Welcome to Adams/Solver Subroutines - Kxcad.net

Input Arguments
Welcome to Adams/Solver Subroutines
area A double-precision variable that specifies the value of the contact area.
dflag A logical variable that Adams/Solver sets to true when it calls CFFSUB to
evaluate the partial derivatives of the specified functions. Otherwise,
Adams/Solver sets the dflag argument to false.
id An integer variable that provides the identifier of the CONTACT statement
requesting information from CFFSUB. From the identifier, Adams/Solver
automatically recognizes other information (such as the par argument) that is
available in the corresponding statement.
iflag A logical variable that Adams/Solver sets to true when it needs the functional
dependency information from CFFSUB. Functional dependencies are
established with the same calls to SYSARY and SYSFNC that are later used
to compute the values of the CONTACT components (see SYSARY and
SYSFNC). If the iflag argument is false, the values of the user-defined
expressions are computed.
loci A double-precision array that specifies the vector from the reference marker
of the CONTACT I Geometry (IGEOM) to the contact point on IGEOM.
Expressed in the coordinate system of the reference marker of IGEOM.
locj A double-precision array that specifies the vector from the reference marker
of the CONTACT J Geometry (JGEOM) to the contact point on JGEOM.
Expressed in the coordinate system of the reference marker of JGEOM.
nforce A double-precision variable that specifies the value of the contact normal
force.
npar An integer variable that indicates the number of constants you specify in the
USER parenthetical list. This variable provides the CFFSUB evaluation
subroutine with the number of values stored in the par array.
par A double-precision array of constants taken in order from the
FRICTION_FUNCTION USER parenthetical list of the CONTACT
statement.
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