Using Symmetry in DesignModeler and Expanding the Results

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  • Last Post 14 June 2018
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peteroznewman posted this 29 October 2017

If we want to have a half model of this…

 

In DM, click Tools, Symmetry then select the Plane. Usually the geometry is a Full Model.

 

(Sometimes only one side of the part has been created before a mirror feature completes the part. In this case, then the Model Type is Partial Model.)

 

 Generate and this is the result.

 

If you want the other half, you have to create a plane where the Z axis points to the half you want to keep. In this case I created Plane4.

 

In Mechanical, build a model and get a solution.

 

In Workbench, Tools, Options, Appearance, turn on Beta Options (one time configuration).

In Mechanical, click on the Symmetry item to get the details window.

 

Set Num Repeat to 2 and Method to Half and put 1e-3 into Z.

 

Click on the Total Deformation and you will have the symmetry expanded.

 

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peteroznewman posted this 06 November 2017

Here is a fluid flow example: A quarter symmetry model.

Here is the results expanded across the two planes of symmetry.

Attached Files

Adisa posted this 13 June 2018

Peter,

Thank you. I do symmetry of a beam, but in results do not show the other side of  beam. And value of displacement is of half beam, i need to divide a displacement with 2 for getting a displacement of whole beam.

 

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peteroznewman posted this 13 June 2018

Adisa,

You have to check Beta Options in the Workbench Options.

Then you get it to work.

When you do a half symmetry for a beam, you put half the load on the beam to get the same end deflection that you would get on a full beam if you applied the full load.

Adisa posted this 14 June 2018

Peter,

I already included the Beta Options, but I thought that the results will be of whole part.

OK, thank you.

peteroznewman posted this 14 June 2018

Adisa,

Yes, the results will be the whole part. When I opened your file, there was only 2 elements through the width of the part in the symmetry direction, then I turned on Beta options and now in the results I see 4 elements through the width of the part.

Cheers,
Peter

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