Title :
Analytical Approach for Mechanical Resonance Frequencies of High-Speed Machines
Author :
Boisson, Julien ; Louf, F. ; Ojeda, Javier ; Mininger, Xavier ; Gabsi, Mohamed
Author_Institution :
Lab. Syst. et Applic. des Technol. de l´Inf. et de l´Energie, Ecole Normale Super. de Cachan, Cachan, France
Abstract :
This paper presents an analytical approach for the determination of the mechanical eigenfrequencies of an electrical machine stator. This model is based on the calculation and the minimization of Rayleigh´s quotient. It uses an energetic approach from beam theory applied to stators with a Timoshenko kinematic model. This model is very specially adapted for stators with a thick yoke as the high-speed machines. This approach is validated by finite-element simulations and experimental measurements.
Keywords :
finite element analysis; matrix algebra; stators; vibrations; Rayleigh quotient calculation; Rayleigh quotient minimization; Timoshenko kinematic model; analytical approach; beam theory; electrical machine stator; energetic approach; experimental measurements; finite-element simulations; high-speed machines; mechanical eigenfrequencies; mechanical resonance frequencies; Analytical model; Rayleigh method; Timoshenko; eigenfrequency; experimentation; finite-element (FE) simulation; high-speed machine;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2013.2272282
