A MATERIAL DISTRIBUTIONSOSCHEDULING FOR RIGGINGSHIP-HULL BLOCKS WITH PIPESK Noda, S Shindo, H Kimura
Kyushu University, Japan1

Outline
1. Background and Purpose
2. Expression of the Pipes
3. Pipe Assembly Order
4. Simulation
5. Discussion
6. Conclusion and Future Works2

Background• In the pprecedence rigging
gg g of shipbuilding,pg, most of the man-hour of rigging
gg g
consists of piping work.
•••

About 1,000 pipes only in anenginei roomThe assembly order is decided byskilled workers.
The period of assembly : about six
days
When all pipes are set in thesame place…
－
・ Wide space needed

・ Taking long time to find－objective pipes
3

Related Works• An assembly simulation system(Y Okumoto, 2009)– Very standard method– Confirming procedure of installation withanimation• Automatic scheduling system of outfitting process planning(Y Wei and U Nienhuis,
Nienhuis 2009)– Automatic scheduling system of outfitting process planning– Components’ppposition, material, weight,
g … is considered.
– Deciding pipe assembly order automaticallyOur System: dividing the pipes into several groups automatically4

Purpose•

Dividing the pipes into several groups automatically assemblyorder depends on the period of the piping works

①

②

③

④

Temporary space•

Distributing pipes which assembly in one or two days at temporary
space placed pipes

To reduce the burden of workers
To reduce temporary space which placed pipes
5Pipe Data•

We used piping data extracted from CAD data of shipbuilding design
systemy"MATES" used in Oshima Shipbuildingpg Co..

・・・

PipeN = 48
YD027 2 40 5.5 2 11950.00 -5800.00 9141.17 バカ穴貫通着目点
KeiroN = 1, TenQt = 311568 60 -5800.00
11568.60-5800 00 9154
9154.30
30 40
Main pipe
11799.90 -5800.00 9154.30
12550.60 -5800.00 9088.63 40
KeiroN = 2, TenQt = 311679 90 -5800.00
11679.90
5800 00 9154
9154.30
30
Branch11679.90 -5800.00 9277.41
pipe
11480.24 -5800.00 9289.02 40
KeiroN = 3

•

•
•
•

The pipes are illustrated by a “main pipe” and “branch pipes”.
Coordinates of the start point
point, the end point
point, the point(s) of bend(s)Outer diameters of both ends of main pipe and end points of branch pipes
When the pipes penetrate deck, the coordinates of the penetration points
andd th
the ttypes off theth penetrationt ti
6

Pipe Data•

We used piping data extracted from CAD data of shipbuilding design
systemy"MATES" used in Oshima Shipbuildingpg Co..

・・・

PipeN = 48
YD027 2 40 5.5 2 11950.00 -5800.00 9141.17 バカ穴貫通着目点
KeiroN = 1, TenQt = 311568 60 -5800
11568.60
5800.00
00 91549154.3030 4011799.90 -5800.00 9154.30
12550.60 -5800.00 9088.63 40
KeiroN = 2, TenQt = 311679 90 -5800.00
11679.90
5800 00 9154
9154.303011679.90 -5800.00 9277.41
11480.24 -5800.00 9289.02 40
KeiroN = 3

•
•
•
•

The pipes are illustrated by a “main pipe” and “branch pipes”.
Coordinates of the start point
point, the end point
point, the point(s) of bend(s)Outer diameters of both ends of main pipe and end points of branch pipes
When the pipes penetrate deck, the coordinates of the penetration points
andd th
the ttypes off theth penetrationt ti
7

Pipe Data•

We used piping data extracted from CAD data of shipbuilding design
systemy"MATES" used in Oshima Shipbuildingpg Co..

・・・

PipeN = 48
YD027 2 40 5.5 2 11950.00 -5800.00 9141.17 バカ穴貫通着目点
KeiroN = 1, TenQt = 311568 60 -5800.00
11568.60-5800 00 9154
9154.3030 4011799.90 -5800.00 9154.30
12550.60 -5800.00 9088.63 40
KeiroN = 2, TenQt = 311679 90 -5800.00
11679.90
5800 00 9154
9154.303011679.90 -5800.00 9277.41
11480.24 -5800.00 9289.02 40
KeiroN = 3

•
•
•
•

The pipes are illustrated by a “main pipe” and “branch pipes”.
Coordinates of the start point
point, the end point
point, the point(s) of bend(s)Outer diameters of both ends of main pipe and end points of branch pipes
When the pipes penetrate deck, the coordinates of the penetration points
andd th
the ttypes off theth penetrationt ti
8

Pipe Data•

We used piping data extracted from CAD data of shipbuilding design
systemy"MATES" used in Oshima Shipbuildingpg Co..

・・・

PipeN = 48
YD027 2 40 5.5 2 11950.00 -5800.00 9141.17 バカ穴貫通着目点
KeiroN = 1, TenQt = 311568 60 -5800.00
11568.60-5800 00 9154
9154.3030 4011799.90 -5800.00 9154.30
12550.60 -5800.00 9088.63 40
KeiroN = 2, TenQt = 311679 90 -5800.00
11679.90
5800 00 9154
9154.303011679.90 -5800.00 9277.41
11480.24 -5800.00 9289.02 40
KeiroN = 3

•
•
•
•

The pipes are illustrated by a “main pipe” and “branch pipes”.
Coordinates of the start point
point, the end point
point, the point(s) of bend(s)Outer diameters of both ends of main pipe and end points of branch pipes
When the pipes penetrate deck, the coordinates of the penetration points
andd th
the ttypes off theth penetrationt ti
9

Pipe Data
The type of penetration• Tight hole penetration or loose hole penetration

・penetrating sleeves
・pass through sleeves
・socket with inside screw
・scuppers
・side deep deck pieces
・doubling plates
・high pressure pipe
penetration pppieces・focus points of tight hole
penetration
・focusfocus points of loose hole
penetration
10

3D-Expression of the Pipes•••

To understand pipes’ information visually
Data converter that loads pipes’
pipes data and generates X3D file
X3D files are available with X3D viewer for free (e.g. Flux Player).

Bow
side

Stern
side
Z

Y

X

The normal position
11

3D-Expression of the Pipes
function：Displaying
p y g the data of the ppipe
p on which is clicked on thescreenUpside-down
position
iti(assembling period)

Y

Z

X

12

Pipe Assembly Order
it is difficult to decide detailed assemblyorder…
dPriority
１．Pipes penetrating/fixed ondeck
２ Pipes located lower
２．PipesIf pipes have the same value
of Z…
３．Pipes with 80-200mm inouter diameter
４ Pipes with 65mm or less in
４．Pipesouter diameter②

80mm and over

65mm and less
Deck

Assemble lower p
pipe
p
early

13

Distribution Plan（Model Ship A）• 250 mm and over pipes（red ones）

250 mm and over pipes later→Positioned high place, the pipes are assembled last
These pipes distributed different space from other pipes
14

Analyzing of Pipes• Model ship A

The number of pipes by diameter
184
180
160

120
99

98

78

80

26

25

42
32

15

20

45

5

13

13

41
25

12

■penetration pipes

25
3

6

8

7
300

25

41

250

41

200

54

60
40

■pipes(include
penetration pipes)

64

150

100

5

2

600

500

400

350

125

100

80

65

50

40

32

25

20

0
15

The numb
ber of pipes

140

Outer diameter(mm)250mm and over pipes：22（2.7% of the whole pipes)
80-200mm pipes: 218（26.9% of the whole pipes)
65mm and less pipes：569（70.3% of the whole pipes)
Total of penetration pipes：225（27.8% of the whole pipes)
15

Distribution Plan(Model Ship A)• Distribution: 1/4
Red pipes: Pipes which attached at the current step
Transparent pipes: The pipe which attached at thesubsequentbt stepst
Green spheres: Points of penetration

１．Pipes penetrating on thedeck
２． Pipes located lower （Pipes
h
have
hi
higherh valuel off Z）
(If pipes have same value ofZ… )３．Pipes with 80-200mm
80 200mm inouter diameter
４． Pipes with 65mm or less inouter diameter16

Distribution Plan(Model Ship A)• Distribution: 2/4
Red pipes: Pipes which attached at the current stepBlue pipes: Installed pipes
T
Transparentt pipes:i
Th pipeThei whichhi h attached
tt h d att th
thesubsequent steps
Green spheres: Points of penetration

１．Pipes penetrating on thedeck
２． Pipes located lower （Pipes
h
have
hi
higherh valuel off Z）
(If pipes have same value ofZ… )３．Pipes with 80-200mm
80 200mm inouter diameter
４． Pipes with 65mm or less inouter diameter17

Distribution Plan(Model Ship A)• Distribution: 3/4
Red pipes: Pipes which attached at the current stepBlue pipes: Installed pipes
T
Transparentt pipes:i
Th pipeThei whichhi h attached
tt h d att th
thesubsequent steps
Green spheres: Points of penetration

１．Pipes penetrating on thedeck
２． Pipes located lower （Pipes
h
have
hi
higherh valuel off Z）
(If pipes have same value ofZ… )３．Pipes with 80-200mm
80 200mm inouter diameter
４． Pipes with 65mm or less inouter diameter18

Distribution Plan(Model Ship A)• Distribution: 4/4
Red pipes: Pipes which attached at the current stepBlue pipes: Installed pipes
T
Transparentt pipes:i
Th pipeThei whichhi h attached
tt h d att th
thesubsequent steps
Green spheres: Points of penetration

１．Pipes penetrating on thedeck
２． Pipes located lower （Pipes
h
have
hi
higherh valuel off Z）
(If pipes have same value ofZ… )３．Pipes with 80-200mm
80 200mm inouter diameter
４． Pipes with 65mm or less inouter diameter

19

Enlarged View of Model Ship A

Distribution: 1/1
20

Enlarged View of Model Ship A

Distribution: 2/4
21

Enlarged View of Model Ship A

Distribution: 3/4
22

Enlarged View of Model Ship A

Distribution: 4/4
23

Distribution plan(Model ship B)• Distribution: 1/4
Red pipes: Pipes which attached at the current step
Transparent pipes: The pipe which attached at thesubsequentbt stepst
Green spheres: Points of penetration

１．Pipes penetrating on thedeck
２． Pipes located lower （Pipes
h
have
hi
higherh valuel off Z）
(If pipes have same value ofZ… )３．Pipes with 80-200mm
80 200mm inouter diameter
４． Pipes with 65mm or less inouter diameter24

Distribution plan(Model ship B)• Distribution: 2/4
Red pipes: Pipes which attached at the current stepBlue pipes: Installed pipes
T
Transparentt pipes:i
Th pipeThei whichhi h attached
tt h d att th
thesubsequent steps
Green spheres: Points of penetration

１．Pipes penetrating on thedeck
２． Pipes located lower （Pipes
h
have
hi
higherh valuel off Z）
(If pipes have same value ofZ… )３．Pipes with 80-200mm
80 200mm inouter diameter
４． Pipes with 65mm or less inouter diameter25

Distribution plan(Model ship B)• Distribution: 3/4
Red pipes: Pipes which attached at the current stepBlue pipes: Installed pipes
T
Transparentt pipes:i
Th pipeThei whichhi h attached
tt h d att th
thesubsequent steps
Green spheres: Points of penetration

１．Pipes penetrating on thedeck
２． Pipes located lower （Pipes
h
have
hi
higherh valuel off Z）
(If pipes have same value ofZ… )３．Pipes with 80-200mm
80 200mm inouter diameter
４． Pipes with 65mm or less inouter diameter26

Distribution plan(Model ship B)• Distribution: 4/4
Red pipes: Pipes which attached at the current stepBlue pipes: Installed pipes
T
Transparentt pipes:i
Th pipeThei whichhi h attached
tt h d att th
thesubsequent steps
Green spheres: Points of penetration

１．Pipes penetrating on thedeck
２． Pipes located lower （Pipes
h
have
hi
higherh valuel off Z）
(If pipes have same value ofZ… )３．Pipes with 80-200mm
80 200mm inouter diameter
４． Pipes with 65mm or less inouter diameter27

Distribution plan（Model ship B）• The pipes with over 250 mm
in diameter
Red pipes: Pipes which attached at the current step
pipes:
p
Installed ppipespBlue pTransparent pipes: The pipe which attached at thesubsequent steps
Green spheres: Points of penetration

１．Pipes penetrating on thedeck
２． Pipes located lower （Pipes
h
have
hi
higherh valuel off Z）
(If pipes have same value ofZ… )３．Pipes with 80-200mm
80 200mm inouter diameter
４． Pipes with 65mm or less inouter diameter

28

This study’s features and the evaluation•••

Loading pipes’
pipes data
Distribution according to the priority
Generatingg X3D file

Only 1second The on-site supervisors in this shipyard comment…
• Almost practical level• Preferable to use it for free
• Trying it in practice and confirming usefulness

29

Interference of pipes and handling of it

④

③
②

②

①

①
③

Assembly order①→②→③→④

when pipe ② is assembled
earlier, pipe ③ cannot be
assembled with cranes
30Interference of pipes and handling of it

④

③
②

②

①

①
③

Assembly order①→②→③→④

when pipe ② is assembled
earlier, pipe ③ cannot be
assembled with cranes

It is desirable to be possible to change order of pipe ②
with that of pipe ③31

Interference of pipes and handling of it

①
②
③
④

impossible toexchange ② and ③
order•

Distribution
1/4

Distribution
2/4

①
②
③
④
・・・

・・・

Distribution
2/4

・・・

・・・

Distribution
1/4

possible to exchange② and ③ order

The pipe which it is hard to attach later have to be grouped with interfered
pp
pipes
32

Pipes interference check function
the assumption that pipes are installed by cranes
projecting pipes on the X-Y plane• 3-D interference p
problem into 2-D p
problem• Cylinders into rectangles
simplify33

Test of this function• Model ship A

Distribution
1/4• Red pipes are interfered• These pipes belong todifferent groups…

The same group ispreferable
Distribution
2/4

34

Test of this function

Beforeafter

The same group

Distribution 1/4

Distribution 1/4

35

An Issue of this function
Pipes arefloating in
the air

Fixed pipe groupas the samegroup too

Pipe support informationis needed
36

Precision of approximation• Pipes are approximated as aggregate of rectangles
Not accurate nearconnecting
ti point
i t

37

Precision of approximation• Pipes are approximated as aggregate of rectangles
But…

On-site workers deal withpipes are a little interfered

38

Discussion 1. Problem of assembly orderFigure of Distribution 2/4
Blue pipes： pipes assembled at
distribution 1/4
Red pipes: pipes assembled at
distribuyion 2/4
Transparent pipes ：pipes assembled atafter
ft 2/4•••

Only this pipe belongs to distribution ¾
This pipe should be in same group as theright and left pipes
W needWe
d ththe systemt
thatth t lastl t pipei iis
grouped as the other pipes
39

Discussion 2. Area division•••

Dividing an engine room to some parts (4-6)
Assign one worker to one area
Work in parallel

40

Discussion 2. Area division•

Positions of division borders are depend on positions of bulkheads
It varies according to ships•

It is favorable to be able to deside the number of partitions andposition of theirs manually

41

Conclusion & future works
Conclusion•A
A new systemt
thatth t divides
di id theth pipesiiinto
t severall
groups considering the assembling order thatskilled workers adopt•Pipes interference check function•3-D display of distributed pipes
the burden of workers is reduced

Future works• Blushing up pipes interference check function• Study of further rules of grouping• Area division• Discovering further problems in practice42