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I think you'd be OK with this http://www.scc.kit.edu/scc/sw/msc/NasDirect/Nas_AT_LinearStatic.html

constrain your model

solid mesh <-> solid elements in your fem model. this mesh can be created in a volume/geometry. btw, do not confuse the discretization methods: finite element, finite volume

can you export the correct .dat file and post here?

you cannot run a static analysis (sol 101) without constraints (unless you use param,bailout,-1) solution: constrain your model

now I'm curious how your friend didn't have any error using exactly the same same files

and are you sure you have the nastran input file, as well as the files XB2_MAT1.dat XB2_GRID.dat XB2_GRID_AERO.dat XB2_CBAR.dat XB2_PBAR.dat XB2_CONM2.dat all in the same folder? anyway, it looks like you have an extra digit in "1520.0000" try this one instead MAT1 200 5.17e+12...

there you gohttp://files.engineering.com/getfile.aspx?folder=f2a8dc1b-f731-4212-bd33-9c34d77bb336&file=rand.dat

What is the error? can you post the error message from .f06 here? I can run the model and check if any errors come up

now, by checking the model, the material units seem consistent with the geometry dimensions and applied load I did run the random analysis with a different frequency function generated in another preprocessor - see below FREQ 269.7130369.7293873.5859873.6032377.4589377.4770981.33187+...

better to post your bdf/dat file too much confusion with the units and boundary conditions.. should have asked you this in the first place indeed

1) do you have a specific example? it should work in any version 2) you can use any work directory that you want

I guess the material density you provided is not correct. I guess you meant 7.83e-3 instead of 7.83e-9 ? I don't get you mode #5, what are your boundary conditions? I guess it is fixed at one tip and free at the other, i.e. cantilever beam...?

Hi Yes please let me know. If you want you can send me the beam geometrical characteristics, the material and the load environment and I can provide a quick crosscheck When requesting the RMS stress output, in your nastran file, use this: STRESS(SORT2,PLOT,NORPRINT,PHASE,RMS) = ALL and you...

It depends on the complexity of your model with a large model, if you select many frequency steps, your simulation can last "forever", because you will have too many integration points if your model is simple-ish, it is a compromise between computational cost and results accuracy if you have...

your SRS function is associated to a damping value - probably the one you already defined. Now you also can define modal damping function correspondent to your system.

You can use sol 112 for your transient analysis. sol 112 supports contact