NX Nastran DMAP Programmer's Guide - Kxcad.net

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OPTGP0
p-element analysis preprocessor
OPTGP0 p-element analysis preprocessor
Preprocesses the input design optimization shape basis vectors for p-element analysis.
Format:
OPTGP0 GEOM1M,GEOM2M,MEDGE,EDOM,UNUSED5,UNUSED6,UNUSED7,
DEQATN,DEQIND/
EDOMM/
DELG $
Input Data Blocks:
GEOM1M Table of Bulk Data entry images related to geometry and updated for
the current p-level.
GEOM2M Table of Bulk Data entry images related to element connectivity and
scalar points and updated for the current p-level.
MEDGE Edge table for p-element analysis.
EDOM Table of Bulk Data entries related to design sensitivity and
optimization.
unused5 Unused and may be purged.
unused6 Unused and may be purged.
unused7 Unused and may be purged.
DEQATN Table of DEQATN Bulk Data entry images.
DEQIND Index table to DEQATN data block.
Output Data Block:
EDOMM Table of Bulk Data entries related to design sensitivity and
optimization updated for p-element analysis.
Parameter:
DELG Input-real-default=0.1. Scale factor on perturbed length.
Remark:
OPTGP0 preprocesses the shape basis vectors defined at the p-element geometry level
for both the GMCURV or POINT option and generates DVGRID entry images at the
grid-n points (a point on an FEEDGE, FEFACE or FEBODY entity with variable
number of degrees-of-freedom).