Impact of Damping material on Vibration Isolation in Switched Reluctance Machine

Switched reluctance machine (SRM) produces high noise and vibration due to its inherent torque production mechanism. This paper presents a new damping method for the SRM to improve the vibrational performance of the machine by using a damping material. Back iron of the stator pole is modified to place the damping material between the stator and the housing. Using the damping material on the outer surface at each stator pole absorbs the vibration and reduces the radial acceleration. Significant improvement is observed in the wide speed range regarding the reduction of the radial acceleration compared to the conventional SRM design. Multiphysics analysis is performed, and the simulation results are provided to show the effectiveness of the proposed method. Experimental results of the conventional design are presented to validate the simulation results.