JamboTron
Mechanical
- Jan 27, 2006
- 15
I have recently began a model in Geostar using the beam element function. Early simple models e.g fixed cantilever have worked fine. The problem now is that I'm modeling part of a oil platform, this requires 3 different Real Constant sets for different beams.
When I got to run the freq, analysis I get the following error message. STOP 1-SINGULAR MATRIX
What does this mean and where have I made the mistake?
I have kept all beam element sizes approx. the same size for all sections when meshing. I had a few early problems with the '3rd node' setting when selecting a beam section,but I feel comfortable this is not the problem as it usually has it's own type of error message.
Any assistance would be greatly appreciated.
When I got to run the freq, analysis I get the following error message. STOP 1-SINGULAR MATRIX
What does this mean and where have I made the mistake?
I have kept all beam element sizes approx. the same size for all sections when meshing. I had a few early problems with the '3rd node' setting when selecting a beam section,but I feel comfortable this is not the problem as it usually has it's own type of error message.
Any assistance would be greatly appreciated.