how to define interface rotational spring in Joint2D

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KSH
Posts: 3
Joined: Tue May 15, 2018 3:03 am
Location: Guangzhou University

how to define interface rotational spring in Joint2D

Post by KSH »

When I tried to use Joint 2D element for my own 4-stroey frame,I found one error below.I just can't define the center node for my Joint 2D element.
"WARNING node tag specified for the center node already exists.
Use a new node tag.
Joint2D element: 1111"
Any Help?!Thank you.
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