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research-article

Ship Vertical Loads From Using an Adaptive Mesh Pressure Integration Technique for Froude-Krylov Forces Calculation

[+] Author and Article Information
José Miguel Rodrigues

Centre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa Avenida Rovisco Pais 1049-001 Lisboa, Portugal
miguel.rodrigues@centec.tecnico.ulisboa.pt

C. Guedes Soares

FASME Centre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa Instituto Superior Técnico Avenida Rovisco Pais 1049-001 Lisboa, Portugal
c.guedes.soares@centec.tecnico.ulisboa.pt

1Corresponding author.

ASME doi:10.1115/1.4040722 History: Received July 22, 2017; Revised June 26, 2018

Abstract

Dynamic vertical bending moments are determined for a military vessel hull in still water and under head waves, with a weakly nonlinear method. The domain for hydrostatic and undisturbed pressures integration is time-variant and generated with a quad-tree adaptive mesh algorithm, on which exact formulations for pressure on polygonal elements are used. Linear radiation and diffraction pressures, on another mesh superimposed with the aforementioned, are calculated with a frequency domain code. Results are compared with published experimental ones for small and large wave heights.

Copyright (c) 2018 by ASME
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