Change search
ReferencesLink to record
Permanent link

Direct link
A magnetic and mechanical evaluation of a force outlet design in magnetostrictive actuators
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
1998 (English)Conference paper (Refereed)
Abstract [en]

A crucial problem in the design of magnetostrictive actuators is to obtain the combined function of its force outlet regarding its mechanical power transmission and achieving a uniform magnetization of the active material. In this paper, a suggested solution to this problem is evaluated by means of mechanical and magnetic finite element calculations. The principle design comprises a magnetic pole consisting of two laminated soft magnetic pieces, with the laminates in each piece perpendicular to each other. Moreover, one of the pieces is wedge-like in order to create a feasible “bend-over” of the magnetic field lines into the active material and to create a stiff force outlet similar to a solid one. Some realizations of the concept are also discussed

Place, publisher, year, edition, pages
1998. 385-8 p.
Keyword [en]
eddy current losses;finite element analysis;force control;intelligent actuators;laminates;magnetic flux;magnetic multilayers;magnetostrictive devices;
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-72343OAI: diva2:487509
magnetostrictive actuators;force outlet design;mechanical evaluation;magnetic evaluation;mechanical power transmission;uniform magnetization;active material;finite element calculations;magnetic pole;laminated soft magnetic pieces;wedge-like pieces;bend-over magnetic field lines;stiff force outlet;giant magnetostrictive alloy;parallel permeability;magnetic flux density;eddy current losses;Terfenol-D; NR 20140805Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2012-01-31Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Engdahl, Göran
By organisation
Electromagnetic Engineering
Other Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 10 hits
ReferencesLink to record
Permanent link

Direct link