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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Kumamoto, S. Hosoda, K. Takemura, K. |
| Copyright Year | 2014 |
| Description | Author affiliation: Dept. of Mech. Eng., Keio Univ., Yokohama, Japan (Takemura, K.) || Sch. of Sci. for Open & Environ. Syst., Keio Univ., Yokohama, Japan (Kumamoto, S.; Hosoda, K.) |
| Abstract | 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. |
| Starting Page | 2129 |
| Ending Page | 2132 |
| File Size | 298416 |
| Page Count | 4 |
| File Format | |
| e-ISBN | 9781479970490 |
| DOI | 10.1109/ULTSYM.2014.0530 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-09-03 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Acoustics Rotors Vibrations Force Friction Harmonic analysis Ceramics Efficiency Ultrasonic Motor Superimposing harmonic vibration |
| Content Type | Text |
| Resource Type | Article |
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