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Publications
Santos, P.C., Miranda, A. and Santos, T. A. (2025), Innovative double bottom configuration for inland cruise vessels at Douro River, Innovations in the Analysis and Design of Marine Structures, Garbatov, Y. & Guedes Soares C. (Eds.), Taylor & Francis, London, UK, 619-631.
Inland cruise ships have become one of Europe’s fastest-growing forms of tourism, and numerous ships have been built in Portugal to operate in the Douro River. These ships share common dimensions and structures and are strongly influenced by the various infrastructures along the river. Among the different restrictions, the limitation on the air draught is particularly relevant, as it prevents the improvement of free heights in the public spaces located on the ship’s upper decks, decreasing passenger comfort. This study aims to study a new double bottom configuration for these ships with a reduced height of 800 mm to make it possible to increase the free ceiling height while keeping the air draught unchanged. A case study is presented comprising a rearrangement of tanks and piping layout and a finite element analysis of the modified structure of the ship. An assessment of the stability of the intact and damaged structures is also carried out. The study’s results confirm the feasibility of the new configuration and reveal some associated disadvantages.
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