Hello Blas,
Many thanks for you replay and kind explanation, and you are right, I should have posted this in FEM forum.
I have solved my model in NX Space System Thermal for orbiting Satellite [Simulated in vacuum, Thus no convection].This solver is used to account for solar, earth, albedo...
I have done a steady state and transient thermal analysis on a model in Space System Analysi. And obtained .Bun files
Now my goal is to check the shift of one part in the model, due to thermal Stress [thermal deformation]
I have mapped the temperature result into NX 12 Nastran solver Sol 101...