B2GG

Subcase Information Entry

B2GG – Direct Input Viscous Damping Matrix Selection

Description

The B2GG command can be used in the Subcase Information section to select a direct input viscous damping matrix.

Format

B2GG = name

Argument	Description
name	Name of a damping matrix that is input in the bulk data section using the DMIG card.

1.	DMIG matrices will not be used unless selected.

2.	This matrix is handled like the damper elements CDAMPi and CVISC.

3.	Terms are added to the viscous damping matrix before any constraints are applied.

4.	The matrix must be symmetric, that is field 4 on the referenced DMIG entry must contain the integer 6.

5.	When multiple instances of this card occur, the referenced DMIG entries are combined. This behavior differs from that of Nastran, which only recognizes the last instance of this card in the same situation.