Set this parameter equal to ELEMENT to request only the condensed structural damping matrix.
Set this parameter equal to FACTOR to request only the structural damping matrix proportional to
the condensed substructure stiffness matrix.
Set this parameter equal to COMBINED to request the structural damping matrix that includes the
combination of both ELEMENT and FACTOR.
Set this parameter equal to NONE to exclude the structural damping matrix for the elements
associated with this substructure property.
If this parameter is omitted or the option is not used as a suboption of the
SUBSTRUCTURE PROPERTY option, the substructure property uses COMBINED as the default with the structural factor specified in the
SUBSTRUCTURE DAMPING option.
Set this parameter equal to ELEMENT to request only the substructure viscous damping matrix
defined as a linear combination of the condensed substructure mass and
stiffness matrices.
Set this parameter equal to FACTOR to request only the viscous damping matrix.
Set this parameter equal to COMBINED to request a viscous damping matrix that includes a
combination of ELEMENT and FACTOR.
Set this parameter equal to NONE to exclude the viscous damping matrix for the elements
associated with this substructure property.
If this parameter is omitted or the option is not used as a suboption of
the
SUBSTRUCTURE PROPERTY option, the substructure property uses COMBINED as the default with the mass and stiffness proportional
Rayleigh damping factors specified under the substructure damping as ALPHA and/or BETA.