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Building ships on computers

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... Q then R Part 3 Turning a ship Turning a ship Ships, like cars, need a bit of room to turn round Turning a ship What shape is the path the ship follows? – PowerPoint PPT presentation

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Title: Building ships on computers


1
Building ships on computers
  • Brian Farrimond
  • Ella Pereira
  • Mark Anderson
  • (Edge Hill University)

2
Ship components
  • Hull
  • Above deck
  • Propulsion

3
Hull
4
Hull
5
Hull
6
Hull
Deck
Stern
Bow
Port
Starboard
Port is left Starboard is right side of the
ship side of the ship
7
Hull
Keel (ships backbone)
Rudder (to steer the ship)
8
Hull Keel
  • The backbone of the ship
  • First part of the ship to be made

Titanics keel
Port
Do you recognise the ship?
Starboard
Which is - port - starboard?
Bow end
9
Hull Frames
  • The ribs of the ship

Frames
Keel
10
Hull Frames
  • The ribs of the ship

Starboard
Frames
Keel
Which side is the nearest to us - port or
starboard?
11
Hull
  • Can you see
  • Bow
  • Stern
  • Rudder
  • Deck?

Bow
Deck
Stern
Rudder
12
Port or starboard?
Port
Starboard
Starboard
Port
13
Measuring the hull
Freeboard
Draught
Waterline
Beam
14
Measuring the hull
5 m
6 m
Waterline
Draught
6 m
16 m
Beam
16 m
Freeboard
5 m
15
Above deck
Mast
Funnel
Superstructure
16
Propulsion
Wheel cover
Paddle wheel
Sponson
17
Name the parts
Mast
  • Can you see
  • Mast
  • Funnel
  • Bow
  • Stern?

Funnel
Bow
Stern
18
Name the parts
  • Can you see
  • Paddle wheel
  • Wheel cover
  • Sponson

Wheel cover
Sponson
Paddle wheel
19
(No Transcript)
20
Funnel
Superstructure
Stern
Mast
Rudder
Wheel cover
Deck
Paddle wheel
Sponson
Hull
Bow
Keel
starboard
21
(No Transcript)
22
Freeboard
Waterline
Draught
Beam
23
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

24
Part 2
25
Adding a ship to a scenario
26
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 0600 XXX is at P.
  • At 0618 XXX docks unassisted in Liverpool Docks
    at berth Albert Dock 1.

27
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 0600 XXX is at P.
  • At 0618 XXX docks unassisted in Liverpool Docks
    at berth Albert Dock 1.

28
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 0600 XXX is at P.
  • At 0618 XXX docks unassisted in Liverpool Docks
    at berth Albert Dock 1.

29
The Liverpool Scenario
At 0600 XXX is at P. At 0618 XXX docks
unassisted in Liverpool Docks at berth Albert
Dock 1.
30
Adding your ship to the scenario
  • Use scenario Liverpool Scenario 1.
  • XXX is a British ship.
  • At 0600 XXX is at P.
  • At 0618 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?
31
Adding your ship to the scenario
  • Use scenario Liverpool Scenario 1.
  • XXX is a British ship.
  • At 0600 XXX is at P.
  • At 0618 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

32
Steering your own ship
  • Use scenario Liverpool Scenario 1.
  • XXX is a British ship.
  • At 0600 XXX is at P.
  • XXX is manually controlled.
  • Controls for your ship
  • Demo

33
Steering your own ship
  • knots (sea miles per hour)
  • 1 sea mile 1.852 metres
  • sometimes called a nautical mile

34
Steering your own ship
  • heading is direction measured in degrees from the
    north direction

35
Heading
North
36
Sailing towards Albert Dock from P
000
090
About 150
180
270
37
Sailing towards Irish Sea from P
000
090
About 330
180
270
38
Sailing towards Liverpool from Q
000
About 060
090
180
270
39
Sailing through the Liverpool Scenario
  • Try sailing your ship from P, then Q then R

40
Part 3
  • Turning a ship
  • Turning a ship

41
Turning a ship
  • Ships, like cars, need a bit of room to turn
    round

42
Turning a ship
  • What shape is the path the ship follows?

43
Turning circle
44
Turning circle
Radius
  • What features of the ship affect the size of the
    circle?

45
Turning circle
Radius
  • In Builder we first assume
  • Radius a Length of ship

46
Turning circle
Radius
  • In Builder we first assume
  • Radius a Length of ship
  • Neater to say
  • R a L

47
Turning circle
Radius
  • R a L

Try out different values of a for our ship.
48
Turning circle
Radius
  • In Builder we next assume
  • R a L b S
  • where S is the speed

49
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.

50
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
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