Prediction of acoustic noise and vibration of a 24/16 traction switched reluctance machine

Abstract

This study presents a numerical modelling approach for the prediction of vibration and acoustic noise for a 24/16 traction switched reluctance machine (SRM). The numerical modelling includes the simulation of electromagnetic force in JMAG, the calculation of natural frequencies and the simulation of vibration and acoustic noise in ACTRAN. Considerations in the modelling of geometries, meshing and contacts of the 24/16 SRM are discussed to ensure the accuracy of the numerical simulation. Two-dimensional fast Fourier transform (FFT) is applied to the radial nodal force at the stator pole tip to analyse the dominant harmonics. FFT is also applied to the simulated surface displacement of the housing and the sound pressure at 2000 rpm to analyse their dominant frequency components. The dominant harmonics for the vibration and acoustic noise at 2000 rpm are confirmed. The numerical modelling method presented in this study can also be applied to the other SRMs and electric machines to predict the vibration behaviour and the radiated acoustic noise.

Source of Acoustic Noise in a 12/16 External-Rotor Switched Reluctance Motor: Stator Tangential Vibration and Rotor Radial Vibration

“…The element size and radius of the near field meshing were calculated and carefully selected to ensure simulation accuracy. The calculation of the required element size and radius of the near-field meshing is presented in [7], [8].…”

“…The numerical simulation of the vibration modes of the stator and the rotor is conducted in ACTRAN. The details of the numerical modeling are presented in [7]- [8]. Fig.…”

Fuzzy Controller Based DTC of SRM Drive Fed by Common High Side Asymmetric Switch Converter

“…The growing industrialization has led to the application of the SRM in various sectors like aviation, textile factories, robotics and electric vehicles [4][5][6]. However, the SRM encounters reliability and safety issues due to presence of doubly salient and switching power properties that added several demerits of higher torque ripples generation, noise and non-linear magnetic characteristics [7][8][9]. Also, nowadays, more research is going to design new control strategies to enhance the performance of the SRM as traditional techniques lag in terms of accuracy [10][11][12][13][14][15].…”