innovation award
Dual draglink crane will make offshore lifts easier
annual conference & awards Winner Innovation of the Year
In recent years, tremendous effort has gone into making load handling and lifting from offshore vessels safer, more effective and efficient – objectives which are among those driving the development of a lifting concept from Rolls-Royce
T
he Offshore Support Journal Innovation of the Year Award, which was sponsored by Nor-Shipping this year, is awarded to an innovative product, system or service which is considered to have made a significant impact on the design, build and/or operation of offshore support vessels.
The shortlist included:
• Aqua-Guard Spill Response for its RBS Triton oil skimming technology • Huisman for its offshore mast crane (OMC) for the pipelay/heavy-lift vessel Seven Borealis • Maersk Training for its MOSAIC training complex • Rolls-Royce for its active heave-compensated dual draglink crane. This year, the award was won by Rolls-
Royce Marine’s active heave-compensated dual draglink crane, the latest in a long line of products that Rolls-Royce has developed and put into service to make work on vessels such as anchor-handling tug/supply (AHTS) safer for deck crew. The same has been done for platform supply vessels (PSVs) that have to load and discharge cargo at rigs and platforms, often in rough sea conditions. This work continues, with a number of new systems under development or specified for vessels
Ottar Antonsen from Rolls-Royce Marine collects the award from Vidar Pederstad, of Nor- Shipping, the sponsor of the innovation award
currently under construction. With the acquisition of Odim and new
agreements with partners, Rolls-Royce has been able to rationalise and expand its marine crane activities. Rail-mounted cranes for supply vessels and anchor handlers are a feature of many vessels equipped by Rolls-Royce, with over a hundred now in service. They can be fitted with remote controlled manipulators to make anchor-handling operations involving chains and wires under high tension far safer for the deck crew.
More and more load-handling equipment
for offshore support vessels, from large subsea cranes to smaller cranes, winches and launch and recovery systems, are being designed to take advantage of active heave-compensation technology of the type that the Rolls-Royce product incorporates. In
the The crane concept was developed by Rolls-
Royce working closely with Huse Engineering in Norway. Huse Engineering is fully owned by IP Huse, and develops and markets products in collaboration with Rolls-Royce Marine, with whom it has worked for several years. The company focuses on providing the best lifting and handling solutions for the marine and offshore industries, and carries out concept evaluation and development, engineering design, fabrication and assembly, installation and commissioning.
active heave-compensated dual draglink crane, a special parallelogram linkage formed by the boom and two links allows the hook to be positioned anywhere in a much larger working envelope than on the alternative knuckleboom layout. Other advantages include increased lifting height, efficient vertical and horizontal load handling with good heave compensation. The crane itself has a low centre of gravity and is light for its power and capability.
26 I Annual Offshore Support Journal Conference and Awards 2013
It describes the new active heave- compensated dual draglink crane as providing “a significant increase in operational capability” due to the crane’s geometry and structure. “The dual draglink crane gives several advantages compared to traditional cranes: increased maximum safe working load working area; increased lifting range and height; lower weight and centre of gravity; and optimised horizontal load handling.”
The first ever dual draglink crane (which did
not have active heave compensation) was fitted to Farstad’s platform support vessel Far Solitaire. The first vessel to be equipped with a dual draglink crane with active heave compensation will be Olympic Shipping’s newbuilding at Kleven Shipyard in Norway, hull number 362, which is to be delivered this summer. OSJ
www.osjonline.com
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