rotational springs

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kgkoktsi
Posts: 15
Joined: Sun Jul 22, 2012 7:06 am
Location: City University London

rotational springs

Post by kgkoktsi »

Does anybody know how I can model rotational springs to the base of a structure?

Thanks a lot!
vesna
Posts: 3033
Joined: Tue May 23, 2006 11:23 am
Location: UC Berkeley

Re: rotational springs

Post by vesna »

define two nodes at the same location. define rotational spring between these two nodes using zeroLenght element. rotational spring needs to be defined in direction 6. make sure to fix the slave node of the rotational spring in all other directions (e.g., if in 2D you will need to issue command fix 2 1 1 0, where 2 is the node tag of the slave node).
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