Variable Name
Size
Description
ifbody
int
Sequential id of RFlex body defined in RecurDyn/Solver. This is a related argument with the 5th argument of MODAL_FORCE subroutine.
Invvarm2
double [3]
An array of double precision type. The array size must be 3. This argument is the invariant variable M2 of a selected RFlex body.
Invariant variable M2 : 
Where, 
is a lumped mass
on the 
node and 
is an initial position of
node with respect to the
reference frame of RFlex body.
errflg
int
Error flag.
If the result of this argument is -1 (means TRUE in Fortran logical value), there is no error.
The others mean that there is an error.