Vibration behaviour of stators of switched reluctance motors

2D and 3D finite-element techniques are used to investigate the influence o f geometric asymmetries and the leading dimensions of the stator core, name ly the diameter and thickness of the yoke, the width and number of poles, t he lamination notches, and the stator windings on the natural frequencies a nd vibration modes of switched reluctance motors. Predictions are validated against measurements on various experimental models. Both finite-element a nalysis and experimental measurements are used to quantify the influence of the mass and stiffness of the laminated core and the windings on the natur al frequencies and vibration modes, and thereby to obtain the effective mat erial properties.