The fast ferries have an increasing importance in the
naval industry. At high speed the motions of the ship can degrade
her stability and performance, and also the passengers comfort and
the crew efficiency. By means of actuators such moving flaps at the
transom and other control surfaces, it is tried now to reduce the ship
The project present here has the target of creating
good control systems using this kind of actuators. For this purpose
the first step planned is a complete modelling study for the six D.O.F.
of the ship motions, and for several angles of the waves. On the basis
of the models obtained, simulation enviroments will be created for the
study of the motions and courses of the ship. Some quality criteria
will be defined and a set of controllers will be designed, according
to several alternative control methodologies. The results of such alternatives
will be compared, using the simulation enviroments, and the best (as
dictated by the defined criteria) will be selected for its implementations
and experimental tests.
The reseach concerns a specific ship that has been built
by E.N. Bazán. A scaled down replica of this ship is now in
use in the Canal de Experiencias Hidrodinámicas (CEHIPAR), where
the experiment will be accomplished.
KEY WORDS: high speed marine craft, fast ferries, multivariable
control, robust control, intelligent control, dynamic models, simulation
DURATION: from 2001 to 2003