How to select CID during CBUSH creation

GE4130
GE4130 Altair Community Member
edited October 2020 in Community Q&A

I don't see how to select an orientation coordinate system while creating a CBUSH element on the springs panel. When using coincident nodes the CBUSH must be oriented by a coordinate system. Can someone tell me the way to set the CBUSH orientation CID from within HyperMesh? My model will only work by editing the input (*fem file) manually.

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Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited September 2016

    Card edit  CBUSH elements and refer the LCS under CID as shown in attached screenshot.

    <?xml version="1.0" encoding="UTF-8"?>CBUSH.JPG

  • GE4130
    GE4130 Altair Community Member
    edited September 2016

    Thank you! Exactly what I was looking for.

  • sunny_20766
    sunny_20766 New Altair Community Member
    edited August 2019

    How to update CBUSH element.

    I want to swap its orientation from N1 to N2.

     

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited August 2019

    The vector orientation method works the same way for CBUSH’s as it does for CBAR/BEAM. For vector orientation:

    • Element x axis will always be the direction defined from node A to node B on the CBUSH
    • Element y axis will be defined by the perpendicular component of the vector you define with N1N2N3. Are you comfortable with how the N1N2N3 collector works?
    • Element z axis will be cross of x,y
    • Align with the local system x axis
    • The N1N2N3 vector you define will align with y
  • tinh
    tinh Altair Community Member
    edited October 2020
    Altair Forum User said:

    How to update CBUSH element.

    I want to swap its orientation from N1 to N2.

     

     

     

    Your lottery is here:

     

    https://community.altair.com/community?id=community_question&sys_id=a396847a1b2bd0908017dc61ec4bcb00

     

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