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

[+] Author Affiliations
José Miguel Rodrigues, C. Guedes Soares

Universidade de Lisboa, Lisbon, Portugal

Paper No. OMAE2017-62613, pp. V07AT06A016; 7 pages
doi:10.1115/OMAE2017-62613
From:
  • ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 7A: Ocean Engineering
  • Trondheim, Norway, June 25–30, 2017
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5773-1
  • Copyright © 2017 by ASME

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 © 2017 by ASME
Topics: Pressure , Stress , Ships

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