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Evaluation of a magnetostrictive drive element model
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
1993 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 73, 5851-5853 p.Article in journal (Refereed) Published
Abstract [en]

A voltage #x2010;fed magnetostrictive drive element is modeled. The model involves the Terfenol rod, a magnetizing coil, permanent magnets, a magnetic circuit, and predicts displacements and stresses under different load conditions. In this model the performance of the drive element is calculated using a finite difference method for the active material, Faraday #x2019;s and Ampere #x2019;s laws for the electric circuit, and a finite #x2010;element method for the magnetic circuit comprising permanent magnets. The resulting system of equations is solved using a dynamic simulation program. A comparison between the results of the model and experimental data from a commercial drive element is presented.

Place, publisher, year, edition, pages
1993. Vol. 73, 5851-5853 p.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-72029DOI: 10.1063/1.353548OAI: oai:DiVA.org:kth-72029DiVA: diva2:487162
Note
NR 20140805Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2017-12-08Bibliographically approved

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