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Author Cheol-Ho Yun ♦ Watson, B. ♦ Friend, J. ♦ Yeo, L.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1986
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Micromotors ♦ Stators ♦ Vibrations ♦ Resonance ♦ Resonant frequency ♦ Couplings ♦ Finite element methods ♦ Performance analysis ♦ Motion analysis ♦ Power generation
Abstract A novel ultrasonic micro linear motor that uses 1st longitudinal and 2nd bending modes, derived from a bartype stator with a rectangular slot cut through the stator length, has been proposed and designed for end-effect devices of microrobotics and bio-medical applications. The slot structure plays an important role in the motor design, and can be used not only to tune the resonance frequency of the two vibration modes but also to reduce the undesirable longitudinal coupling displacement caused by bending vibration at the end of the stator. By using finite element analysis, the optimal slot dimension to improve the driving tip motion was determined, resulting in the improvement of the motor performance. The trial linear motor, with a weight of 1.6 g, gave a maximum driving velocity of 1.12 m/s and a maximum driving force of 3.4 N. A maximum mechanical output power of 1.1 W was obtained at force of 1.63 N and velocity of 0.68 m/s. The output mechanical power per unit weight was 688 W/kg.
Description Author affiliation :: Dept. of Mech. Eng., Monash Univ., Clayton, VIC, Australia
ISSN 08853010
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2010-08-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 57
Issue Number 8
Size (in Bytes) 1.22 MB

Source: IEEE Xplore Digital Library