Marine Link
Sunday, November 18, 2018

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 Buzby, Maritime Administrator, U.S. Maritime Administration

INSIGHTS: Rear Admiral Mark H. Buzby, USN (Ret)

Rear Admiral Mark Buzby is the Maritime Administrator, U.S. Maritime Administration.Rear Adm.

Daewoo Shipbuilding: Deal Revised to Build Just One Container Ship for $90 mln

Daewoo Shipbuilding & Marine Engineering said its contract with an European shipowner was amended to

SHONAI MARU, (Photo: "K" Line)

"K" Line Delivers Coal Carrier for JERA Trading

Kawasaki Kisen Kaisha, Ltd., Tokyo, (hereafter called “K” Line) has announced the…

Aerial rendering of LT Shipbuilding’s Suao Port campus after completion. Image: Taiwan International Ports Corporation

Taiwan to Begin Shipbuilding at Suao Port

Lung Teh (LT) Shipbuilding Company formally received construction permits for the site at Suao Port…

Photo: Viking Line

ABB Signs Breakthrough Contract for Marine Automation in China

ABB has won its first marine automation system contract for a cruise ferry in China…

Image: Samsung Heavy Industries

Workforce Down by 27% at S. Korea’s ‘Big 3’ Shipbuilders

South Korea's Big Three shipbuilders  - Hyundai Heavy Industries (HHI), Samsung Heavy…

The M/V National Geographic Quest (CREDIT NBBB)

NBBB Delivers for Linblad Expeditions

Nichols Brothers Boat Builders (NBBB) was contracted by Lindblad Expeditions in December 2015…

file Image / AdobeStock / © Renaschild

Davie: CTMA Ferry Procurement dogged by Legal Proceedings

The Coopérative de transport maritime et aérien’s (CTMA) procurement effort to purchase…

Pic: Wan Hai Lines

Wan Hai Lines Confirms Orders for 20 Newbuilds

Taiwanese container carrier Wan Hai Lines confirmed an order of 20 container vessels…

(Photo: Nichols Brothers Boat Builders)

NBBB to Build Four Foss Tractor Tugs

Foss Maritime of Seattle has entered into contract with Nichols Brothers Boat Builders…

Image: China Navigation Company

China Navigation Company Opens Shanghai HQ

Swire Group’s shipping arm China Navigation Company establishes presence in Shanghai…

Image: Used with permission, National Fire Protection Association

Preventing Maritime Vessel Explosions – The Role of the Marine Chemist

With advances in technology, increased regulatory requirements for training, and…

Related Articles

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 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.

Sonar

Sonar is a technique that uses sound to navigate, communicate with or detect other vessels, and to observe the distance and velocity of underwater objects. The acoustic frequencies used vary from extremely low (infrasonic) to very high (ultrasonic).

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.
Maritime Reporter Magazine Cover Nov 2018 - Workboat Edition

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