NUM_002

Objective

Validation objective
Topology SPMSM
Model Types Semi-analytical electromagnetic model EM2.SPMSM
Analytical structural model SM1
Analytical acoustic model AC1
Quantities Maximum and nominal sound power level (SWL)
Geometry NA
Winding NA

The objective of this validation case is to check the sensitivity of vibroacoustic results to the rotational direction and the relative rotor to stator position at time t=0. The acoustic noise should not depend on these parameters, and any variation represents numerical errors.

Machine

Manatee model for machine SPMSM_001
Manatee model for machine SPMSM_001
Manatee Model of the machine in the article : Z. Q. Zhu, L. J. Wu, and Z. P. Xia, [“An Accurate Subdomain Model for Magnetic Field Computation in Slotted Surface-Mounted Permanent-Magnet Machines” IEEE Trans. Magn., vol. 46, no. 4, pp. 1100–1115, 2010.

Results

Sensitivity of MANATEE vibroacoustic model to the rotational direction and the relative rotor to stator position
Sensitivity of MANATEE vibroacoustic model to the rotational direction and the relative rotor to stator position

The simulations with different rotor positions and rotation directions show that the numerical error is less than 0.2 dB.

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