USS Fitzgerald Damaged by Transport Ship
U.S. Navy warship USS Fitzgerald, which suffered heavy damage and nearly sank off the coast of Japan after a fatal collision with a Philippine containership in June, has returned to Fleet Activities (FLEACT) Yokosuka to repair further damage received while aboard heavy lift transport vessel Transshelf. The Arleigh Burke-class guided missile destroyer USS Fitzgerald (DDG 62) suffered two punctures in her hull caused by the heavy lift vessel's steel support structure during on load at anchorage, the Navy said.
Progress on Gudrun Platform Construction
The steel support structure for the Gudrun platform is now in place on the North Sea field, completing the first phase of the extensive installation work being carried out there. ”The entire operation has been carried out according to plan and in a secure manner,” reports Anders Opedal, senior vice president for projects in Statoil’s Technology, Projects and Drilling business area. “We’ve passed an important milestone for coming on stream at the right time and to budget. Installation of the steel structure began on July 24…
Fournier Joins The Ulven Companies as Sales VP
The Ulven Companies has hired Steve Fournier as Vice President of Sales. Fournier will be responsible for strategic leadership, business development and management in building, driving and executing sales for all companies. Fournier brings to the role more than 15 years of experience in the oil and gas industry, the last 11 years of his career in a number of leadership capacities at oilfield services firm Express Energy Services. The Ulven Companies is a family of five companies (Ulven Forging, Ulven Aerospace, Skookum, Wolf Steel, and Houston Structures) providing a variety of forging, casting and machining processes.
USS Fitzgerald Arrives in Pascagoula for Repair
U.S. Navy warship USS Fitzgerald, which was damaged and nearly sunk after a fatal collision with a cargo ship in June and then was damaged again while on board a heavy lift transport vessel, has arrived in Pascagoula, Miss., for repair work at Huntington Ingalls Industries shipyard. The Arleigh Burke-class guided missile destroyer arrived in Pascagoula on January 19, aboard heavy lift vessel MV Transshelf inward bound from Yokosuka, Japan. Fitzgerald is expected to spend several days in the Port of Pascagoula as the heavy lift ship will commence the reverse operation of unfastening…
New Japanese-built LNG Carrier Named
A naming ceremony was held for a new liquefied natural gas (LNG) carrier, Diamond Gas Orchid, at Mitsubishi Heavy Industries Ltd.’s Nagasaki Shipyard.The newbuild, owned by Diamond LNG Shipping 1 Pte. Ltd., a 50/50 joint venture company between NYK and Mitsubishi Corporation (MC), will sail under a long-term time-charter contract with MC’s wholly owned subsidiary in Singapore, Diamond Gas International Pte. Ltd.After delivery on June 29, 2018, the ship will transport LNG from Louisiana in the U.S.
LR Provisional Rules for SPS
Lloyd’s Register, in conjunction with Intelligent Engineering, Ltd, has developed a set of provisional Rules for new construction and ship repair using steel sandwich construction. Entitled Provisional Rules for the Application of Sandwich Panel Construction to Ship Structure, the Rules were approved in early 2006 by a specially convened sub-committee of Lloyd’s Register’s Technical Committee, comprising independent experts drawn from across the industry. Sandwich Plate System (SPS) is a technology created by UK-based Intelligent Engineering Ltd in which two metal plates are bonded to a solid elastomer core. The elastomer provides continuous support to the plates and stops local plate buckling, eliminating the need for stiffeners.
New GE LM2500 Module for US Navy Frigates
GE’s Marine Solutions announced it has completed the acoustic attenuation and weight comparison testing between its new lightweight composite LM2500 gas turbine module and the steel enclosure. The results verified a 2,500-kilogram weight reduction and a significant improvement in noise attenuation—60 percent quieter—when compared to its steel predecessor. “The tests compared the noise and weight of the steel enclosure to the novel one piece composite design. Results verified that the new carbon fiber provides a significant reduction in the wall weight and noise…
Huntington Ingalls Says Steel Tariffs Won't Raise Prices for Now
Huntington Ingalls Industries, the largest shipbuilder for the U.S. government, said new tariffs on steel and aluminum should not impact the price of its own shipbuilding in the near-term, but does not know if tariffs will raise prices for its suppliers. Huntington's Newport News Shipbuilding yard in Virginia has a multi-year financial agreement that guarantees steady pricing for its steel, known as a hedge, Jennifer Boykin, president of Newport News Shipbuilding in Newport News, Virginia, told reporters on Tuesday at the Sea Air Space Exposition in National Harbor, Maryland.
NAPA Releases 2003.1
At press time, NAPA Release 2003.1 was scheduled for launch this spring. Efficiency and user-friendliness are promoted by enhancing the availability of the graphic user interface, and by designing tools for entire processes. For instance, the NAPA Manager process handling tool supplies the user with templates presenting complete calculation chains. The new version includes a number of new features, among them a generic optimization tool. NAPA Geometry now supports the renewed interactive parametric surface definitions. The user can design and choose the parameters desired, as all the main particulars of the ship are always available whenever the software is in use. The NAPA Manager, introduced in 2001 for organizing complex tasks, has forged ahead.
ClassNK & NAPA tie-up to Improve Ship Design
ClassNK and leading global maritime software company NAPA have announced a new joint project to reduce the time and cost of designing vessels in accordance with the new IACS harmonised Common Structural Rules. The new project will enhance the data linkage between ClassNK’s PrimeShip-HULL(HCSR) design support software with NAPA’s 3D model based integrated design software NAPA Steel greatly improving the efficiency of the ship design process and reducing the cost of designing vessels in accordance with the new rules.
ScanReach's In: New Safety at Sea Tech
Norwegian start-up technology firm ScanReach is set to redefine safety standards at sea with In:Range, a unique system capable of locating anyone on a vessel or offshore installation in real time. The plug and play technology is simple, easy to install, low cost and, according to the team behind it, could save countless lives at sea. With In:Range ScanReach has solved a problem nobody else has. The firm has created a system and technology capable of sending and receiving data signals wirelessly through any structure, including steel.
Sembcorp Marine Opens Largest Fabrication Unit in Southeast Asia
Sembcorp Marine launched its new state-of-the-art steel structure fabrication workshop – the largest of its kind in Southeast Asia – which is set to boost the company’s steel fabrication capacity for its future needs. Officially opened by Economic Development Board Chairman Dr Beh Swan Gin today, the 120,000-square-metre facility at Sembcorp Marine’s Tuas Boulevard Yard is fully covered. Comprising five bays for pre-treatment, cutting and assembly, the workshop is ergonomically designed to facilitate a seamless work flow.
Fatigue and Fracture Analysis of Ship Structures
BMT Fleet Technology Limited, a subsidiary of BMT Group Ltd, announced the next Fatigue and Fracture Analysis workshop for Fall 2011. This three-day workshop will be of interest to Naval Architects, Engineers and Ship Superintendents who are responsible for vessel design, maintenance and operation. Senior students engaged in naval architecture studies would also benefit. The workshop presents tools and techniques for quantitative fatigue and fracture assessment of ship structures considering the materials, structural geometry and loading. Practical application examples are used to reveal the value of this technology in supporting safe and cost-effective material, design and maintenance decisions.
Drydocks World Conforms to FPC under EU Regulation
Drydocks World, the international service provider to the shipping, offshore, oil, gas and energy sectors has successfully been certified to European Standards EN 1090 – 1 and EN 1090-2. The certification program is part of the European Union’s Construction Products Regulation CPR 305/2011. Drydocks World’s main yard activities undertaken in its facility are found to be complying with Factory Production Control (FPC) requirements by the auditing body. The scope of the certification includes Corrosion Protected Load Bearing Steel Structures…
Tech File: Bulk Barge Cargo Transfer Systems Solution
Pontchartrain Materials Company finds innovative solution for barge unloading applications. Located in New Orleans, La., Pontchartrain Materials Corporation, LLC provides aggregates to general contractors as well as asphalt and ready-mix companies. In addition to their chief product, limestone, the family-owned company sells recycled concrete and recycled asphalt. Pontchartrain sources the material from quarries in northern states, transferring it down the Mississippi River by barge to one of three company aggregate yards or directly to customers in the New Orleans and surrounding area.
Newbuild Kreuz Challenger Mobilized for Brunei Shell Contract
Subsea services company Kreuz Subsea has mobilized the recently delivered newbuild dive support vessel, Kreuz Challenger, as part of its seven-year contract with Brunei Shell Petroleum Company Sdn. Bhd. (BSP).The contract, which runs until 2022, includes supporting BSP with inspection, repair and maintenance services to be carried out on offshore oil and gas structures in Negara Brunei Darussalam's territorial waters.Typically located in water depths of up to 80 meters, these include drilling platforms…
AVEVA Upgrades Structural Steel Software
AVEVA has released new enhancements to its AVEVA Bocad product range for structural steel detailing software. AVEVA Bocad features a plate and bar nesting capability for more efficient planning and use of materials, the developer said. An enhanced weld numbering and traceability feature provides efficient increased fabrication efficiency, design quality assurance and improved structural integrity maintenance. In addition, elements of AVEVA Bocad can now be brought into AVEVA Marine production tools to fabricate detailed ship and offshore designs.
New Fatigue Model Leads to More Durable Ships
Heikki Remes, a researcher at the Aalto University in Finland, has developed a model making it possible to determine how fatigue sets in with various welded steel materials. The model allows for the development of lighter structures, and as a consequence, more energy-efficient ships. By utilizing modern manufacturing technology and new materials, it is possible to achieve more efficient structures than the ones that currently exist. In addition, better physical models are needed to ensure structural strength, Remes said.
New Fatigue Model Leads to More Durable Ships
Heikki Remes, a researcher at the Aalto University in Finland, has developed a model making it possible to determine how fatigue sets in with various welded steel materials. The model allows for the development of lighter structures, and as a consequence, more energy-efficient ships. By utilizing modern manufacturing technology and new materials, it is possible to achieve more efficient structures than the ones that currently exist. In addition, better physical models are needed to ensure structural strength, Remes says.
VT Shipbuilding Delivers HMS Daring Foremast
VT Shipbuilding completed its construction work on the Royal Navy’s first-of-class Type 45 destroyer HMS Daring with delivery of the foremast to BAE Systems Naval Ships in Glasgow. The 89-tons steel structure was lifted onto a barge at VT’s Portsmouth Shipbuilding Facility and towed over 600 nautical miles by tug, completing the transit in just over four days. The foremast was then transferred directly to HMS Daring where fitting out will be completed. The major element of the foremast is to house the Sampson multi-function radar suite, which will be linked to the ship’s Principal Anti-Air Missile System (PAAMS). VT has already installed some 12,000 m of cable inside the 19 m high mast, with 800 different cables and 400 pipes included in the structure.
Guidelines - YP47 Steel for Hull Structures
The first large sized container carrier in the world to use a new grade of higher tensile steel in its hull structure with a specified yield point of 47 kgf/mm (460N/mm) was built to NK class and delivered in June 2007. Known as YP47 steel, this comparatively strong and tough material is currently attracting much attention as an effective solution to the challenges presented by the use of extremely thick steel plates in the construction of the hull structures of container carriers that have been growing ever larger in size in recent years. ClassNK prepared these guidelines drawing upon the results of many years of research conducted into the practical application of YP47 steel and the experience gained from actual use of the material in the construction of large size container carriers.
New Berthing System for Mooring Cargo Ships
Eagle Rock Aggregates, U.S. subsidiary of Polaris Materials Corporation, has completed a new aggregate import facility at the Port of Long Beach that features a docking structure which will be used for mooring mid-sized cargo ships. “The existing berth structures at the site were designed for barges,” said Herb Wilson, President and CEO of Polaris Materials. “We removed them and replaced them with an advanced berthing system designed specifically for the docking of our Panamax- class, self-discharging bulk carriers. The new berthing system includes two stiff leg, dual purpose moorings.
Finite Element Strength Analysis for ATB Load Box
The loading and response dynamics of an Articulated Tug & Barge (ATB) load box are complex. They typically require advanced finite element analysis methods and procedures to design an efficient support structure to ensure a durable design and to facilitate meeting Class strength requirements. To study the dynamic response of the loads imparted on the tug from the barge, a finite element analysis (FEA) is carried out. Loading conditions that include the static sea pressure, gravity loads, and reaction forces from the ATB Coupler are incorporated into the FEA analysis.