DocumentCode
1531119
Title
Ball bearing motors
Author
Moyssides, P.G. ; Hatzikonstantinou, P.
Author_Institution
Dept. of Phys., Nat. Tech. Univ. of Athens, Greece
Volume
33
Issue
6
fYear
1997
fDate
11/1/1997 12:00:00 AM
Firstpage
4566
Lastpage
4569
Abstract
We discuss and clarify a number of very serious mistakes and misunderstandings concerning the mechanism of the ball bearing motor. Specifically we show that Gruenberg´s mechanism, which is equivalent to the phenomenological model of Watson, Williams, and Crimp (1993), does not explain the ball bearing motor behavior at all, because the predicted total torque T acting on the ball is T=0. In addition, another wrong conclusion obtained by WWC is their interpretation of their experimental results concerning the relation of speed versus current
Keywords
current density; electric motors; machine bearings; machine theory; torque; Gruenberg mechanism; Watson-Williams-Crimp model; ball bearing motors; phenomenological model; speed versus current relation; total torque; Angular velocity; Ball bearings; Current density; Magnetic fields; Mathematical analysis; Mathematical model; Physics; Predictive models; Torque; Voltage;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.649895
Filename
649895
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