Title
Magnetostrictive deformation of a transformer : a comparison between calculation and measurement Magnetostrictive deformation of a transformer : a comparison between calculation and measurement
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Amsterdam ,
Subject
Physics
Source (journal)
International journal of applied electromagnetics and mechanics. - Amsterdam
Volume/pages
44(2014) :3-4 , p. 295-299
ISSN
1383-5416
1383-5416
ISI
000335004700008
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Magnetostriction, which refers to the deformation of the core material of transformers and electrical machines, is a main contributor to the total noise. In this work, a technique is proposed to calculate the magnetostrictive deformations of the core of the aforementioned devices. This technique is based on finite element approach with an artificial neural network model of the magnetostrictive behaviour of the core material. The strain measurements are carried out by using a dual heterodyne laser interferometer setup. The proposed technique is then applied to a single-phase test transformer core. As a validation, the vibration of the magnetised core of the same setup is measured by using a laser scanning vibrometer.
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