How to set up the shock analysis in Pro/Mechanica
How to set up the shock analysis in Pro/Mechanica
(OP)
Could you help to set up the shock analysis for the attached ASY, I have set up the modal analysis and random analysis, actually when I use the use-defined step to get the von-Mises result, and I am not allowed to click the full result tab.
Here I need to run the shock test with 100G & 11ms, and need to evaluate whether it will fail or not. Appreciate very much for your help on this.
Here I need to run the shock test with 100G & 11ms, and need to evaluate whether it will fail or not. Appreciate very much for your help on this.





RE: How to set up the shock analysis in Pro/Mechanica
Tobalcane
"If you avoid failure, you also avoid success."
"Luck is where preparation meets opportunity"
RE: How to set up the shock analysis in Pro/Mechanica
I read a PTC KB article that stated there were some errors in calculating the VM Stress with respect to Dyanmic Random analysis, thus they do not provide any VM stress results in Dynamic Random simulations.
Ansys provides some clarity regarding the directional results from a Random Vibraiton Analysis:
"Since the directional results from the solver are statistical in nature they cannot be combined in the usual way. For example the X, Y, and Z displacements cannot be combined to get the magnitude of the total displacement. The same holds true for other derived quantities such as principal stresses."
However, Ansys uses some sort of special algorithm to produce VM Stress results. I am not sure why PTC cannot have ProM employ the same algorithm.
I wish PTC would do a better job on the documentation side of things with respect to ProM.
Steve
Stephen Seymour, PE
Seymour Engineering & Consulting Group
www.seymourecg.com
RE: How to set up the shock analysis in Pro/Mechanica
Tobalcane
"If you avoid failure, you also avoid success."
"Luck is where preparation meets opportunity"
RE: How to set up the shock analysis in Pro/Mechanica
Try to use Independent mode of ProMechanica.
Bye.