"SHIPBUILDING IN THE MODERN ERA"
On Wednesday 14th of December, SNAME NTUA Greek Student Section
held its first technical presentation for the year 2016-2017 titled
‘’Shipbuilding in the modern era’’. Our speaker was Mr Charilaos
Senior Consultant in P&P Marine Consultants. The presentation was
hosted in the Multimedia Amphitheater at NTUA Library and was moderated
by Alexandros Senteris. The lecture had rich participation, including
members and students from NTUA and TEI of Athens.
In this presentation Mr Petrakakos focused on the present
situation as well as the future changes in shipbuilding and ship repair
industry. He gave an overview of the ship production ideal goals and the
major works in order to understand the entire shipbuilding process
and the flow of material from the stockyard to the end of product.
Rather than first having an aerial view of the shipbuilding process he
each process and ship work in detail; as per the sequence followed in
The second day started with presentations early in the morning
that brought into focus the different types of services that SNAME
provide and the ways that the members could full use of them. At later
working groups were created , each one sharing its ideas and reasons
on WHY SNAME exists and HOW it can become a successful organization. In
the evening a cocktail reception was held at the Tide Lock Park, where
enjoyed their drink while socializing with other colleagues.
At the beginning, explained the various stages that are involved in a
shipbuilding process. Per him, one of the most important steps is the
ship design. The design is basically done in three sub phases namely the
design, detailed design and production design which are different in
details and refinements. The hull form and arrangement of ship are
determined at the design stage. Research and development are also
conducted at this
The next step is the production planning. He pointed out that
working and production schedules are developed considering the efficient
production. Afterwards, having prepared the design and the material for
ship is ordered a large percentage of outfit items are also placed by
the shipyard, so as to keep the hull fabrication and outfit
installation processes in parallel.
In addition Mr Petrakakos referred to his explanation in another
crucial steps: plate assemply and mounting of blocks. He explained how
the cut steel plates as well as the processed components are assempled
in order to ensure manufacturing efficiency. Especially assemply is
carried out phase by phase starting with small scale assemply, the mid
scale and in the end large scale assemply is performed. Then, the blocks
joined or installed using rigs and cranes.
Consequently, he mentioned the operation of quay and the sea trial
where all the ship instruments and components are checked and verified
to ensure that everything is at the right place and in the right size.
In conclusion, he pointed out that this process involves a lot of
hard work but every day all the shipyards and shipbuilders around the
world are making efforts to deliver ships which meet the demand of
regulating authorities of being sustainable, energy efficient and