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Netzplantechnik (NPT) |
| © Ingenieurbüro Ottlik |
 Netzplan Inhaltsverzeichnis
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(Auszug Lehrunterlage NETZPLAN) |
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CPM-Netzplan Pufferzeiten
Berechnung der folgenden Größen des Vorgangs (i,j):
- Gesamtpufferzeitzeit ( GP(i,j)=SZ(j)-FZ(i)-D(i,j) )
- freie Pufferzeit ( FP(i,j)=FZ(j)-FZ(i)-D(i,j) )
- freier Rückwärtspuffer ( FRP(i,j)=SZ(j)-SZ(i)-D(i,j) )
- unabhängige Pufferzeit ( UP(i,j)=MAX(0,FZ(j)-SZ(i)-D(i,j)) )
| Vorgang | D(i,j) | GP(i,j) | FP(i,j) | FRP(i,j) | UP(i,j) |
| P1 (1,2) | 3 | 11-0-3=8 | 3-0-3=0 | 11-8-3=0 | MAX(0,3-8-3)=0 |
| P2 (1,3) | 3 | 11-0-3=8 | 3-0-3=0 | 11-8-3=0 | MAX(0,3-8-3)=0 |
| P3 (1,4) | 3 | 11-0-3=8 | 3-0-3=0 | 11-8-3=0 | MAX(0,3-8-3)=0 |
| P4 (1,20) | 30 | 70-0-30=40 | 62-0-30=32 | 70-8-30=32 | MAX(0,62-8-30)=0 |
| P5 (2,5) | 5 | 39-3-5=31 | 8-3-5=0 | 39-11-5=23 | MAX(0,8-11-5)=0 |
| P6 (2,6) | 6 | 38-3-6=29 | 9-3-6=0 | 38-11-6=21 | MAX(0,9-11-6)=0 |
| P7 (2,7) | 4 | 40-3-4=33 | 7-3-4=0 | 40-11-4=25 | MAX(0,7-11-4)=0 |
| P8 (5,9) | 4 | 43-8-4=31 | 12-8-4=0 | 43-39-4=0 | MAX(0,12-39-4)=0 |
| P9 (6,10) | 5 | 43-9-5=29 | 14-9-5=0 | 43-38-5=0 | MAX(0,14-38-5)=0 |
| P10 (7,11) | 6 | 46-7-6=33 | 13-7-6=0 | 46-40-6=0 | MAX(0,13-40-6)=0 |
| P11 (2,8) | 18 | 29-3-18=8 | 21-3-18=0 | 29-11-18=0 | MAX(0,21-11-18)=0 |
| P12 (9,13) | 4 | 47-12-4=31 | 39-12-4=23 | 47-43-4=0 | MAX(0,39-43-4)=0 |
| P13 (10,14) | 4 | 47-14-4=29 | 39-14-4=21 | 47-43-4=0 | MAX(0,39-43-4)=0 |
| P14 (11,15) | 1 | 47-13-1=33 | 39-13-1=25 | 47-46-1=0 | MAX(0,39-46-1)=0 |
| P15 (8,12) | 18 | 47-21-18=8 | 39-21-18=0 | 47-29-18=0 | MAX(0,39-29-18)=0 |
| P16 (13,16) | 9 | 56-39-9=8 | 48-39-9=0 | 56-47-9=0 | MAX(0,48-47-9)=0 |
| P17 (16,17) | 2 | 58-48-2=8 | 50-48-2=0 | 58-56-2=0 | MAX(0,50-56-2)=0 |
| P18 (16,18) | 2 | 58-48-2=8 | 50-48-2=0 | 58-56-2=0 | MAX(0,50-56-2)=0 |
| P19 (16,19) | 2 | 58-48-2=8 | 50-48-2=0 | 58-56-2=0 | MAX(0,50-56-2)=0 |
| P20 (17,20) | 12 | 70-50-12=8 | 62-50-12=0 | 70-58-12=0 | MAX(0,62-58-12)=0 |
| S1 (3,2) | 0 | 11-3-0=8 | 3-3-0=0 | 11-11-0=0 | MAX(0,3-11-0)=0 |
| S2 (4,3) | 0 | 11-3-0=8 | 3-3-0=0 | 11-11-0=0 | MAX(0,3-11-0)=0 |
| S3 (14,13) | 0 | 47-39-0=8 | 39-39=0 | 47-47-0=0 | MAX(0,39-47-0)=0 |
| S4 (15,14) | 0 | 47-39-0=8 | 39-39=0 | 47-47-0=0 | MAX(0,39-47-0)=0 |
| S5 (12,15) | 0 | 47-39-0=8 | 39-39=0 | 47-47-0=0 | MAX(0,39-47-0)=0 |
| S6 (18,17) | 0 | 58-50-0=8 | 50-50=0 | 58-58-0=0 | MAX(0,50-58-0)=0 |
| S7 (19,18) | 0 | 58-50-0=8 | 50-50=0 | 58-58-0=0 | MAX(0,50-58-0)=0 |
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