Open AccessHull dynamics and strength of fast electric boat
Author(s) -
S. Ryabushkin
Publication year - 2020
Publication title -
trudy krylovskogo gosudarstvennogo naučnogo centra
Language(s) - English
Resource type - Journals
eISSN - 2618-8244
pISSN - 2542-2324
DOI - 10.24937/2542-2324-2020-2-s-i-224-229
Subject(s) - hull , trimming , hydrostatic equilibrium , acceleration , trim , finite element method , displacement (psychology) , ship motions , mechanics , structural engineering , response amplitude operator , amplitude , dynamics (music) , wake , engineering , marine engineering , mechanical engineering , physics , acoustics , classical mechanics , psychology , quantum mechanics , psychotherapist
This paper identifies trim & draft parameters (spatial trimming) of a real fast boat with low-capacity motor, mostly running as a displacement vessel. The paper discusses various loading cases and calculates integral parameters in still water and regular waves (of various frequencies and incidence angles) for the ship at standstill and running at different speeds, also giving response-amplitude operators (RAOs) of motions and wave-induced moments. The study also gives calculation results for threedimensional fields of hydrostatic and hydrodynamic pressures and acceleration for further analysis of stress-strain state taking into account that finite-element model has no supports. High compliance (both global and local) of non-metal hull implies that the procedure suggested in this paper could be experimentally validated in future.