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Modelling of a TERFENOL-D based electric generators

Gonzalo Arrouo (Institutionen för tillämpad mekanik, Mekaniska system) ; Viktor Berbyuk (Institutionen för tillämpad mekanik, Mekaniska system)
Göteborg : Chalmers University of Technology, 2005. - 144 s.
[Rapport]

A linear model for an electric generator based in TERFENOL-D is developed. In order to do so, a deep study of the magnetostriction and the magnetization processes is carried out first. Secondly, mathematical expressions for the output of the generator are developed, considering two different kinds of excitations, one where the applied stress is expressed in an exponential way, and another one where it is expressed in a periodic way. A Lump Parameters Model, where the material properties are considered as constants, is analyzed. As an improvement, a second model is developed, where the material properties are considered as functions of the mechanical and magnetic solicitation of the magnetostrictive material. A comparison between both models and both inputs is realized.

Nyckelord: Terfenol-D, Stress, Voltage, Young Modulus, Magnetostriction Coefficient, Permeability



Denna post skapades 2006-01-19. Senast ändrad 2015-12-17.
CPL Pubid: 10483

 

Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Mekaniska system (2005-2005)

Ämnesområden

Övrig teknisk mekanik

Chalmers infrastruktur

Ingår i serie

Technical report - Department of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden