Comments on “identification of a nonlinear electromagnetic system: An experimental study”

The writers found the subject of the paper by Chang and Tung [1] interesting. Considering some limitations in their experiments such as saturation of the magnetic material, which is mentioned by the authors, they concluded that the attractive magnetic force cannot have the conventional form of Kbeta...

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Bibliographic Details
Published in:Journal of sound and vibration 2006-03, Vol.290 (3), p.1333-1334
Main Authors: Shabani, Rasool, Salarieh, Hassan, Alasty, Aria
Format: Article
Language:English
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Summary:The writers found the subject of the paper by Chang and Tung [1] interesting. Considering some limitations in their experiments such as saturation of the magnetic material, which is mentioned by the authors, they concluded that the attractive magnetic force cannot have the conventional form of Kbeta1(go - y)2, where I is the instantaneous current in the coil. Using the harmonic balance method in their experimental setup they tried to identify a polynomial form for the electromagnetic force. They wrote the general form of equation of motion of the rotor as follows
ISSN:0022-460X
1095-8568
DOI:10.1016/j.jsv.2005.08.030