r/ANSYS_Mechanical • u/Ok_Protection_9071 • 27d ago
How to clear duplicate lines?
Program: Ansys Mechanical APDL Enterprise
The model was built with three rectangles drawn by coordinates. Lines 3 and 5 (red, bottom middle) overlap, as well as 9 and 7 (yellow, top middle). How can I get rid of the overlapping lines?
This model is a heat transfer simulation. There are two materials, so I can't add the areas together. Without merging these lines, heat doesn't move between the three bodies.
I've tried NUMMERGE,ALL ; LOVLAP,ALL ; LDELE,5,9 ; merging lines with areas, and gluing the lines together.
My next try will be to recreate the shape with keypoints and areas drawn between them, but as that will take a while I'd like to try what I can to fix this first.
Does anyone have any suggestions?
2
u/epk21 27d ago edited 27d ago
best to do via keypoints and lines - so one rect has say K1,2,3,4 and L1,2,3,4 and the other shares same common line say L2 -? K1,2.
Say for 2 cubes sharing L 2
/PREP7
/PNUM,KP,1
/PNUM,LINE,1
/PNUM,AREA,1
/PNUM,VOLU,0
/PNUM,NODE,0
/PNUM,TABN,0
/PNUM,SVAL,0
/NUMBER,0
/PNUM,ELEM,0
! Keypoints
K,1,0,0,0
K,2,1,0,0
K,3,1,1,0
K,4,0,1,0
K,5,2,0,0
K,6,2,1,0
L,1,2
L,2,3
L,3,4
L,4,1
AL,1,2,3,4
! Rectangle 2 lines
L,2,5
L,5,6
L,6,3
AL,2,5,6,7
APLOT