Variable Name
Size
Description
ifbody
int
Sequential id of RFlex body defined in RecurDyn/Solver. This is a related argument with 5th argument of the MODAL_FORCE subroutine.
invvarm1
double
An array of double precision type. This argument is the invariant variable M1 of a selected RFlex body. The invariant variable M1 is the total mass of RFlex body.
Invariant variable M1 : 
where, 
is a lumped mass on the
node.
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.