Fast vibro-acoustic models

Description

This feature of Manatee allows to perform quick calculations of acoustic noise and vibrations during basic design phase of electrical machines without using 3D FEA mechanical models.
An equivalent cylindrical shell in free-free conditions is automatically defined to model radial flux machine structural dynamics, providing an estimation of natural frequencies and resulting sound power level. These models have been favourably compared to full numerical models for “high” number of stator slots.

To discuss the application limits of such models to your specific topology, you can contact EOMYS e-NVH support team provided with Manatee software license.

Application

These fast vibroacoustic models can be used by electrical engineers when comparing the vibroacoustic behaviour of a large number of electric motor topologies (typically slot/pole combinations) during early electromagnetic design iterations.

Demonstration