NX Nastran DMAP Programmer's Guide - Kxcad.net

Output Data Blocks:
Parameters:
FRRD2
Solves for the steady-state frequency response displacement solution
UXF Solution matrix from frequency response analysis in d- or h-set.
FOLT Frequency response frequency output list with first frequency
truncated if first frequency is zero. UXF is also similarly truncated.
BOV Input-real-no default. Conversion from frequency to reduced
frequency.
Q Output-real-default=0.0. Dynamic pressure.
MACH Output-real-default=0.0. Mach number.
NONCUP Input-integer-default=-1. Algorithm selection. NONCUP=-1 requests
uncoupled algorithm if KXX, BXX, and MXX are diagonal. NONCUP=-
2, requests uncoupled algorithm and off-diagonal terms of KXX, BXX,
and MXX will be ignored.
ITSEPS Input-integer-default=0. Power of ten for convergence parameter
epsilon for iterative solution method.
ITSMAX Input-integer-default=0. Maximum number of iterations for iterative
solution method.
SETNAME Input-character-default='H'. Degree-of-freedom set name represented
by KXX, etc. If KXX represents, or is a subset of, the d-set, then for
maximum efficiency, the rows and columns KXX and MXX must
correspond to or be a partition of the displacement set specified by
SETNAME. If KXX and MXX are a partition then PARTVEC must also
be specified.
ZFREQ Input-integer-default=0. Zero frequency truncation selection. If set to 1
then the zero frequency, if any, will be truncated from UXF and FOL.
FIRSTBAD Output-logical-default=FALSE. Zero frequency truncation flag. Set to
TRUE if first frequency is truncated.
Remarks:
1. FOL and PXF cannot be purged. KXX, BXX, MXX, and QHHL can be purged.
2. FRRD1 is similar to FRDD2 except that FRRD1 has many more efficiency
improvements and viscoelastic material processing. However, FRRD2 performs
special operations with the aerodynamic matrix list, QHHL.
3. CASECC and EDT are required for the iterative solver is NSKIP>0 and the
SMETHOD Case Control command selects the ITER Bulk Data entry. Otherwise
it may be purged.
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