E Motor Acoustic
Check Solution link to learn about features of Solutions. Use SimLab - Learning center videos for more tutorials on Model setup using Solution approach.
E-Motor Acoustic analysis helps investigate the noise generated in the electric motor due to electromagnetic forces.
To study the effect of EM forces on the acoustic behaviour of the electric motor, the
User needs to define the following.
- Create fluid mesh around the structural mesh.
- Create adaptive layer or infinite elements over fluid mesh outer surface.
- Create a sound receiver to check the acoustic results.
- Map electromagnetic forces from the EM results to the structural mesh.
- Perform a modal frequency analysis to get the acoustic results.
E-Motor Acoustic solution automatically creates the fluid material, properties, and
sound receiver to simplify the model step of the acoustic analysis of the electric
motor.
- Fluid material – Based on the speed value entered, Fluid material will be created and assigned to the fluid body.
- Adaptive layer\Infinite property – The property will be applied on the outer faces of the fluid body and will be used to compute the far field sound pressure.
- Sound receiver – Spherical shell surface will be created based on the user-defined radius around the model and used as a sound receiver.
Once the acoustic solution got created use the Force computation tool to map Electromagnetic forces from Electromagnetic results to structural mesh.
Note:
- Sound pressure results by default will be generated for Sound receiver nodes.
- User can compute the sound pressure value at node points of interest, by referring
a node set under displacement option in Result request.
- The nodes in the set should be defined with Fluid property /Acoustic property.
