NX Nastran DMAP Programmer's Guide - Kxcad.net

Parameter:
ASG
Computes the aerodynamic extra point displacements
SYMXZ Input-integer-no default. Aerodynamic x-z symmetry flag
ISENS Input-integer-default=0. Set to 1 if a sensitivity analysis is to be
performed
Remarks:
1. TR, KRZX, DIT, ERHM, and UXDAT may be purged if ISENS=1.
2. ASG solves the following equation for UX:
ZZX
IP
AEL
UX
=
where the number of rows in the UX vector is equal to the number of aerodynamic
extra points. The ZZX and PZ vectors have as many rows as there are r-set
degrees of freedom. The IP matrix is a pseudo identity matrix with as many rows
as there are constrained extra points specified on the TRIM Bulk Data entry. The
IP matrix has ones in the row and columns corresponding to the constrained
variable and zeros located elsewhere. The Y vector contains the magnitudes of the
trim variable constraints. The AEL matrix contains the constraint relations (if any)
specified by AELINK Bulk Data entries. It has as many rows as there are AELINK
constraints. It is required that the sum of the number of supported degrees of
freedom plus the number of TRIM constraints and number of AELINK
constraints equal the number of aerodynamic extra points.
PZ
Y
O
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