Unstable rigid

Altair Forum User

im getting an error will running the model ie unstable rigid.i have change Ispher=1

what does these mean how can i fix this

Altair Forum User

Some things you should check:

 

1. All the Nodes should be properly connected, that means all slave nodes should be structural (or at least have some mass), masternode should be non-structural

2. set Isphere=1

3. Give a little additional mass (via Mass field entry)