Meshing disc sector

Andrea C.
Andrea C. Altair Community Member
edited February 2022 in Community Q&A

I am meshing a disc sector for which I need to have identical mesh on the radial surfaces. How can I project the mesh on one side to the other? It seems I can just project along a vector in rectangular coordinates.  

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Best Answer

  • Ben Buchanan
    Ben Buchanan
    Altair Employee
    edited February 2022 Answer ✓
    Andrea C. said:

    Correct. I need identical meshes on both sides so I can apply paired displacements at nodes. 

    image

    I don't know of a good way to project this.  You may be able to use morph but I think my approach would still be:

    Duplicate elements

    Rotate around center of disk (you probably know the angle from making the section)

    Assign nodes to surface

    Hope this helps.

Answers

  • Ben Buchanan
    Ben Buchanan
    Altair Employee
    edited January 2022

    Would rotating the mesh work?

  • Andrea C.
    Andrea C. Altair Community Member
    edited January 2022
    Ben Buchanan said:

    Would rotating the mesh work?

    No, it won't because there are holes in it.

  • Ben Buchanan
    Ben Buchanan
    Altair Employee
    edited January 2022
    Andrea C. said:

    No, it won't because there are holes in it.

    Can you send a picture?  

  • Ben Buchanan
    Ben Buchanan
    Altair Employee
    edited January 2022
    Andrea C. said:

    No, it won't because there are holes in it.

    Replicate option?

    image

  • Andrea C.
    Andrea C. Altair Community Member
    edited January 2022
    Ben Buchanan said:

    Replicate option?

    image

    The disc has an not symmetric hole in the middle, so I'd like identical mesh on both the side so I can apply symmetry BC.

     

    image 

  • Andrea C.
    Andrea C. Altair Community Member
    edited January 2022
    Andrea C. said:

    The disc has an not symmetric hole in the middle, so I'd like identical mesh on both the side so I can apply symmetry BC.

     

    image 

    Additonal note. I'm still working with version 14.

  • Ben Buchanan
    Ben Buchanan
    Altair Employee
    edited January 2022
    Andrea C. said:

    The disc has an not symmetric hole in the middle, so I'd like identical mesh on both the side so I can apply symmetry BC.

     

    image 

    So you have a 2D mesh on the large side surface and you want it on the other side also to use to create a 3D mesh?  Maybe include the mesh in the picture.

  • Andrea C.
    Andrea C. Altair Community Member
    edited February 2022
    Ben Buchanan said:

    So you have a 2D mesh on the large side surface and you want it on the other side also to use to create a 3D mesh?  Maybe include the mesh in the picture.

    Correct. I need identical meshes on both sides so I can apply paired displacements at nodes. 

    image

  • Ben Buchanan
    Ben Buchanan
    Altair Employee
    edited February 2022 Answer ✓
    Andrea C. said:

    Correct. I need identical meshes on both sides so I can apply paired displacements at nodes. 

    image

    I don't know of a good way to project this.  You may be able to use morph but I think my approach would still be:

    Duplicate elements

    Rotate around center of disk (you probably know the angle from making the section)

    Assign nodes to surface

    Hope this helps.

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