NX Nastran DMAP Programmer's Guide - Kxcad.net

1485
UMERGE
Merges two matrices based on USET
2. SET1 or SET2, but not both, may be set to 'COMP' (or blank) which means that one
set is the complement of the other. For example, if MAJOR='G', SET1='A', and
SET2='COMP' (or blank) then SET2 is assumed to be those degrees-of-freedom in
the g-set that are not in the a-set.
3. If SET1 and SET2 are unique subsets of MAJOR but their union does not comprise
all of the degrees-of-freedom in the MAJOR set, then the SET2 partition is
assumed to be SET2='COMP'. For example, if MAJOR='G', SET1='A', and
SET2='S' then SET2 is assumed to be 'COMP' (See Remark 2) and not just the s-set.
4. The set names MAJOR, SET1, and SET2, may specify a combination of set names
separated by a plus (+) or minus (-) character. The plus (+) character indicates a
union and the minus (-) character an exclusion. For example, 'a-b+m' indicates
the a-set without the b-set and then this resultant set is then unioned with the
m-set.
5. USET and A may not be purged.
6. A11 or A21 may be purged, in which case, they are assumed to be null.
Examples:
Sets
m
sb
sg
o
q
r
c
bf
be*
e
k
sa
j
To merge four matrices into a single matrix based on degrees-of-freedom sets.
1. Append PHO to PHA.
b
s
l
t
a. UMERGE USET,PHA,PHO/PHF/'F'/'A' $
a
d
Supersets
*The be set is reserved for a future capability.
f
fe
n
ne
g
js
p
ks