Abstract
The paper presents the rescue systems of submarines used worldwide. The idea of rescue seats was explained and described. The seat's load caused by the pressure of hydrostatic pressure, the thrust of the rescue vehicle, and the sea current was defined in accordance with the requirements of STANAG 1297. According to the standard, an analysis of the stress state of a Kobben-class submarine rescue seat loaded with the pressure of an emergency vehicle was carried out. The sea current and hydrostatic pressure at a depth of 700 m were taken into account. Non-linearities related to the description of the material and large deformations were used. Johnson-Cook characteristics for HY-80 steel are described. The stress state results in a Kobben-class submarine rescue seat obtained based on FEM simulations for a submersion depth of 700 m are presented. The results are shown in two variants. Variant I - following the standard, Variant II – author's proposal. Then differences were demonstrated, and additional recommendations were proposed.
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