Title :
Magnetic forces and stresses in ferromagnetic material
Author :
Vandevelde, Lieven ; Ghalamestani, Setareh Gorji
Author_Institution :
Dept. of Electr. Energy, Syst. & Autom., Ghent Univ., Ghent, Belgium
fDate :
March 31 2014-April 1 2014
Abstract :
In this paper, the effect of the stresses in ferromagnetic materials is described based on the Chu model formulation. Such formulation is applied for the identification of the magnetoelastic behaviour of the magnetic materials. It is shown that a compressive stress is present in the ferromagnetic material, even if the stress tensor τ̅c is zero, which, as a result, tries to shorten the magnetic flux path length and shrink the magnetic core. The effect is further illustrated on a single-phase transformer core.
Keywords :
compressive strength; ferromagnetic materials; magnetic cores; magnetic forces; magnetoelastic effects; transformer cores; Chu model formulation; compressive stress; ferromagnetic material; magnetic core; magnetic flux path length; magnetic forces; magnetoelastic behaviour; single-phase transformer core; stress effect; stress tensor;
Conference_Titel :
Computation in Electromagnetics (CEM 2014), 9th IET International Conference on
Conference_Location :
London
Electronic_ISBN :
978-1-84919-817-2
DOI :
10.1049/cp.2014.0182
