Marine Link
Tuesday, April 16, 2024

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

(Photo: BlastOne International)

Optimizing Blast and Paint Processes in New Construction Shipbuilding

The efficacy of surface preparation and coating application in the new construction…

(Photo: HII)

Ingalls Delivers LPD 29 to the US Navy

HII’s Ingalls Shipbuilding division has delivered the amphibious transport dock Richard M.

(Image: Austal USA)

Austal USA Begins Building US Navy's LCU 1710 Landing Craft

Austal USA earlier this month celebrated the start of construction on the first of…

(Credit: Mitsubishi Heavy Industries)

ClassNK Greenlights Mitsubishi’s Ammonia Fuel Supply System

Mitsubishi Shipbuilding, part of Mitsubishi Heavy Industries (MHI) Group, has acquired…

Source: Mitsubishi Shipbuilding

Mitsubishi Shipbuilding Receives Order for Ammonia Fuel Supply System

Mitsubishi Shipbuilding, a part of Mitsubishi Heavy Industries (MHI) Group, has received…

Peter Fetten (Photo: Americraft Marine)

Americraft Marine Appoints Peter Fetten as Chairman

Americraft Marine, one of the maritime subsidiaries of Libra Group that owns and…

Source: DNV

DNV Issues General Approval for Hybrid Support Structure

DNV has presented HD Hyundai with a general approval for ship application (GASA)…

(Photo: Felix Castillo / U.S. Navy)

OpEd: US Commercial Shipbuilding and Repair Industry Ensures American Strength at Sea

As Senator Roger Wicker of Mississippi once said, “Growth in commercial shipbuilding…

(Image: Incat Crowther)

Rottnest Fast Ferries Orders New Vessel

Construction on a new passenger ferry, designed by Incat Crowther for Western Australian…

Cathrine Kristiseter Marti (Credit: Vard)

Ex-Ulstein Chief Takes the Reins at Vard

Norwegian shipbuilder Vard, a subsidiary of the Fincantieri Group, has appointed…

(Photo: Eastern Shipbuilding Group)

Eastern Partners with Royal IHC to Build USACE Hopper Dredge

U.S. shipbuilder Eastern Shipbuilding Group, Inc (ESG) on Wednesday announced it…

© Vladimir / Adobe Stock

Japanese Partners Developing Method to Assess Ship Performance in Actual Seas

NYK and Japan Marine United Corporation (JMU) have joined forces to develop a method…

Related Articles

Offshore Oil

"Offshore" refers to the discovery and development of oil and gas resources which lie underwater. Usually the term refers to ocean-based oil extraction , though the term can also apply to drilling in lakes and inland seas. The remote locations…

Naval Architecture

Naval architecture is the field of engineering which deals with the design, construction and repair of ships, boats, and other marine vehicles. Ship and vessel design relies on many of the same technologies and engineering expertise found on shore…

Ship Repair

All ships need maintenance and repairs. Many repair and maintanance operations can be performed at sea or by the crew in port. Complicated or large-scale repairs might require the ship to be removed from commercial operation. Classification…

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.