P2-29 Deformation & Rotation of Standingwave in the Annular Stators of Ultrasonic Motors(Short oral presentation for posters)

概要

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This present work deals with experimental and theoretical analyses of deformation and rotation of Standingwave modes in the annular vibrators of ultrasonic motors. The travellingwave and travellingwaveoid are observed experimentally in the ring stators of ultrasonic motor by single-phase drive. When an annular vibrator has a non-axisymmetrical structure, some problems can exist and exert influences on its vibraional behavior. The degenerate modes of the same form exist no longer, but the same order modes with near natural frequencies instead. The phase difference of time between the responses of modes emerges from different contributions of dampping to the different modes. The travellingwaveoid observed in the vertical direction is not a normal travellingwave but a distortion of Standingwave.
超音波エレクトロニクスの基礎と応用に関するシンポジウム運営委員会の論文
2005-11-16