Improvement of driving efficiency of ultrasonic motor by improvement of vibration configuration

Shogo Kumamoto, Kyohei Hosoda, Kenjiro Takemura

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

An ultrasonic motor is generally composed of a vibrator and a rotor, and is driven by the frictional force between the vibrator/rotor. Since the contact points on the vibrator draw elliptic trajectory, relative speed of the point against the rotor varies even when the rotor rotates with a constant speed. This may cause abrasion between the vibrator/rotor and decrease in driving efficiency. This research proposes a novel method to reduce the relative speed to improve the driving efficiency of ultrasonic motors by superimposing harmonic vibrations with driving vibration. Results of numerical calculation show that driving efficiency may be improved by 27% by the proposed method.

本文言語English
ホスト出版物のタイトルIEEE International Ultrasonics Symposium, IUS
出版社IEEE Computer Society
ページ2129-2132
ページ数4
ISBN(電子版)9781479970490
DOI
出版ステータスPublished - 2014 10 20
イベント2014 IEEE International Ultrasonics Symposium, IUS 2014 - Chicago, United States
継続期間: 2014 9 32014 9 6

出版物シリーズ

名前IEEE International Ultrasonics Symposium, IUS
ISSN(印刷版)1948-5719
ISSN(電子版)1948-5727

Other

Other2014 IEEE International Ultrasonics Symposium, IUS 2014
CountryUnited States
CityChicago
Period14/9/314/9/6

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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