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Hypermesh: Modal analysis with enforced displacement (acceleration/frequency) at SPC point

User: "Axel_A"
Altair Community Member
Updated by Axel_A

Hi everone,

I'm trying to do a Freq. resp (modal) with an acceleration input (Acc/frequency) at the fix point of my model (node ID 10) but I find in the H3D result no displacement...

I used this can of cards:

- SPC (node 10) with all DOF checked = 0.0

- SPCD (node 10) with just DOF 2 (Y axis for me) checked = 1.0

- DAERA (node 10) with just DOF 2 (Y axis for me) checked = 1.0

I have a a RLOAD2 for my DAERA with a curve in TABLED1.

My definition in the attachments.

Thx!

Regards,

Axel

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    User: "Adriano_Koga"
    Altair Employee
    Updated by Adriano_Koga

    DAREA is need only for FORCE input, and it should NOT be used with SPC.

     

    In your case, SPCD+SPC is the correct setup, pointint the SPCD into the RLOAD2, set to acceleration.

    remove the DAREA.

    User: "Axel_A"
    Altair Community Member
    OP
    Updated by Axel_A

    Hi Adriano,

    Thx for your reply, now it's working perfectly!

    Regards,

    Axel