Add mass for rigid body

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

Hi,

I am trying to add mass to a sphere rigid body by adding GRAV load. Because I used shell elements to represent this rigid sphere so the volume is not true. 

Could you please tell me how to specify mass for this rigid body?

Tks

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Answers

  • Simon Križnik
    Simon Križnik Altair Community Member
    edited December 2019

    Hi,

     

    You can directly add mass to the rigid body. Select rigid body with Rbody Manager or Card Edit in the graphics area and input added mass in MASS field.

    <?xml version="1.0" encoding="UTF-8"?>rigid.jpg

  • pohan
    pohan Altair Community Member
    edited December 2019

    Thank you.

    Should I have to declare the direction of gravity and the value of g by the GRAV load?

  • Simon Križnik
    Simon Križnik Altair Community Member
    edited December 2019

    You're welcome.

     

    Yes, you should fully define the gravity loading. Make sure to select all the nodes in your model (master as well as slave nodes of a rigid body). Here is the procedure:


     

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