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Effective shipbuilding steps that every engineers should know
1. Effective Shipbuilding Steps That Every Engineers
Should Know
Marine engineers, navigating officers, and onboard members perform a number of
activities in the process of building a ship. However, there is a aspect which doesn't
not involve onboard members but surely needs services of naval architects, designers,
and other shore working members.
In this blog post, I will be discussing about the ship building process, right from the
scratch. I will be covering the basic points as the subject is so detailed that a full sized
text book can be written on it. This post covers the basic technical and non-technical
aspects of the process.
Invite Tenders and Quotations
The very first step involves getting bid proposal from a number of ship developers or
builders. The proposal gives a basic idea about the shape and size of ship, time
involved in building the ship, and the cost for building it.
Image Credit :- gcaptain.com
2. Arrive at an Agreement:
The next step involves discussing the details of the project and arriving at an
agreement. Once the bid is finalized the ship builder and client discuss the details
and specifications and arrive at the cost of the project. After this an agreement is
made between the parties to complete the legal formalities.
Design Phase
Performance Design:
The most crucial factor in ship performance is speed. Prior to the design phase, ship
models are tested in test tanks to measure the speed of the real ship incase the hull
is formed in a specific manner. If the hull is not formed in the required manner then
the real ship will not deliver the desired speed.
After tank testing, begins the design phase, which is usually conducted in three sub
phases as per the level of details and refinement.
Basic Design: At this stage, requirements such as the load carrying capacity of the
ship, the type of ship, the fuel storage, ship stability, and consumption capacity are
complied with.
Image Credit :- www.nedcon.ro
Detailed Design:
The first step elucidated is the detailed design stage. It includes practical
3. implementation of the requirements analyzed before. It is ensured that the ship is
built as per the design. The ship designers ensure that the ship is akin to the original
requirements specified. At this level it is ensured that there is no compromise as far
as the performance of the ship is concerned.
Production design:
This stage is ahead of the detailed design stage. Actual drawings of the components
are created so that the field staff can produce them physically. Though not all parts
are built from the scratch, the body of the ship is built. Other major components,
such as generators, engine, and other auxiliary equipment, are sought from third
party suppliers and then fitted into the ship so that the construction can be
completed.
Ordering materials:
As per the specifications laid out, materials are ordered. A lot of material is required
in shipbuilding. It must be ensured that the materials are sought on time.
Production plan:
Once the material is acquired, targets for job assignments are set. A number of things
are coordinated to ensure that the production is carried out as per the plan. It is
ensured that this plan is flexible so that targets can be achieved easily. All this
ensures that the delivery of goods is on time.
Image credit :- www.csum.edu
Steel Cutting:
The next step in ship building involves cutting and processing. Steel plates are cut
and processed as per the blue print prepared in the design stage. To curve the steel
4. plates, they are heated and bent. It needs expertise and experience to get accurate
shapes for the steel plates. They are critical to the functioning of the ship.
Plate Assembly:
The cut steel plates as well as the processed components are assembled, block by
block, in this stage to ensure manufacturing efficiency. The assembly is carried out
phase by phase starting with small scale assembly, then mid scale, and in the end
large scale assembly is performed.
Pipes and Wires:
Installation of rigging articles is one of the most crucial stages of ship building. Joining
the assembled blocks, huge blocks are formed. Pipes, and electric wires are also
installed. The rigs remain in place until the block is docked on the ground.
Mounting of Blocks:
The blocks joined in the previous stage are now mounted or installed using rigs and
cranes as per the specifications. The dimensions of the blocks should remain the
same.
Launch:
Once the ship is all set, the dock is filled with water to let the ship float. The ship
gradually drifts into the sea. The operation of the quay is the crucial stage wherein
the hull is quality checked. Every component of the ship is checked to ensure that
everything is in the right size and at the right place.
Sea Trial Run:
In this stage, sea trial is conducted to ensure that the ship is perfectly operating. All
the ship instruments as well as the speed of the ship are verified.
Final Delivery:
Once the trial is conducted, ship is ready to be delivered to the end client. The
captain, the chief engineer and the crew prepare for the ship's debut voyage.
Above were the different stages involved in ship building. Following the specifications
ensures that ship building is done perfectly. This process involves a lot of hard work.
Planning as well as execution is essential to give form to a perfect ship which covers
distances in a nick of time.