AC.ANL Acoustic calculations based on internal semi-analytic models

MANATEE software e-NVH Acoustic Models
Sub-module AC.ANL
Function Acoustic calculations based on internal semi-analytic models
Validation AC_SCIM_002
See also AC.NUM1 Acoustic calculations based on third party FEA models


This module of MANATEE software specialized in the e-NVH simulation of electrical machines uses acoustic semi-analytical models to quickly calculate sound pressure fields and resulting acoustic noise levels.


This module analytically calculates the sound power level and sound pressure level radiated by the machine based on microphone average position and room reverberation constant, either using Equivalent Radiated Power (ERP) (unit radiation factor, suitable for SM.NUM1), or semi analytic models (e.g. equivalent cylinder or disk, pulsating sphere) depending on airborne noise radiator dimensions.

Radiation factor
Radiation factor

Graphical post-processing

The complete list of plot commands is available on MANATEE plot commands webpage. The following visualizations are more particularly related to this module:




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