Title :
Magnetostrictive excitation of vibration in machines-a modal approach
Author :
Garvey, S.D. ; Glew, C.N.
Author_Institution :
Aston Univ., Birmingham, UK
Abstract :
The current state of wisdom in predicting electromagnetically-induced stator vibration and noise considers oscillatory radial forces acting in the airgap at the tips of stator teeth. The same oscillations in magnetic flux density which cause these forces also cause internal stresses in the magnetic iron and there is not a consensus as to the relative importance of these. This paper presents a method by which the importance of magnetostriction as a vibration-induction mechanism can be quantified
Keywords :
electric machines; EM induced vibration; airgap; dynamic magnetostriction; electromagnetically-induced stator noise; electromagnetically-induced stator vibration; internal stresses; magnetic flux density; magnetic iron; magnetostriction; magnetostrictive vibration excitation; oscillations; oscillatory radial forces; static magnetostriction; stator flux distribution; stator teeth tips; vibration-induction mechanism;
Conference_Titel :
Electrical Machines and Drives, 1999. Ninth International Conference on (Conf. Publ. No. 468)
Conference_Location :
Canterbury
Print_ISBN :
0-85296-720-9
DOI :
10.1049/cp:19991012
