Problem with ACCEL1 and ACCEL2

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

Hello!

 

I am having problems with accel1 and accel2 cards. When  I apply the loads they exist in the input file but when I run the analysis and look at the results, 3 of 9 accelerations are not applied. The 3 cases that are not working are all applied on the same node. Any ideas?

image.png.2b3454f52947e245b20d316ea58dcc97.png

The marked cases are the ones where the accelerations are not applied. The two first cases are not accelerations.

 

Tagged:

Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    Hi @fredriki

     

    Is there any constraint near the node where the load is applied?

     

    Is it possible to share the model file?

     

    Please use the file transfer link in my signature to share the model file

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    The node being accelerated is a CONM2 element with inertia properties defined in the elements card, it is attached to RBE3 elements that are connected to a floor of shell elements. Due to customer requirements, I am not allowed to share the model file, I can try to share parts of it to make it easier for you to help me.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    Hi @fredriki

     

    I will try to recreate a similar scenario and will update you my findings,

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    Thank you very much! I attached a part of the model file to your file transfer.

Categories