Videos > Electric Motor Noise using ANSYS Part4
Oct 14, 2020

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Electric Motor Noise using ANSYS Part 4

Hi everybody, this is going to be a short supplemental video adding on to the three-part video series I previously made showing you how to simulate electric motor noise using ANSYS. At the end of those videos, we ended up with a waterfall diagram showing the amplitude of the noise generated by your motor as a function of the motor speed and frequency.

In this video, I'm going to show you how to take that waterfall diagram, bring it into a different ANSYS product called VR Experience Sound, and then actually play the sound so that you can physically hear what the motor is going to sound like at different speeds.

Steps to Export and Play Motor Sound

  1. Export the Waterfall Diagram:
    • Right-click on the waterfall diagram in ANSYS Mechanical.
    • Select Export and then choose Export to VR Experience Sound Pro.
    • This will save it as an export.montane data item.
  2. Open in VR Experience Sound:
    • Open VR Experience Sound.
    • Go to the XML waterfall file that you just created.
  3. Generate the Sound:
    • Set the duration of the sound (e.g., 5 seconds).
    • Enter the starting and ending RPMs of your motor speed.
    • Click Generate. This takes a couple of seconds.
  4. Play and Analyze the Sound:
    • Listen to what the motor is going to sound like.
    • Within VR Experience Sound, perform analyses such as calculating the spectrum.
    • View the sound in decibels over the frequency to locate high-frequency, high-amplitude sounds.

About Ozen Engineering

This video was brought to you by Ozen Engineering. We use simulation to solve multidisciplinary engineering problems, including FEA, CFD, and electromagnetics. If you'd like to learn more, you can:

[This was auto-generated. There may be mispellings.]

Hi everyone, this is going to be a short supplemental video adding on to the three-part video series I previously made showing you how to simulate electric motor noise using ANSYS.

At the end of those videos, we ended up with a waterfall diagram showing the amplitude of the noise generated by your motor as a function of the motor speed and frequency.

In this video, I'm going to show you how to take that waterfall diagram, bring it into a different ANSYS product called VR Experience Sound, and then actually play the sound so that you can physically hear what the motor is going to sound like at different speeds.

Okay, so here we are back in Mechanical. This is the waterfall diagram that we generated at the end of the last video.

To listen to this, all we need to do is right-click on the waterfall diagram, go to export, and then select "Export to VR Experience Sound Pro." This will save it as an .export.montage data item. You can save the data from the main income table that you have already saved.

Next, open up VR Experience Sound, go to that XML waterfall file that you just created, and then make a few settings. The first is the duration of the sound; we'll make it five seconds.

Enter in the starting and ending RPMs of your motor speed, and then hit "Generate." This takes a couple of seconds to make, and then we have generated our sound. We can play and listen to what this is going to sound like.

In addition, within VR Experience Sound, you can do all sorts of analysis on this sound. For example, if we just right-click and select "Calculate Spectrum," we can look at the sound in decibels, the amplitude of the sound in decibels over the frequency of the sound being generated.

This allows us to locate our high-frequency, highest amplitude frequency sounds. This video was brought to you by Ozen Engineering. We use simulation to solve multidisciplinary engineering problems, including FEA, CFD, and electromagnetics.

If you'd like to learn more, you can email us at [info@ozeninc.com](mailto:info@ozeninc.com), call our office, or visit our website at [www.ozening.com](http://www.ozening.com). Title: Electric Motor Noise using ANSYS Part 4

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