Dear Arsalan,
When you say you output the dynamic components of the axial load do you mean you are outputting e.g. M1N1FMxe rather than M1N1FKxe i.e. the static (elastic) component? I can see the dynamic components being much smaller than the static components.
SubDyn can only output the static components (KUe) or dynamic components (MUedotdot), rather than the true reaction loads (which cannot be computed easily for a lattice structure with closed loops). However, the static loads are usually quite close to the true reaction loads, so, I’d recommend that you use e.g. M1N1FKxe rather than M1N1FMxe. I generally do not use the dynamic component. See the SubDyn Theory section (6) of the draft SubDyn User’s Guide and Theory Manual for more information: wind.nrel.gov/nwtc/docs/SubDyn_Manual.pdf.
Best regards,