Safe Anchoring Mooring
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Transcript of Safe Anchoring Mooring
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SAFE ANCHORING & MOORING
MACGREGOR deck machinery by PUSNES and HA
June 2015Nils Jrgen Walle & Steinar Eliassen
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Cargotec Corporation
Marine Load Handl
Terminal
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MacGregor in brief
MacGregor is the one of the world's leading brands on
engineering solutions and services for handling marinecargoes and offshore loads
MacGregor products serve the maritime transportation,
offshore and naval logistics markets, in ports and
terminals as well as on board ships and rigs
Revenue 2014: EUR 1,034 million
Approximately 2 700 employees
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MacGregor solutions
Hatch covers,container lashings
CranesRoRo access
equipmentPort and terminal
solutionsMarine
selfunloaders
Marine loadingarms
Deck machinery Steering gear Mooring SystemsOffloadingsystems
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MacGregors journey with key milestones until toda
2005
MacGregor acquired
All Set Lashings
1937
MacGregor & Company formed
1957 Navire company formed
1983
MacGregor merged with
Navire to form
MacGREGOR-Navire and
became part of Kone
1993 Incentive acquired
MacGREGOR-Navire.
Hgglunds Marine andMacGREGOR-Navire
were combined to form the
MacGREGOR Group
2005
Kone acquiredMacGregor
International AB
Kone demerged and
Cargotec was listed
1969 Navire Cargo
Gear AB formed
200
Plim
Hyd
acq
ente
bus
1998
Industri Kapital acquired
the majority of the
MacGREGOR Group
shares from Incentive
1992 MacGREGOR-
Navire acquired
Conver-OSR
(*) Pusnes/P
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MacGregor organisation
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Auxiliary and Machinery Systems
AMS Norway (Pusnes/Porsgrunn)
AMS Germany (Hatlapa)
Revenue 2014: ~EUR 80 million / ~350 shipset
~110 employees (excluding workshop in Germany)
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AMS Norway,
Arendal
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Auxiliary and Machinery Systems
Deck machinery
Hydraulic low pressure drive
Hydraulic high pressure drive
Electric pole change drive
Electric frequency control (VFD) drive
Steering gear
Piston type
Ram type
Rotary vane type
Compressors
Water-cooled
Air-cooled
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MacGregor Auxiliary & Machinery Systems supplies Hatlapa, Porsgrunn and Pusnes b
machinery, steering gears and compressors
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HATLAPA & PUSNES
branded deck machinery
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Our history
Pusnes was established in 1875
Pusnes delivered its first steam driven winch in 1891
Hatlapa was established in 1919
From the 1950s we delivered the first electric DC winches
From the 1960s we delivered the first electric AC winches with multi-speed motors
From the 1970s we delivered the first hydraulic winches based on ring main system
From the 2000s we delivered the first electric AC frequency controlled (VFD) winch
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Product range
MacGregor offers Hatlapa and Pusnes
branded deck machinery for all kinds ofmerchant and offshore vessels from about
5.000 DWT and up
Windlasses suitable for chain sizes 34
mm up to 142 mm (Grade 3)
Mooring winches with a nominal pull from
5 tons up to 40 tons
Capstans with a nominal pull from 2 tons
and up to 15 tons
Chain stoppers suitable for our whole
windlass range
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Our segments
Products based on size Bulkers Container Tankers LPG LNG PCCRo-Pax/
Cruise
AMW: 58-81 mm K3 chain
MW: 125-160 kN pull
15-84k
DWT
1-4.000
TEU
15-75k
DWT
22-35k
CBM- -
30-50k
GT
AMW: 84-100 mm K3 chain
MW: 160-250 kN pull
84-150k
DWT
4-7.000
TEU
75-150k
DWT
64-84k
CBM-
~5-8000
Units
50-100k
GT
AMW: 102-142 mm K3 chainMW: 250-350 kN pull
150-400kDWT
7-21.000TEU
150-400kDWT
- 145-250kCBM
- 100-200kGT
Hydraulic and electric drives available for all sizes.
Note that electric systems on tankers/gas carriers may require EX-certified systems.
Electric drives may be recommended for vessels operating in arctic conditions.
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Purpose of deck machinery
1. Anchor the vessel safely at sea
2. Mooring of the vessel along the quay side
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Typical deck arrangement on an Aframax/Suezmax
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Design
Our products are designed in Germany (Uetersen) and Norway (Arendal and Porsg
Equipment design and documentation is based on the following standards unless orequired in the customer Purchase Order Specification (POS):
ISO3730ShipbuildingMooring winches
ISO4568ShipbuildingSea-going vesselsWindlasses and anchor capstans
ISO6482ShipbuildingDeck machineryWarping end profiles
ISO7825ShipbuildingGeneral requirements
IACS UR S27
IACS Common Structural Rules (CSR) for Tankers (if applicable)
OCIMF Mooring Equipment Guidelines rev.3 (MEG3) (if applicable)
Applied classification society
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New rules or regulations?
Macgregor does not know of any specific rule change in the nearest future with reg
machinery
We are monitoring the following issues closely:
Deep anchoring regulations (LR and ABS has already rules handling this issue)
OCIMF MEG 4
New Panama canal regulations
More strict environmental regulations (we have already the EAL requirements fo
Further development of the rules with regard to Winterization
DNV GL common rules
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Safe anchoring
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Why are the anchors lost?
Vessel anchoring too deepFrom the rules we see that by
anchoring much deeper than 100 m it is a great risk that thewindlass will not be able to retrieve the chain and anchor
Vessel anchoring in very rough weather conditionsThe
windlass is designed for operating at a speed of about 9 m/min
which corresponds to 0,15 m/s. With heavy swells or waves the
vessel can be subjected to accelerations above 1 m/s. If the anchor
is still stuck to the bottom the windlass motor will be overloaded andcrushed
Vessel is drifting during anchoring operationsIf the vessel is
moving with a speed over ground greater than 9 m/min or 0,3 knots
while the anchor is still stuck to bottom the windlass motor will be
overloaded and crushed
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Windlass design criteria
The class rules are based on anchoring in sheltered areas protected from the open
Basic design criteria
Nominal anchoring depth 82,5 m
Wind 25 m/s (~50 knots)
Current 2,5 m/s (~5 knots)
Waves and swell are not
considered!
IS THIS REAL LIFE?
This is what your windlass is designed for!
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design criteria (cont.)
Windlass nominal lifting force based on Grade 3 anchor chain is given through the
F = 47,5 x dc2 [N](dc = chain diameter in mm)
Nominal lifting force is sufficient to lift a free hanging anchor from a depth of 82,5 m
Mean speed between 82,5 m and 27,5 m shall be 9 m/min (0,3 knots)
The winch motor should be able to operate at nominal lifting force continuously for minutes
In order to break out the anchor the maximum lifting force shall be 150% of nomina
The winch motor should be able to hold this load for minimum 2 minutes.
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Too high tension in chain.
Heave up position.No tension in chain.
Break out an embeddedanchor with vessels main
engine and the chain lockedin the chain stopper.
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Why are the anchors lost?Critical Maintenance
The windlass brake is not able to stop the rendering chain during anchoring operati
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Check the windlass brake adjustmentand wear of brake lining!
Correct Critical
Set indicator to marking(Hydraulic brake only)
always to be more than 0 degree
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Why are the anchors lost?Critical maintenance
The windlass driving shaft bearings are overheated due to poor lubrication
The windlass gears are highly loaded due to poor lubrication
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Do you know the anchoring grounds?
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Type of Anchor
Holding power
Shingle /Sand
Rock withLayer of Mud
and SandSoft Mud Blue C
Standard Stockless 3,5 1,8 1,7 3 to
High Holding Power
HHP8 2,4 6 10
Anchor weight to be multiplied with actual factor in the table
achieve anchor holding power.
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To obtain a sufficient holding power, the recommended anchoring scope to be betw
Normally the chain length onboard is max 14 shackles = 27,5 x 14 = 385 m
Max paid out length will be about 370 m which gives following water depths:
Scope 6 = 370/6 = 62 m
Scope 10 = 370/10 = 37 m
Scope 3 = 370/3 = 123 m
Anchor holding power
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Require windlasses with higher design criteria?Stronger windlasses with higher c
reduce number of lost anchor incidents
BUT
A better understanding of current design limitations, maintenance issues and opera
reduce number of lost anchor incidents as this will:
prevent anchoring at too deep water depths or poor anchoring grounds
make sure the vessel has no speed over ground during the anchoring operation get the master to decide to leave the anchoring place before the weather gets to
make sure that the windlass brakes are correctly adjusted
make sure that the windlass bearings and gears are properly lubricated
Solution?
June 2015 Slide 27
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Safe mooring
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Design criteria
Mooring winch selection
Based on OCIMF the correct method for selecting capacity of mooring winch shofollowing;
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Mooring force calculation acc.
to rules
Required MBL of mooring rope
Selection of design ropeaccording to OCIMF Table 7.1
Result is size of mooring winch
Example:
The mooring force calcu
a required MBL = 750 k
mooring line.
According to OCIMF Ta
closest design wire ropeabove this value is 36
with MBL of 817 kN.
This design wire rope g
mooring winch with 200pull and a design BHC o
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OCIMF MEG 3 Table 7.1
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Winch brakes
The drum brake should in operation be capable of holding between 60-80% of rope
HOW?
By using a spring-applied brake with brake setting indication
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What is MACGREGORdoing to improve
operation and
maintenance?
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Windlass
Windlass brake drum is supplied with stainless steel surface (SUS316)
Windlass brake links are supplied with stainless steel bolts
in stainless steel bushings -> maintenance free
Brake screws of stainless steel
Windlass driving shaft bushings of split type in split housing -> easy maintenance
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Mooring winch
Mooring brake drum of stainless steel rim (SUS304)
Mooring winch brake links are supplied with stainless steel bolts
in stainless steel bushings -> maintenance free
Brake screws of stainless steel
Mooring winch gearbox of horizontally split type
Mooring winch main shaft bearing bracket bushings of split type in
split housing -> easy maintenance
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Standardized product range
June 2015Slide
35
Split bush
bearings
SUS brake spindle &
SUS bolts/bushings
Pla
be
Spherical roller
bearings
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Others
Winch motors of low-speed/high-torque type (mostly STAFFA)
Winch motor control valve block machined as one unit -> compact and
easy maintenance
All bolts/nuts of M10 and below in stainless steel
All pipe fittings and internal piping of stainless steel
All major components are supplied from well-known European suppliers
-> easy and fast access to spare parts
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Safe Chain Stopper (SCS)PATENTED
To increase the safety for vessels when heaving anchor,
Pusnes has developed a new chain stopper which ispatented. safe chain stop
This stopper will arrest the chain if the windlass starts to
render, i.e. when the pulling force in chain is bigger than
the pulling force of
the windlass.
Designed for chain diameters from 60 mm and upwards.
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Pusnes Quick Guide (in English, Chinese, Portuguese, Ru
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Contracting a new
vessel?
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Wh t t i l d i hi d ifi ti (POS)
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What to include in shipyard specification (POS)
DOs
Stainless steel brake surface on the windlass (SUS316) Stainless steel brake rim on the mooring drum (SUS304)
Hydraulically operated band brake on the windlass?We recommend it!
Hydraulically operated clutch on the windlass to force the anchor winch motor in
speed/high-torque setting
Specify that the supplier shall have their own world-wide service network with de
engineers
DONTs
HPUs with stand-by pumps, or increased simultaneous operationCosts a lot o
gives little actual benefit. Spend the money on better things.
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Global Lifecycle
SupportSupporting MacGregor equipment throughits whole life cycle
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M G Gl b l Lif l S t L ti
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MacGregor Global Lifecycle Support - Locations
June 2015 42
MacGregor life cycle support for ships ports and t
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MacGregor life cycle support for ships, ports and t
Maintenance and damage repairs
MacGregor Onboard Care (MOC)service contracts
Spare parts
Inspections
Installations
Training for crew and personnel
Modernisations and conversions
Drydockings
24/7 support
Consultancy, commissioning and
warranty handling services
For this equipm
Hatch covers
Cargo cranes RoRo access equipment
Port and terminal equipment
Lashing bridges and lashing
Self-unloading, transloading
bulk handling systems
Deck machinery, compressosteering gears
This is what we offer
June 2015 43
MacGregor life cycle support for offshore industry
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MacGregor life cycle support for offshore industry
Maintenance and damage repairs
MacGregor Onboard Care (MOC)service contracts
Spare parts and logistics
Inspections
Installations
Training for crew and personnel
Modernisations and conversions
Hydro checks, function testing and adjustments
Rental service
OnWatch service
24/7 support
For this equipm
Subsea load handling system
Deck handling equipment Anchor handling, towing and
mooring systems
Offshore loading systems
Offshore mooring systems
This is what we offer
June 2015 44
MacGregor Onboard Care (MOC) contracts
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MacGregor Onboard Care (MOC) contracts
June 2015 45
Availability
support
Onboard
maintenance
Spare
manag
Worldwide serv
Optimum equipm
availability
MacGregor Onboard Care is a service contractconcept where MacGregor assumes defined
responsibility for the maintenance of thecustomer's cargo handling equipment
MOC concept has four main elementsAvailability support, Onboard maintenance,Spare part management and Customer training- with specific sales modules under eachelement
MOC contract is tailor-made to the customersrequirements from the standard MOC modulesunder each of the four elements
So why MacGregor Hatlapa / Pusnes / Porsgrunn b
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So, why MacGregor Hatlapa / Pusnes / Porsgrunn b
deck machinery, steering gear and compressors?
General
European design Long experience
Dedication to quality
Well proven and flexible solutions
Close contact with all major class
24/7 world-wide technical support
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Our questions to you?
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We need your guidelines on the following
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We need your guidelines on the following
SPM operations
How is it done?Split drums / Non-split drums needed? Will the SPM rope be spooled on top of the mooring rope or will the mooring rop
Have you experienced any problems with SPM operation?
Panama Canal operations
How is it done?You use the warping ends to hawl in the mooring rope from the
Or do you use the mooring drums?
Have you experienced any problems with Panama Canal operation?
ANY DEVELOPMENT YOU NEED OR EXPECT FROM US?
If you have a specific need in order to improve operation, safety or maintenance
happy to discuss this further with you at any time
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