DEVELOPMENT OF A CONSTRUCTIVE BOTTOM PROTECTION TO REDUCE THE IMPACTS OF GROUNDING
World statistics shows that grounding is one of the most common types of accidents that draws attention to its possible consequences. The article is devoted to development of the constructive bottom protection, ensuring the reduction of the consequences of grounding. In order to prevent deformation of the second floor deck and prevent displacement power plant foundations, to ensure efficiency after removing the last vessel afloat, a new design of bottom grillage is proposed. This design is characterized in that its lower portion is more malleable than the top one. In the proposed technical solution, the lower part of floors and stringers contains tubular element of constructive protection, which deforms in the case of grounding. A methodology, which allows selecting the parameters of the tubular elements of the constructive protection, is presented. It is shown that the desired overlap of the lower part of the bottom grillage can be provided with different combinations of the values of the diameter and thickness of the tubular structural element protection, but power consumption will vary in design depending on the above parameters. The recommendations for assessment of the energy intensity of the modernized bottom grillage based on the consideration of deformation of an element of constructive bottom protection of rigid-plastic formulation are given.