NX Nastran DMAP Programmer's Guide - Kxcad.net

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DSVG1
Creates pseudo loads or scalar terms required in sensitivity analysis
Parameters:
NOK4GG Input-integer-default=-1. Structural damping generation flag.
-1 Do not generate
0 Generate
WTMASS Input-real-default=1.0. Specifies scale factor on structural mass
matrix.
IAPP Input-integer-default=1. Analysis type. Allowable values are:
1 Statics, aerostatic, frequency, or transient response
2 Buckling or normal modes
4 Flutter or divergence
DSVGF Input-integer-default=0. Specifies scaling of solution vector by
eigenvalue.
0 No scaling
1Scale
NOPSLG Input-integer-default=0. Pseudo-load generation flag. Set to -1 if no
load generation is requested for the current superelement based on
the SEDV Case Control command.
Remarks:
1. DSVG1 must be executed for mass, stiffness, viscous damping, and structural
damping and, if CDIF='YES', forward and backward perturbed configurations.
2. For transient analysis, DSVG1 must be invoked three times for displacement,
velocity, and acceleration which are obtained from the DSAR module.
3. If NOPSLG ≠
0 , then a null EGX matrix is generated.