Reaction force Extraction

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

I want to extract the reaction forces at the assembly level bolts (not at the mounting locations which can be determined by SPCF). Can anyone suggest how to extract?    Thanks in advance

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2015

    Hi Shashi,

     

    You can use GPFORCE to get force balance output. Goto Controlcards>> global_output_request>> GPFORCE to output grid point forces.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2015

    Thanks for the response Mr. Prakash.

     

    I have tried with this option and i got the below results in .gpf file at a particular grip point for gravity load of 30g in Y-direction.

     

    .........................................................................................................................................................

    Grid point forces for node    73037 Subcase ID =        1

    --------------------------------------------------------------------------------

    Force  Element   x-force    y-force    z-force   x-moment   y-moment   z-moment

    --------------------------------------------------------------------------------

    SPC       --    0.000E+00  0.000E+00  0.000E+00  0.000E+00  0.000E+00  0.000E+00

    Appl.     --    0.000E+00 -4.122E-01  0.000E+00  0.000E+00  0.000E+00  0.000E+00

    F-MPC     --    2.101E+01  4.283E+01 -6.308E-01 -6.507E+01  3.140E+01 -3.138E+00

    BAR     358848 -2.101E+01 -4.242E+01  6.308E-01  6.507E+01 -3.140E+01  3.138E+00

    RBE2    358636  2.101E+01  4.283E+01 -6.308E-01 -6.507E+01  3.140E+01 -3.138E+00

    Total     --    3.553E-14 -1.563E-13  1.066E-14 -8.527E-14 -2.132E-14  0.000E+00

    --------------------------------------------------------------------------------

     

    But i am not understanding what it is giving, can you please explain all in detail.

     

    Thanks in advance.

     

    Shashi
  • Rahul_P1
    Rahul_P1
    Altair Employee
    edited June 2015

    The table looks to me to be giving us the element type and the various force components,

     

    Why not contour the result in HyperView to understand,

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2015

    Is it really possible to see the reaction forces in contour at mountings?

  • Rahul_P1
    Rahul_P1
    Altair Employee
    edited June 2015

    Yes, you should see spcf in the result type in HyperView, you can contour it and also query the value at required nodes. 

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