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Mayur Deshmukh

Meshing exterior acoustic cavity for a motor assembly

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Hi sir, 

Last time I performed acoustic analysis on stator. This time I need to do the same procedure for motor assembly. While I try to mesh the region between motor and 2D sphere using 3D tetra elements , my mesh is failing.

 

Please suggest how will I be able to mesh it. 

1517984684789965206720.jpg

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On 2/7/2018 at 7:35 AM, Mayur Deshmukh said:

Hi sir, 

Last time I performed acoustic analysis on stator. This time I need to do the same procedure for motor assembly. While I try to mesh the region between motor and 2D sphere using 3D tetra elements , my mesh is failing.

 

Please suggest how will I be able to mesh it. 

 

 

If you're looking for "One-click-meshing-method" for your model, I would like to say "Good luck" to you :)

For a good mesh in this case, alot of work is needed.

 

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Hello,

 

Please go to "Mesh>>Create>>Acoustic Cavity Mesh". 

There select outer sphere under "Structure" and select the Motor Components under "seats". Keep the "create hole elements" option on or off depending on your requirements and then click preview and then click "mesh" in "Acousticcavity browser".

 

 Please find a tutorial on this in the attached pdf. It is the last tutorial.

 

Engineering Solution PDF

 

Thankyou

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Hello,

 

I had a talk with some experts.

So to do this you need to have 2D elements everywhere (motor components and the outer sphere).

 

Then all the motor components should be under one component, there should be no gap or intersection between them and also there should not be any contact surfaces in them.

 

This means that all the motor parts should be treated as one component only in HM. It should be 2D meshed. Then there should be no gap, intersection or contact surfaces between the parts.

 

Thankyou.

Rahul R likes this

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