Section 5: Design File Data in STR Order - PDS - Help

Plant Design System (PDS) Stress Analysis Interface (PD_Stress)

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Section 5 of the HITS report contains a record of how the network is traversed as the neutral file is being generated. The software examines the network of piping and chooses the best (that is, the one least likely to result in problems from PDSTRESS) topo to begin the network traversal on. PDSTRESS prefers certain navigation sequences over others and the interface software tries to choose the optimal sequence.

PDSTRESS also requires that the traversal of the network be branch first order. This means that whenever a branch is encountered in the network, the traversal must head down the branch before continuing down the header.

To traverse the network in branch first order manner you start on the header topo and travel connect point by connect point until the value of branch is greater than 0 at some node. When branch is positive then you jump down to the new topo and start traversing it until you come to another branch or to the end. If you encounter another branch then you must jump again to another topo. When the end of the topo is found then you return to the topo from which you jumped and continue tracing.

Sample Section 5

Design file data in STR order
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Name Occ cp # X Y Z Node Direct Section Flags Topo Seq Branch Sg_occ
COMP 81 0 -0.15 0.00 0.00 -2 1 1 3 2 19 0 49 1
COMP 81 1 0.00 0.00 0.00 1 1 1 3 2 18 0 49 2
PIPE 49 1 0.00 0.00 0.00 1 1 1 5 2 17 0 49 3
PIPE 49 2 1.50 0.00 0.00 2 1 1 5 2 16 57 49 4
COMP 82 0 3.75 0.00 0.00 0 2 0 3 0 0 0 49 5
COMP 82 1 3.00 0.00 0.00 3 1 1 3 2 13 0 49 6
COMP 82 2 3.75 0.75 0.00 4 2 1 3 2 12 0 49 7
PIPE 50 1 3.75 0.75 0.00 4 2 1 5 2 11 0 49 8
PIPE 50 2 3.75 2.75 0.00 5 2 1 5 2 10 0 49 9
COMP 84 0 3.75 3.06 0.00 0 4 0 3 0 0 0 49 10
COMP 84 1 3.75 2.75 0.00 5 4 1 3 2 9 0 49 11
COMP 84 2 3.97 3.28 0.00 6 3 1 3 2 8 0 49 12
PIPE 51 1 3.97 3.28 0.00 6 5 1 5 2 7 0 49 13
PIPE 51 2 4.68 3.99 0.00 7 5 1 5 2 6 0 49 14
COMP 85 0 4.90 4.21 0.00 0 7 0 3 0 0 0 49 15
COMP 85 1 4.68 3.99 0.00 7 6 1 3 2 5 0 49 16
COMP 85 2 5.21 4.21 0.00 8 7 1 3 2 4 0 49 17
PIPE 52 1 5.21 4.21 0.00 8 7 1 5 2 3 0 49 18
PIPE 52 2 6.21 4.21 0.00 9 7 1 5 2 2 0 49 19
COMP 86 0 6.68 4.21 0.00 0 8 0 3 0 0 0 49 20
COMP 86 1 6.21 4.21 0.00 9 7 1 3 2 1 20 49 21
COMP 86 2 7.15 4.21 0.00 14 7 1 3 2 -1 20 51 22
COMP 86 3 6.68 3.74 0.00 13 8 1 3 1 8 -29 50 23
SUPP 6 1 1.50 0.00 0.00 2 9 1 8 4 1 -44 49 24
SUPP 6 2 1.50 0.00 -0.41 -3 9 1 8 4 2 0 49 25
PIPE 55 1 6.68 3.74 0.00 13 8 1 5 1 7 0 50 26
PIPE 55 2 6.68 1.74 0.00 12 8 1 5 1 6 0 50 27
COMP 91 0 6.68 1.60 0.00 0 8 0 3 0 0 0 50 28
COMP 91 1 6.68 1.45 0.00 11 8 1 3 1 4 0 50 29
COMP 91 2 6.68 1.74 0.00 12 8 1 3 1 5 0 50 30
COMP 92 0 6.68 1.00 0.00 0 8 0 3 0 0 0 50 31
COMP 92 1 6.68 1.45 0.00 11 8 1 3 1 3 0 50 32
COMP 92 2 6.68 0.56 0.00 10 8 1 3 1 2 0 50 33
COMP 93 0 6.68 0.41 0.00 0 8 0 3 0 0 0 50 34
COMP 93 1 6.68 0.56 0.00 10 8 1 3 1 1 0 50 35
COMP 93 2 6.68 0.26 0.00 -1 8 1 3 1 0 0 50 36
PIPE 53 1 7.15 4.21 0.00 14 7 1 5 2 -2 0 51 37
PIPE 53 2 8.15 4.21 0.00 15 7 1 5 2 -3 0 51 38
COMP 87 0 8.38 4.21 0.00 0 7 0 3 0 0 0 51 39
COMP 87 1 8.15 4.21 0.00 15 7 1 3 2 -4 0 51 40
COMP 87 2 8.61 4.21 0.00 16 7 1 3 2 -5 0 52 41
PIPE 54 1 8.61 4.21 0.00 16 7 1 5 2 -6 0 52 42
PIPE 54 2 10.61 4.21 0.00 17 7 1 5 2 -7 49 52 43
COMP 88 0 10.61 4.21 0.13 0 10 0 3 0 0 0 52 44
COMP 88 1 10.61 4.21 0.00 17 10 1 3 3 1 -22 52 45
COMP 88 2 10.61 4.21 0.26 18 10 1 3 3 2 0 54 46
COMP 89 0 10.61 4.21 0.38 0 10 0 3 0 0 0 54 47
COMP 89 1 10.61 4.21 0.26 18 10 1 3 3 3 0 54 48
COMP 89 2 10.61 4.21 0.51 19 10 1 3 3 4 0 54 49
COMP 90 0 10.61 4.21 0.61 0 10 0 3 0 0 0 54 50
COMP 90 1 10.61 4.21 0.51 19 10 1 3 3 5 0 54 51
COMP 90 2 10.61 4.21 0.71 20 10 1 3 3 6 0 54 52
PIPE 56 1 10.61 4.21 0.71 20 10 1 5 3 7 0 54 53
PIPE 56 2 10.61 4.21 1.21 -1 10 1 5 3 8 0 54 54
PIPE 30001 1 10.61 4.21 0.00 17 7 1 5 2 -8 49 53 55
PIPE 30001 2 12.61 4.21 0.00 -1 7 1 5 2 -9 0 53 56
PIPE 30002 1 1.50 0.00 0.00 2 1 1 5 2 15 57 49 57
PIPE 30002 2 3.00 0.00 0.00 3 1 1 5 2 14 0 49 58