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Singularity in the assembly

Thread starter dog2k5
Start date May 22, 2007

Status: Not open for further replies.

May 22, 2007

dog2k5

Structural

Another easy question. My model is as follows. I have a bolt fixed at both ends (nut and bolt head. the bolt goes through a whole in a plate. The whole is bigger than the bolt shaft. (the bolt and plate are two different parts) When I run the model I get a warning message in the .msg file that says the following

"solver problem. Numerical singularity when processing node 5 (ASSEMBLY) D.O.F. 1 ratio: 6.7117E+14"

Two questions. The first is what is the ratio talking about? It is a huge number. The second is what does (assembly) mean? I only have two part and the node isn't specified on either one of these parts so how would I find node 5 in (assembly)?

Thanks for the help