I started this thread so I'll jump back in with my 2 cents. The conversion of displacement or velocity or acceleration time histories into an acceleration PSD or a velocity or displacement spectral density can be calculated by closed-form equations - outside of Algor, Nastran, or Cosmos after...
Thank you for the information. I have been using Cosmos/Works which is very easy to use due to its tight integration with SolidWorks - however, it is limited - unless we step up to the Cosmos/M package which is very powerful, but a completely different interface outside of SolidWorks...
I am currently using Cosmos/Works. I must do design and analysis and manufacturing and testing - so I can not devote all my time to analysis. Cosmos/Works has worked well for linear static and some thermal analysis, and the learning curve is fairly quick. However, I can only mesh with solid...