A Novel Magnetostrictive Drive Rotary Motor

Abstract:

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Piezoelectric motors have been successfully developed for various applications like autofocus drives in camera lenses and manufacturing equipment for semiconductor production. Their high speed and accurate positioning capability, combined with a moderate holding torque, make piezo motors also very attractive for actuation purposes in spacecraft mechanisms. However, these motors require high driving voltage and have only a small driving torque. In this paper, the authors have developed a novel magnetostrictive rotary motor using Terfenol-D (Tb0.3Dy0.7Fe1.9) material as the driving elements. The small movement of the magnetostrictive actuator is scaled to 3 times by using flexible flexure hinges, a special designed mechanism is used to combine 3 such actuators to form a pure rotation movement and this movement is used to drive the rotor of the motor. Prototype of this research is made and a commonly 3-phase alternating current is used to drive the motor. Experiments are also carried on in the lab of School of Mechanical and Electrical Engineering of Hangzhou Dianzi University.

Info:

Periodical:

Solid State Phenomena (Volumes 121-123)

Edited by:

Chunli BAI, Sishen XIE, Xing ZHU

Pages:

1203-1206

DOI:

10.4028/www.scientific.net/SSP.121-123.1203

Citation:

J. J. Zhou et al., "A Novel Magnetostrictive Drive Rotary Motor", Solid State Phenomena, Vols. 121-123, pp. 1203-1206, 2007

Online since:

March 2007

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Price:

$35.00

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