Frequency-Band Analysis for Acoustic Noise Characterization of an Interior Permanent Magnet Motor

The analysis of acoustic noise characteristics is important for effective noise reduction. This paper presents a computationally efficient approach for acoustic noise analysis of an interior permanent magnet (IPM) motor. A combination of surface velocity results calculated using ANSYS are coupled with AVL EXCITE Acoustics to estimate the air-borne noise produced by the motor. The air-borne noise is calculated using the Wave Based Technique …