marcel pera, senior project manager · pdf fileocean transportation –nominated vessel...
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MARCEL PERA, SENIOR PROJECT MANAGER
BREAKBULK HOUSTON 2014
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OCEAN TRANSPORTATION - INTRODUCTION
BigLift Shipping
- World leader in heavy lift shipping
- Established in 1973
- Lifting capacity up to 1800 mton
- Focus on quality and technical
solutions
- Member of the Spliethoff group
- 15 specialized heavy lift vessels
Happy Sky (2 * 900 mton)
Cargo: knocked-down overhead crane
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HAPPY R-TYPE
2 * 400 mton
Open hatch sailing
Cargo: offshore equipment
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OCEAN TRANSPORTATION – HAPPY BUCCANEER
2 * 700 mton
Fly jib (SWL max. 700 mton)
Cargo: wharf modules
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OCEAN TRANSPORTATION – CARGO DETAILS
• 6 brand new Coke Drums
• Each 30,2*8,4*8,9 meter – 250 mton
• Port of Loading: Aviles – Spain
• Port of Discharge: LA – USA
• Time of shipment: December 2012
• Contract partner: IDESA (Spanish
manufacturer)
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OCEAN TRANSPORTATION – NOMINATED VESSEL
Happy Dynamic
• Built: 2011
• Length: 157 meter (515 ft)
• Beam: 25,6 meter (84 ft)
• 2 cranes, each 400 mton SWL
• 1 crane, 120 mton SWL
• Fully equipped with lifting and lashing materials
• Large lifting height
• Large stability (a stability pontoon is not
necessary)
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OCEAN TRANSPORTATION – CHEVRON
Additional Chevron requirements (outside
and above contractual agreements with
Idesa).
Main topics
• Vessel and office audit
• Inmarsat tracking 24/7
• Limited acceleration forces
• 25% contingency added to theoretical
weight of cargo (crane capacity and
deck stress)
• Marine Warranty Surveyor Idesa
• Marine Warranty Surveyor Chevron
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OCEAN TRANSPORTATION – LIFTING
Original rigging position Adjusted rigging position
Due to an incorrect Centre of Gravity the location of rigging had to be adjusted
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OCEAN TRANSPORTATION – STOWAGE
Hold:
1 coke drum and transit cargo
Deck:
5 coke drums
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OCEAN TRANSPORTATION – SEA FASTENING
Longitudinal / Vertical sea fastening by
certified BigLift wire system
Transverse sea fastening by shear plates
(T-stopper)
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OCEAN TRANSPORTATION – SHIP MOTIONS
Happy Dynamic is equipped with Octopus system
• Measuring actual acceleration values
• Predicting future acceleration values
• Captain decision support system
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OCEAN TRANSPORTATION – SHIP MOTIONS
Z-accelerations:
Combination of heave and
vertical component of the pitch
acceleration.
Results in vertical forces
(uplift/downforce) between
ship and cargo.
X-accelerations:
Mainly due to surge motions
of the vessel.
Y-accelerations:
Combinations of the sway and
the horizontal component of
the roll-acceleration.
Results in longitudinal and
transversal force interaction
between ship and cargo.
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OCEAN TRANSPORTATION – SHIP MOTIONS
Departure Aviles delayed due to
- Weather forecast
- Spanish custom offices closed around X-mas
- Confusion on instructions/advise from MWS
Chevron
criteria
Idesa design
criteria
DNV
(BigLift)
X 0,35 0,3 0,24
Y 0,65 0,5 0,32
Z 0,5 1,0 0,29
Maximum allowable accelerations (m/sec2)
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OCEAN TRANSPORTATION – X-ACCELERATIONS
X-Accelerations on cargo due to
surge motions of the vessel.
X-accelerations for both cargo items nearly
equal. (mainly linear
surge motion)
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OCEAN TRANSPORTATION – Y-ACCELERATIONS
Y-Accelerations on cargo due to sway
and rolling motions of the vessel.
Values according to DNV calculations.
Peak in y-accelerations due to heavy rolling
motions near Panama.
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OCEAN TRANSPORTATION – Z-ACCELERATIONS
Z-Accelerations on cargo due to heave
and pitch motions of the vessel.
Values according to DNV calculations.
Peak in Z-accelerations just after departure in Aviles.
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HAPPY DYNAMIC - COKE DRUMS (AVILES to L.A.)