Digital construction of the signaling/ rescue system located in coastal aquatic areas

For signaling and rescue, at international level, modular systems made of composite structures are used, which ensure the maintaining at the water surface of them, in a fixed point, in any meteorological conditions etc. According to the diversity of activities carried out in the marine and/ or river sector and depending on them, worldwide signaling systems are applied: for the safety of navigation, for data recording and processing activities and for the marking of ecological protection areas (National Strategy for Sustainable Development of Romania 2030, 2017; La Depeche, 2014). For this last category, the signaling of the navigable channel is made in accordance with the "Basic Regulations for Navigation on the Danube" edited by the Danube Commission, 1991 edition, Budapest, while for the maritime buoyage system the IALA agreement is used, concluded in Paris, on the 15th April 1982 and involves the use of floats and buoys made of composite materials. The work aims to create a digital signaling/ rescue system applied in the coastal aquatic area (Council Regulation (EC) No. 509/2006; Decision No. 1600/2002/EC). In this respect, using FEM modelling, the geometric domain was defined, the composite structure of which the system is made was modeled, the structure with finite elements was generated (discretization, properties modelling, specific finite elements obtaining), the constraints and loads were modeled and finally, in the post-processing stage, the results (deformation, Von Mises stress, displacements) were visualized and studied