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An approach to optimization the coil and magnetic circuit of magnetostrictive actuators
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
2006 (English)In: 2nd IC-SCCE, 2006Conference paper, Published paper (Refereed)
Abstract [en]

When designing a magnetostrictive actuator with bias permanent magnets one important problem is the dimensioning of the ingoing parts in order to achieve the required power output while keeping the losses as low as possible i.e. to maximize the electromechanical efficiency. It is also of interest to use the permanent magnets efficiently. This paper presents a technique which includes FE-methods of estimating the fringing fields in the vicinity of magnetostrictive actuators. A reasonable accurately estimation of the fringing field is an important issue when dimensioning the permanent magnets and the magnetic flux path of a magnetostrictive actuator. Furthermore, we desccribe a technique to determine the coil geometry, taking into account the leakage flux in the coil, for minimum resistive losses and sufficient magnetization of the active material.

Place, publisher, year, edition, pages
2006.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-72270OAI: oai:DiVA.org:kth-72270DiVA: diva2:487382
Conference
International Conference from Scientific Computing to Computational Engineering, Athens, Greece, 5-8 July, 2006
Note
QC 20120305Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2012-03-05Bibliographically approved

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CiteExportLink to record
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