[Patran/Nastran] Displacement superposition
[Patran/Nastran] Displacement superposition
(OP)
hello. I am doing modal analysis with SOL103 of MSC Patran/Nastran.
If the displacement result of mode 1 is selected after analysis with Nastran, it is divided into rotation and translation as shown in the picture below. Can I superposition this movement as a single movement?
Looking at the manual, I found a way to plot each T and R movement of mode 1 at the same time, but I couldn't find a way to display it as one movement by superposition it.

If the displacement result of mode 1 is selected after analysis with Nastran, it is divided into rotation and translation as shown in the picture below. Can I superposition this movement as a single movement?
Looking at the manual, I found a way to plot each T and R movement of mode 1 at the same time, but I couldn't find a way to display it as one movement by superposition it.


RE: [Patran/Nastran] Displacement superposition
RE: [Patran/Nastran] Displacement superposition
As you said, in many papers the analysis mainly considers translation only. However, some consider rotational components as well.
When is rotation information considered? In my analysis result, translation is distributed from E+00 to E-01, and the eigenvalues in the rotation direction are distributed from E-03 to E-19.