed to evaluate the characteristics of the oscillatable-rotor. It has been clarified that the oscillatable-rotor transforms oscillation induced by initial potential energy to counterclockwise rotation. Analytical results based on a rigid body model of the oscillatable-rotor agree well with experimental results not only qualitatively but also quantitatively. The mechanism of motion transformation is also discussed.