A Magnetic Constant Torque Mechanism

This paper presents the design of a new type of magnetic constant torque mechanism. The constant torque is shown to be created over a prescribed ±65° stroke length and is shown to be highly uniform. The value of the constant torque is adjustable through the relative axial motion of the rotors. The c...

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Bibliographic Details
Published in2024 International Conference on Electrical Machines (ICEM) pp. 1 - 7
Main Authors Sivka, Gozde, Che, Dawei, Dechant, Bert, Bruce, Colton, Bird, Jonathan Z.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2024
Subjects
Constant torque mechanism
finite element analysis
Force
gravity compensator
Magnetic analysis
Magnetic flux
magnetic isolator
Motors
Prototypes
quasi-zero stiffness
Rotors
Torque
Torque measurement
Wave energy conversion
Winches
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Summary:This paper presents the design of a new type of magnetic constant torque mechanism. The constant torque is shown to be created over a prescribed ±65° stroke length and is shown to be highly uniform. The value of the constant torque is adjustable through the relative axial motion of the rotors. The constant torque is created using a simple magnet arrangement which makes use of the axial transverse-flux path of one rotor's magnetic field relative to the azimuthal field flow of the fixed secondary rotor. It is shown that the use of segmented magnets introduces torque ripple.
ISSN:2473-2087
DOI:10.1109/ICEM60801.2024.10700186