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.
modeid
int
Selected mode sequential id. The user can get the selected mode sequential id using the Get_rflex_modeid auxiliary function.
invvarn5
double
[3]
An array of double precision type. The array size must be 3. This argument is the invariant variable N5 of a selected RFlex body.
Invariant variable N5 : 
Where, 
is a lumped mass
on the 
node and 
is a translational mode
shape vector (3x1) of 
node and 
mode. 
is a rotational mode
shape vector (3x1) of node and 
mode. 
is a number of selected
modes.
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.