| Chimney stacks for cruise ships from Fincantieri
In the biennium 1998-99 Trimarine has been responsible
for the installation management of some very large naval
structures in composites. The exhaust stack fairings of the cruise ships built
at Fincantieri.
These are elements with a surface area in excess of 500mq built
until a few years ago in metal. It is therefore easy to appreciate
the significant weight savings obtained from the use of sandwich
composites.
 Weight
saving in a chimney stack fairing is important given the
elevated position of these elements with respect to the vessels
vertical centre of gravity but it is also fundamental to simplify
the movements in the course of installation. Composite construction
then facilitates the economical production of elements with complex
geometries, unattainable in metal. Considering that the chimney
stack fairing is one of the more visible parts of the ship and
that it became the symbol of every shipping company, it can be
easily understood the graphical importance of this element and
the creative freedom that the construction in composites offers
to the designer.
This project has seen the involvement of Trimarine not only in
the management of the in-situ installation, but also in the previous
development phase of the construction process in order to optimise
the assemby times of the numerous elements and their final assembly
on board.
Since on a ship of these dimensions you can find up to 5000 people
working at the same time, it was of fundamental importance to install
the Fairings in the shortest possible time in order to reduce every
interference or interruption of other critical jobs taking place
at the same time.
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