Marine Link
Monday, December 18, 2017

Shipbuilding / Vessel Construction

Shipbuilding is the construction of ships, which takes place in a specialized facility known as a shipyard. Shipbuilders, also called shipwrights, are workers which specialize in vessel construction and repair. The construction of boats is called boat building. Due to the smaller size and scope of the vessels being produced, boats do not necessarily require the full services of a shipyard but may be built in a boatyard or even smaller private facility.

Block construction is a modern shipbuilding method which involves the assembly of prefabricated sections. Cross-sections of the superstructure are pre-built in a shipyard, taken to the building dock (or slipway,) and then hoisted into position and attached. Some of the more equipped shipyards are able to build equipment and utilities into the blocks, pre-installing pipes, plumbing, and electrical cables. The more components that can be built into the blocks before final assembly, the less effort required once the hull is welded together.

Since the 40s, modern ships have been made of welded steel. The first ships produced by this method had problems with inadequate fracture toughness, which let to rare but devastating structural cracks. The development of specialized steel in the 50s has largely eliminated the problem of brittle fracture, although there are still instances due to the unregulated use of grade A and B steel. This problem seems to result when steel with unknown toughness or FATT (fracture appearance transition temperature) is used in side shells. Despite these occasional incidents, most problems with brittle fractures seem to have been eliminated my modern methods and regulation.

Depending on design and materials, vessels reach a point in their lifespan where refitting and repair become impractical or impossible. The demolition of ships is called ship breaking- a process designed to allow materials and components to be reused and recycled. Equipment can often be reused in other ships, and metals (particularly steel) are separated for scrap recycling, with the hulls being discarded in ship graveyards.

Tags: shipbuilding Vessel Construction

Mark Lamarre (Photo: ASC Shipbuilding)

ASC Shipbuilding CEO Lamarre Steps Down

ASC Shipbuilding chief executive officer Mark Lamarre will step down after three…

File photo: Nuclear-powered aircraft carrier John F. Kennedy under construction at Newport News Shipbuilding (Photo: John Whalen)

Proposal for 355-ship US Navy Signed into Law

Included in the 2018 National Defense Authorization Act (NDAA) signed today by President…

Photo: Courtesy Seaspan Shipyards

Canada Launches Offshore Fisheries Science Vessel

Seaspan Shipyards (Seaspan) has celebrated the launch of the first large vessel to…

File Photo: Province of Nova Scotia

Former Chief of Daewoo Shipbuilding Gets 6 Years in Jail

Former Daewoo Shipbuilding & Marine Engineering  (DSME) boss Nam Sang-tae sentenced…

Photo: Lloyd's Register

LR Presents CES Descriptive Notes to China Smart Ship

Great Intelligence, the first China smart ship, was presented with Lloyd's Register…

Her Majesty The Queen at the commissioning of HMS Queen Elizabeth (Photo: Royal Navy)

Queen Elizabeth Welcomes UK’s New Aircraft Carrier

The U.K.’s newest aircraft carrier HMS Queen Elizabeth was commissioned into the…

Photo: Wärtsilä

Wärtsilä Signs on Shuttle Tanker Development Project

Wärtsilä has signed a joint industry project cooperation (JIP) undertaking with Dalian…

Rear Admiral Mark H. Buzby, USN (Ret), Maritime Administrator, U.S. Maritime Administration

Interview: Rear Adm. Mark Buzby, US Maritime Administrator

Insights: Rear Admiral Mark H. Buzby, USN (Ret), Maritime Administrator, U.S. Rear Adm. Mark H.

The classification contract for CMA CGM’s 22,000 TEU dual-fuel containerships was signed during a ceremony at Marintec in Shanghai (Photo: BV)

CMA CGM’s Dual-fuel Mega Ships to be Built to BV Class

All nine of CMA CGM’s new gas-fueled Ultra Large Containerships will be built to…

At the contract signing, left to right: Andrey Zherebetsky, Managing Director C-Job Nikolayev, and Basjan Faber, Managing Director C-Job Naval Architects (Photo: C-Job Naval Architects)

C-Job Opens Ukraine Office

With its new location in Nikolayev, Ukraine, ship design and engineering company…

MHI to Reorganize its Shipbuilding Business

Mitsubishi Heavy Industries, Ltd. (MHI) announced it will establish two new wholly…

The second Air Warfare Destroyer 'Brisbane' heads out for its first phase of sea trials. Photo: Royal Australian Navy.

Australian Destroyer Enters Sea Trials

The second Hobart class destroyer, NUSHIP Brisbane, has commenced her first phase of sea trials…

Related Articles

Winch

A winch is a mechanism used to reel in, to let out, or otherwise adjust the tension of a rope, wire, or cable. Boats and ships make use of multiple winches to handle halyards, sheets, as well as anchor or mooring lines. The basic mechanism consists…

Maritime Standards

All nations require certain standards be met by ships and other marine structures which fly their flag. A classification society, or "Class", is a non-governmental regulatory association which regulates construction of vessels and offshore structures in the maritime industry.

Ship Electronics

Electronic devices classed for use in the marine environment. All electronics used onboard must be designed to fit in the small confines of a bridge and can come in contact with salt water, so they are made to be very water resistant or waterproof.

Port Authority

A port authority operates ports and other transportation infrastructure for a special-purpose district. Whether operated directly by the government or in cooperation with government agencies, North American port authorities are public entities and are governed by a board or commission.

Ship Simulators

A ship simulator is an advanced training device; an electronic or mechanical system used to expose vessel operators and crew members to typical shipboard conditions and systems. Simulation training is not a substitute for the experience of training on an actual vessel…
Maritime Reporter Magazine Cover Dec 2017 - The Great Ships of 2017

Maritime Reporter and Engineering News’ first edition was published in New York City in 1883 and became our flagship publication in 1939. It is the world’s largest audited circulation magazine serving the global maritime industry, delivering more insightful editorial and news to more industry decision makers than any other source.

Subscribe
Maritime Reporter E-News subscription

Maritime Reporter E-News is the subsea industry's largest circulation and most authoritative ENews Service, delivered to your Email three times per week

Subscribe for Maritime Reporter E-News