@corus,
thank you for the reply - unfortunately it's not an undefined node set. I think in my case it is the problem, that I defined several reference nodes on an analytical body in the assembly, and due to the fact that an analytical rigid does not contain elements, it is giving me the failure...
I have the same problem - have you solved it? Are you using an analytical rigid? I think it might be the problem having another referencpoint in the assembly on a rigid, rather than on a normal body. But this is just a thought...
Does anyone know?
I think what you want is Plastisizers. Strictly speaking you want to put a high amount of carbon black, to deal with wear and abrasion and on the other side you put oil in your compounds to soften the compound to get better contact to the road. This is what they do at drag-racing.
I am a bit...