I am using mechanical and I used the following post command to extract the mass of 2 of the 4 bodies in my model. (it's essentially what has been discussed above)
/solu
allsel
cmsel,,comp_1,elem
cmsel,a,comp_2,elem
nsle
!irlf,-1 Commented because irlf command doesnt work with axisymmetric elements
psolve,elform
psolve,elprep
*get,mass_x,elem,,MTOT,X
my_mass_x = mass_x*386.1 !use "my_" prefix to create parameterized output (in lbm)
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