Ocean Giant
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- A Helping Hand In Stralsund Maritime Reporter, Oct 2000 #43
In Stralsund, an ocean-going giant takes to the water with the help of a record-breaking lift.
The Stralsund ship lift reportedly breaks all records, as nowhere in the world is there a lifting and lowering facility on a larger scale than this 754 x 115 ft. (230 m x 35 m) lift. Equally impressive is its power, which enables it to raise and lower a ship of up to 20,700 tons to a maximum of 36 ft. (11m) without difficulty, the Maersk Valencia in December 1999, serving as an example.
The bow of the oceangoing giant peers out of the 36 ft. (75 m) high shipyard bay, its steel hull follows: the Maersk Valencia, a 682 ft. (208 m) containership, edges slowly forward. On 432 wheels, a strange vehicle trundles along the rails like a steel centipede, at two meters a minute. It takes just three hours for the train to make its 280 m journey after which it stands on the largest ship lift in the world, waiting to be immersed.
The men in the 20-person shift routinely carry out the final tasks. Working with the ground crew, they make bow and stern fast starboard and port. The ship will be held vertical by four steel cables once it is afloat. And making sure that gets back into the water in two hour's time are the project leader and two employees of Hydraudyne Systems & Engineering (S&E), Rexroth's Dutch subsidiary. The company built the lift and is therefore responsible for the computer- controlled lowering.
To release the ship, the lift rises four centimeters to disengage the 204 twistlocks.
A few minutes later it goes down at a speed of 15 cm a minute. This time there are 12,800 tons on the lift and the transfer system, which must be immersed using the power supplied by its 100 electric servomotors, weighs 900 tons. Incidentally, the ocean giant's "taxi" consists of 54 bilge block bearers (steel girders), the chassis, 108 hydraulic motors and the HGV-size hydraulic supply unit. "As clumsy as it all looks", explained shipyard head Detlef Grigo, "this co-operative project between the Norwegian Rexroth and Hydraudyne S&E is the most modern transfer system in the world." With this mass of metal it is amazing how silently the electric servomotors, 50 on the right and 50 on the left of the dock, work.
"They are essentially modern differential pulley blocks," says engineer Hans Hozeman, the Hydraudyne manager in charge. The platform is put into operation by 100 electric servomotors (Rexroth Indramat), five-stage planetary gearing (Lohmann + Stolterfoht) and a cable pull system with winch drums and headwheels. The steel rope runs over the massive winches that are standing on firm ground close to the platform, on the left and the right. "With this technology we can control to an accuracy of one tenth of a millimeter," explains Hozeman.
Synchronization is Vital The precision of the Hydraudyne S&E system becomes obvious as the Baltic flows evenly and silently over the platform.
A synchronized performance, because all the ship lift data and control parameters are continuously reported during immersion and converted into signals by the central computer, to ensure that the lift is lowered smoothly and evenly.
"All winch signals are converted into light signals and then fed into the control center. Control PCs process this information. The result becomes visible," comments Hozeman on the synchronization efficiency. If sensors or even a motor should fail, the system switches off immediately.
The lift stops at a depth of 2.5 meters for the scheduled leak test. The integrity of hoses and seals is checked. The sink-down recommences after half-an-hour, until the ship is afloat.
The so-called "swimming out" is handled by a tug. It pulls the ocean giant slowly out of the dock. Two special HGVs on the right and left of the lift shaft move forward with the ship at the same speed. They hold under tension the two steel cables made fast on the stern. This prevents movement of the 12,800-ton vessel.
An electronic eye at the center of the stern monitors the balancing act. The ship has scarcely reached open water before three tugs tow it to the quay. The "steamer's" superstructures will be completed there and after a total of three months' construction (commencement of assembly of the ship's hull) the ship is ready for the vast freedom of the ocean.
Since it was established on June 15, 1948 almost 1,600 ships have left the shipyard in Stralsund, and currently five or six new ones are built each year. In 1990 the company added ferries, dredgers, containerships and special-purpose vessels to its fishing trawler product range. In the middle of 1997 Hydraudyne S&E completed the Stralsund ship lift in 20 months. The company was certified to DIN ISO 9001 in 1999. The shipbuilding assembly bay was erected in 1997/98. At 98 x 354 x 243 ft. (300 x 108 x 74 m) — it is one of the largest in the world.
Last year it received the "European Structural Steel Award 1999" from the European Structural Steel Convention.
Volkswerft Stralsund currently has 1,200 employees and its order books are full until 2001. A (230 m) ship will take to the water for the first time in Stralsund during mid-2001.
Circle 105 on Reader Service Card
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- Siemens: Gigantic Gear Unit Technology Maritime Reporter, Aug 2013 #64
. Low-Vibration Gearbox Tech Daewoo Shipbuilding & Marine (DSME) shipyard built a gigantic ferry that put everything built to date in the shade. This ocean giant (DSME newbuild number 7511, dubbed Hannibal), which can carry 3,200 passengers accommodated in first-class cabins and 1,060 vehicles, was built
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May 2024 - Maritime Reporter and Engineering News page: 59Slidecoaster, the world's ? rst hybrid roller coaster and water slide, the Glow Court, a new digital sports complex with an interactive LED ? oor, and Ocean Boulevard, the larg- Photo courtesy Fincantieri est 360-degree outdoor promenade ever made by NCL. www.marinelink.com 59 MR #5 (50-60).indd 59
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May 2024 - Maritime Reporter and Engineering News page: 49security cooperation exercises. cargo and taking on retrograde materials. The Navy’s expeditionary sea bases (ESBs) provide a sea- MSC-chartered MV Ocean Giant performed the Operation going platform from which logistics, special operations and Pacer Goose mission to Pituf? k Space Base — which is the
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May 2024 - Maritime Reporter and Engineering News page: 48MILESTONE in the exo-atmosphere to charting the bottom of the ocean; and tion Service in 1947, which then became part of MSTS. After 14 “service support” ships serve as hospital ships, salvage ships, being laid up at the Maritime Reserve Fleet at James River, Vir- ocean-going tugs, command-and-control
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May 2024 - Maritime Reporter and Engineering News page: 47tanks, trucks, unique service of the crews and ships that have ammunition, and foodstuffs to cover every square foot of 681 T sailed in every ocean football ? elds. Unit equipment sealifted to the United States While the Navy had specialized ships for logistics before Central Command (USCENTCOM)
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May 2024 - Maritime Reporter and Engineering News page: 26the evolving industry, study on the building of an ammonia bunker tanker, together driven by environmental concerns. “Our top three priorities with Pax Ocean and BV. this year are decarbonization, digitalization and workforce de- Part of the investment in the future transcends technology velopment and
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May 2024 - Maritime Reporter and Engineering News page: 22transfer of fuel. Polymetallic Nodule are mostly found on the vast, deep • Transport and accommodation of personnel (likely abyssal plains of the global ocean. In most instances, nodule between 10 and 30 per transfer, depending upon rotas, ? elds are located at great distances from land; ranging from
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May 2024 - Maritime Reporter and Engineering News page: 21. It is hoped that the new Interna- tional Subsea Minerals Academy (ISMA) based at the Texas • Dry Transfer: Nodules are transferred via Laboratory for Ocean Engineering might take on developing cargo conveyor. this new and needed standard. Pros: • Simpler, as dewatering occurs on the PSV and Nodule
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May 2024 - Maritime Reporter and Engineering News page: 19bulk ore carriers and standard procedures, While it might seem feasible to simply modify a stan- the nuances and practical limits of operating in the deep ocean dard bulk carrier for this purpose, this type of shuttle trans- mean that this step becomes increasingly complex and chal- porter requires signi?
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May 2024 - Maritime Reporter and Engineering News page: 12Building the Next-Gen Maritime Prepositioning Ship & Auxiliary Crane Ship By Jerit VanAuker, Taluga Group, Military Sealift Command M M M M/ M V Ocean Jazz can be c con? gured to carry containers, v vehicles and even aircraft, i including this Apache helicopter Haw w ii Haw w wa Haw wa Hawa Hawa
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May 2024 - Maritime Reporter and Engineering News page: 11and complex but satisfying careers. vert the diesel to methanol. In other words, the system should Have you heard the buzz about our new solution? Trust-Ocean! MonitorReport Verify Comply Meet our experts at Posidonia. Hall 3, stand 111 www.chris-marine.com MR #5 (1-17).indd 11 5/3/2024 9:49:15 A
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April 2024 - Maritime Reporter and Engineering News page: 28salvage ships; two submarine tenders; and the Sixth Fleet ? agship, USS Mount Whit- ney, that has a combined civil service and military crew. Our two ocean going tugs are going to be part of a 10-ship class. We have a special warfare support ship; two high-speed transports; and the high-speed expeditionary
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April 2024 - Maritime Reporter and Engineering News page: 27Howard O. Lorenzen (T-AGM 25) monitors mis- need mariners, too, and so does the rest of the maritime indus- sile launches and collects data. We have six ocean surveillance try. We’re certainly in a situation where we want to maintain ships. Five of them are catamarans that conduct long-range sur- positive
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April 2024 - Maritime Reporter and Engineering News page: 14transmitting acoustic energy over all the pos- and reasonable from an overall systems viewpoint. Above all sible structural and airborne paths into the ocean. The hydro- they must be unambiguous, clearly de? ning acoustic limits acoustic design of the propulsor is a major factor because once and compliance
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March 2024 - Marine Technology Reporter page: 48Subsea . . . . . . . . . . . . . . . . . . . .www.blueprintsubsea.com . . . . . . . . . . . . . . . . . . . . . .+44 (0) 1539 531536 5 . . . . . .Deep Ocean Engineering, Inc. . . . . . . . . . . . .www.deepocean.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(408) 436-1102 33 . . . . .Detyens
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March 2024 - Marine Technology Reporter page: 45to acquire Valeport a leader in the design and manufacture of underwater sensors and pro? l- ers. Valeport is one of the UK’s leading manufacturers of oceanographic and hydrographic instrumentation. The in- dependent family-owned business, which was established in 1969, designs and manufactures instrumentation
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March 2024 - Marine Technology Reporter page: 44NEW TECH OCEANOLOGY INTERNATIONAL 2024 Image courtesy Metron/Cellula Teledyne Marine acquires Valeport: Matt Quartley, MD, Valeport and Ole Søe-Pedersen, VP & Image courtesy Teledyne Marine GM Teledyne Marine announce the deal in London. Pictured (L-R): Cellula Robotics, President, Eric Jackson, Metron
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March 2024 - Marine Technology Reporter page: 432 Sub-Bottom Pro- Kongsberg Discovery debuts a new analysis tool developed ? ler, which is a new generation of GeoAcoustics sub-bottom with Cathx Ocean that it says ‘radically’ reduces the time and pro? ling technology, reaching into deeper waters for the ac- effort required to detect and classify
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March 2024 - Marine Technology Reporter page: 42NEW TECH OCEANOLOGY INTERNATIONAL 2024 Image courtesy Greg Trauthwein Image courtesy BIRNS MacArtney launches the new ultra-compact ø12.7 mm SubConn Nano connector. Innovative connectivity built on 45 years of ? eld-proven and market-trusted design. Image courtesy MacArtney Birns celebrated its 70th
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March 2024 - Marine Technology Reporter page: 41initial series of Quadroin prototypes, developed in col- laboration with Hereon for the Helmholtz Association’s MO- SES initiative, focuses on monitoring ocean eddies. These ve- hicles are equipped with sensors for collecting geo-referenced data on various physical water parameters, including tempera- ture
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March 2024 - Marine Technology Reporter page: 40NEW TECH OCEANOLOGY INTERNATIONAL 2024 All photos courtesy MTR unless otherwise noted NEW TECH, PARTNERSHIPS LAUNCH IN LONDON With Oceanology International now one month in the rear-view mirror, MTR takes a look at some of the interesting technologies launched before, during and after the London event.
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March 2024 - Marine Technology Reporter page: 39Photo courtesy Global Ocean Design Figure 7 A 35Ah AGM lead-acid battery is tested using the West Mountain Radio CBA to show the effect of simply ? lling the battery voids with mineral oil as a compensating ? uid. The CBA is programmed to cut-off at a voltage of 10.50v. The top line (red) shows the
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March 2024 - Marine Technology Reporter page: 36capacity as they ap- their air weight; and 2) it is easier to exchange batteries on a proach 0°C depending on current drain. Lead acid batteries small ocean lander or AUV by unplugging the spent exterior can provide substantially higher capacities when discharged battery packs and plugging in the replacement
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March 2024 - Marine Technology Reporter page: 34LANDER LAB #10 BATTERY PACKS, CHARGING, AND CAPACITY TESTING Photo Credit: Hanumant Singh / Woods Hole Oceanographic Institution. By Kevin Hardy, Global Ocean Design LLC n ocean lander has many strengths including that produces the current is irreversible. Examples include ? exibility of deployment
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March 2024 - Marine Technology Reporter page: 32system trials, TMC subsidiary exploration of the Clarion Clipperton NORI uplifted 3,000 tons of nodules from depths of four km and Zone of the Paci? c Ocean. transferred them to the hold of the Hidden Gem. All images this page courtesy of TMC Engineers attach ? oat sections to the ? exible jumper hose