Media

This section presents our various media publications (e.g. technical animations, sound samples) related to electromagnetic noise and vibrations in electrical systems.

For technical papers on e-NVH by EOMYS, see our publication page. For videos on e-NVH by EOMYS, see our YouTube page.

Noise of a drone propeller motors

Summary of e-NVH sound sample Application Drone (Marvin® quadcopter) Electrical machine BLDC outrunner (12 stator slots and 7 pole pairs) Supply condition Run-up at no-load

January 26, 2018

Noise of a PWM-supplied traction machine during braking

Summary of e-NVH sound sample Application Subway Electrical machine DC Motor Supply condition Run-down under PWM Noise sources Electromagnetic, aerodynamic, mechanical See also Measurement

January 26, 2018

Noise of a traction synchronous motor at full load

Summary of e-NVH sound sample Application Subway Electrical machine Outer rotor Surface Permanent Magnet Synchronous Machine (SPMSM) Supply condition Run-up at max torque under non

December 12, 2017

Noise of a traction induction motor under sinusoidal supply at no load

Summary of e-NVH sound sample Application Railway Electrical machine Squirrel cage induction motor (SCIM) Supply condition Run up under sinusoidal current at no load Noise

December 12, 2017

Experiments on electromagnetically-excited noise and vibrations

The three following videos were made to illustrate EOMYS technical trainings on noise and vibrations in electric motors, especially used in automotive applications (EV HEV

April 6, 2017