Building ships on computers
Brian Farrimond
Ella Pereira
Mark Anderson
(Edge Hill University)
1
Ship components
• Hull
• Above deck
• Propulsion
2
Hull
3
Hull
4
Hull
5
Hull
Deck
Stern
Port
Bow
Starboard
Port is left
Starboard is right
side of the ship
side of the ship
6
Hull
Rudder
(to steer the ship)
Keel
(ship’s backbone)
7
Hull: Keel
• The
backbone
of the
ship
Titanic’s
keel
• First part
of the
ship to be
made
Do you recognise
the ship?
Port
Starboard
Which is
- port
- starboard?
Bow end
8
Hull: Frames
• The
ribs of
the ship
Frames
Keel
9
Hull: Frames
• The
ribs of
the ship
Starboard
Frames
Keel
Which side is the nearest to us port or starboard?
10
Hull
Can you see
• Bow
• Stern
• Rudder
• Deck? Deck
Bow
Stern
Rudder
11
Port or starboard?
Port
Starboard
Starboard
Port
12
Measuring the hull
Freeboard
Draught
Waterline
Beam
13
Measuring the hull
5m
6m
Waterline
Draught = 6 m
16 m
Beam =
16 m
Freeboard = 5 m
14
Above deck
Mast
Funnel
Superstructure
15
Propulsion
Wheel cover
Sponson
Paddle wheel
16
Name the parts
Mast
Can you
see
• Mast
• Funnel
• Bow
• Stern?
Funnel
Bow
Stern
17
Name the parts
Can you
see
• Paddle
wheel
• Wheel
cover
• Sponson
Wheel cover
Sponson
Paddle wheel
18
19
Funnel
Superstructure
Stern
Mast
Rudder
Wheel cover
Deck
Paddle wheel
Sponson
Hull
Bow
Keel
starboard
20
21
Freeboard
Waterline
Draught
Beam
22
Ship Builder Demo
• Making a side wheeler paddle steamer
–
–
–
–
Superstructure - offset
SuperstructureSection – trapezium
Mast – rake angle
Funnel – offset from centre line
• Making the dynamic model
• Exporting the dynamic model
23
Part 2
24
Adding a ship to a scenario
25
Adding a ship to a scenario
• Running Scenario Builder
– demo scenario Liverpool Scenario 1
• Using a scenario in another, new scenario.
Use scenario Liverpool Scenario 1.
• Adding a new ship to the scenario
– create simple paddle steamer XXX
– demo scenario Sailing XXX
Use scenario Liverpool Scenario 1.
XXX is a British ship.
At 06:00 XXX is at P.
At 06:18 XXX docks unassisted in Liverpool Docks at berth 26
Albert Dock 1.
Adding a ship to a scenario
• Running Scenario Builder
– demo scenario Liverpool Scenario 1
• Using a scenario in another, new scenario.
Use scenario Liverpool Scenario 1.
• Adding a new ship to the scenario
– create simple paddle steamer XXX
– demo scenario Sailing XXX
Use scenario Liverpool Scenario 1.
XXX is a British ship.
At 06:00 XXX is at P.
At 06:18 XXX docks unassisted in Liverpool Docks at berth 27
Albert Dock 1.
Adding a ship to a scenario
• Running Scenario Builder
– demo scenario Liverpool Scenario 1
• Using a scenario in another, new scenario.
Use scenario Liverpool Scenario 1.
• Adding a new ship to the scenario
– create simple paddle steamer XXX
– demo scenario Sailing XXX
Use scenario Liverpool Scenario 1.
XXX is a British ship.
At 06:00 XXX is at P.
At 06:18 XXX docks unassisted in Liverpool Docks at berth 28
Albert Dock 1.
The Liverpool Scenario
At 06:00 XXX is at P.
At 06:18 XXX docks unassisted
in Liverpool Docks at berth
Albert Dock 1.
29
Adding your ship to the scenario
Use scenario Liverpool Scenario 1.
XXX is a British ship.
At 06:00 XXX is at P.
At 06:18 XXX docks unassisted in
Liverpool Docks at berth Albert Dock 1.
How do we change this so we can see
your ship instead of XXX?
30
Adding your ship to the scenario
Use scenario Liverpool Scenario 1.
XXX is a British ship.
At 06:00 XXX is at P.
At 06:18 XXX docks unassisted in
Liverpool Docks at berth Albert Dock 1.
•Open ScenarioBuilder
•Select menu item File | Open Scenario
and open Sailing XXX in examples folder 31
Steering your own ship
Use scenario Liverpool Scenario 1.
XXX is a British ship.
At 06:00 XXX is at P.
XXX is manually controlled.
• Controls for your ship
• Demo
32
Steering your own ship
• knots (sea miles
per hour)
• 1 sea mile =
1.852 metres
• sometimes called
a nautical mile
33
Steering your own ship
• heading is
direction
measured in
degrees from the
north direction
34
Heading
North
Heading 000
Heading 090
Heading 180
Heading 270
35
Sailing towards Albert Dock from P
000
090
090
180
About 150
180
270
36
Sailing towards Irish Sea from P
000
000
090
270
About 330
180
270
37
Sailing towards Liverpool from Q
000
000
About 060
090
090
180
270
38
Sailing through the Liverpool
Scenario
• Try sailing your ship from P, then Q then R
39
Part 3
• Turning a ship
40
Turning a ship
• Ships, like cars, need a bit of room to turn
round
41
Turning a ship
• What shape is the path the ship follows?
42
Turning circle
43
Turning circle
Radius
• What features of the ship affect the size of
the circle?
44
Turning circle
Radius
• In Builder we first assume:
Radius = a * Length of ship
45
Turning circle
Radius
• In Builder we first assume:
Radius = a * Length of ship
• Neater to say
R=a*L
46
Turning circle
Radius
R=a*L
Try out different values of a for our ship.
47
Turning circle
Radius
• In Builder we next assume:
R=a*L+b*S
where S is the speed
48
Turning circle
Radius
• In Builder we next assume:
R=a*L+b*S
where S is the speed
Try out different values of b for our ship.
49
Turning circle
R=a*L+b*S
• This is an example of a mathematical
model
• We are using mathematical symbols to
represent the real world
• This kind of model is an equation
50