Importing NASTRAN bdf / Exporting ANSYS cdb - no elements

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hi,

 

im looking to import a NASTRAN mesh into ANSYS.

This can be done directly in workbench, but a lot of information is lost.

 

Specifically I would like to maintain named selections / components - so my strategy was to bring the Nastran bdf into hypermesh, create my groups there, and then export as a cdb before importing it into workbench

 

The problem is whenever I export to cdb I only get nodes in the *.cdb, no elements.

 

I am using Hypermesh 14.0 - anyone have a workaround for this?

 

Thanks !

 

Tyler

 

Tagged:

Answers

  • Q.Nguyen-Dai
    Q.Nguyen-Dai Altair Community Member
    edited February 2018

    Maybe you need do 'conversion' from NASTRAN to ANSYS solver after imported?

    Have a look at my screenshot:

    NastranMSC_Ansys_1.png.9153574904d7894d0db5a346a57e57e3.png

     

    NastranMSC_Ansys_2.png.e82e0c5d7d22712ecfb53de162402a36.png

     

    After that, you got good Ansys model which can be exported to CDB without problem.

    HTH,

     

    PS: I used HW 2017.2.1

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2018

    That worked! Thank you!

  • kush
    kush New Altair Community Member
    edited May 2020

    hello , 

    when we click on convert nastran to ansys in tools the RBE3 rigids cannot be converted its showing in the comments as conversion not supported 

    can anyone please suggest me how to export a hm fille consisting spot weld using nastran as profile to ansys. (hypermesh version is 13)

Categories