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1
ABB
Oy,
Mar
ine
& Tu
rboc
harg
ing,
200
8
Presentation
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
General Introductionon Azipod®
Isko Kuha
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
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2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Contents
General on Azipod
Design process
Shipyard installation
On technicalproperties
©AB
B O
y, M
arin
e &
Turb
ocha
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g, 2
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3
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
The definition
The Azipod (Azimuthing Podded Drive) is a podded electricmain propulsion and steering device driving a fixed pitch propeller (FPP) at a variable rpm.
The pod is azimuthing(steering around its vertical axis) infinitely by 360 degrees and is available for propeller power ratings of up to 25 MW each.
The Azipod propulsion system is optimized to preferentially use a pulling propeller(called a “tractor” type Azipod)
(Example of a 17.6 MWpassenger shippropulsion module)
©AB
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2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Azipod main types
Large AzipodPower up to 25MW
Passenger ferries & cruise vessels
Ice-going vessels
Low speed operation vessels, DP vessels
CRP-AzipodPower up to 25MW
Ocean-going cargo ships
Top speed operation vessels
Less manoeuvring in operation
Compact AzipodPower less than 5MW
Offshore vessels
Low propulsion power
Low speed operation
vessels, DP vessels
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
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2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Large Azipod, propeller power range and rpm
©AB
B O
y, M
arin
e &
Turb
ocha
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2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
1987 Original Azipod Idea1989 Prototype installation “Seili” 1 500 kW
1994 1st Icebreaker application “Röthelstein” 2 x 560 kW
1995 1st Cruise Vessel application, “Elation” 2 x 14 000 kW
1998 1st mounting block installation, 1st Azipod with fin, “Europa”.
1999 1st fixi-pod installation, “Voyager of the Seas”
2000 Compact Azipod introduction
1st Compact Azipod installation, 2001 Offshore supply vessel UT 745,
1st tacholess installation
2001 CRP Azipod introduction
Nov. 2008 4 200 000 cumulative Azipod operating hours
Azipod propulsion history
1993 Full size Large Azipod®: “Uikku”- 11,4 MW
©AB
B O
y, M
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Turb
ocha
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g, 2
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2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Propulsion Module
Steering Module
1 Hydraulic Power Unit (HPU)
1 Cooling Air Unit (CAU)
1 Slipring Unit (SRU)
2 Oil Treatment Units (OTU)
1 Gravity Tank (GTU)
1 Air Control Unit (ACU)
1 Azipod Interface Unit (AIU)
1 Local Backup Unit (LBU)
Azipod: 2 modules - 9 units
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
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2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Layout example - Azipod modules and units
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
008
9
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Contents
General on Azipod
Design process
Shipyard installation
On technicalproperties
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
008
10
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Getting started
The project-specific configuration of the Azipod deliverycan be easily initiated by the theory design office at the Shipyard (or by the Owners…).
Reference can be made to traditionalpropulsion and steeringsystem allocations.
Generally the Builder will needto have similar engineeringresources as for e.g. propulsionand fin stabilizer integration
©AB
B O
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Turb
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2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Customer integration of the Azipod delivery
1. Coordinating engineer(general purpose propulsion, steeringand outfitting)
2. Structural designer for the hullinterface (steel / scantlings’ engineer)
3. Power plant interfacer (generallypower electrical knowledge)
4. Machinery engineering/ commissioning control(Ship or mechanical engineer)
5. Automation coordinator (in charge for the ship automation interface)
6. Navigational / controls’ interface (Electronics or applied deck officer)
Several of the listed tasks may be run by the same person:
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
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12
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Azipod layout: dimensions and tilt angle
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
008
13
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Azipod layout: mounting angle
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
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14
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Slip Ring Unit(SRU)
(Pumpsand sensors)
x n
AIUBox
Fans:
x2
CoolingAir Unit(CAU)
Commandsand info
SteeringGear
Alarms(on theHPU)
Controlled power supplies
Ship
yard
AB
B
PropellerControl Unit
Ship’sMCC
Ship’sMAS
MCC status info
(Group alarm)
Azipod interface to ship automation and starters
©AB
B O
y, M
arin
e &
Turb
ocha
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15
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
0 3030
6060
9090
120 120
150 150180
STBDPORT
( Example of STARBOARD turn )
”Ahead”goingship
configuration
Steering angle convention ”Ahead Going”
©AB
B O
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arin
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Turb
ocha
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2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
180 150150
120120
9090
60 60
30 300 STBDPORT
”Astern”goingship
configuration
( Example of STARBOARD turn )
Steering angle convention ”Astern Going”
©AB
B O
y, M
arin
e &
Turb
ocha
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2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Steering gear system layout
Separation ValveSV
Port STBD
M1Pump 2
Servo 2
M3M4M2Pump 1
Servo 1
Functionalhydraulicpiping:
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B O
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ocha
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2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Azimuth control 1/2
Propulsion is regulated bya 4…20 mA current signalinto the Application Controller:
4 mA = Full Astern12 mA = Zero20 mA = Full Ahead
Steering is performed withan unlimited 360 degreecontrollability ona twin signal (see next slide)
©AB
B O
y, M
arin
e &
Turb
ocha
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19
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
- 10 VAux.
Supply
+ 10 VAux.
Supply
Sine
Cosine
Port Stbd
TrigonometricRotation
Amidships0 V Signal ground
Portsector
Starboardsector
180 degrees0 V Signal ground
The standard control signal for steering is carried together by two trigonometric (non-linear)DC voltage signals in the samerelative galvanic potential.
These two signals are geometricallyset up at 90 degrees from each other.
The -10 V…0…+10V Sine signalfor the steering angle.0 VDC is for Amidships,and for 180 degrees.
The -10 V…0…+10V Cosine signalfor the steering angle. +10 VDC is for Amidships and -10 VDCfor 180 degrees of steering angle.
Azimuth control 2/2
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
008
20
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Contents
General on Azipod
Design process
Shipyard installation
On technicalproperties
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
008
21
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Azipod installation
Shipyard interface for the Steering Module
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
008
22
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Azipod installation
Steering Module
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
008
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2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Azipod installation
Steering Module being lowered into place
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
008
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2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Azipod installation
Slip Ring Unit(SRU)
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
008
25
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Azipod installation
Azipod roomoverview with theCooling Air Unit(CAU)already fitted
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
008
26
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Azipod installation
Propulsion Modules being installed
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
008
27
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Content
General on Azipod
Design process
Shipyard installation
On technicalproperties
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
008
28
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Steering with Azipod
The Rudder:progressive around Midships
The Azipod:linear around Midships
Sufficient lateral area (dead wood)to be secured at aft ship.
©AB
B O
y, M
arin
e &
Turb
ocha
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g, 2
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29
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Side force comparison: rudder vs. Azipod
Azipod will give thrustto any direction
as requiredby the operator
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
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2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
Different operational states of ship handling
Open SeaTransit
Channelling Manoeuvring
The efficient operational routines runby the OOW should take into accountthe following important aspects:
1. Understanding the full potentialof Azipod ship handling capabilities
2. Defined interfaces to external systems(autopilot, bow thrusters, chart displays)
3. Proper transition fromone operational stateto another
©AB
B O
y, M
arin
e &
Turb
ocha
rgin
g, 2
008
31
2008-11-21 VMH Isko Kuha
ABB Oy, Marine & Turbocharging
5° steering angle 25° steering angle
Azipod
Azipod
Rudder
Rudder
Comparison of turning circles