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An Experimental Study of Wave Loads on Deck in Irregular Waves

[+] Author Affiliations
Ravikiran S. Kota

Granherne-KBR, Houston, TXNorwegian University of Science and Technology (NTNU), Trondheim, Norway

Torgeir Moan

Norwegian University of Science and Technology (NTNU), Trondheim, Norway

Paper No. OMAE2012-84000, pp. 717-728; 12 pages
doi:10.1115/OMAE2012-84000
From:
  • ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 1: Offshore Technology
  • Rio de Janeiro, Brazil, July 1–6, 2012
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4488-5
  • Copyright © 2012 by ASME

abstract

Global loads on deck-structures due to air-gap loss in irregular seas are discussed. Estimation of such loads is important in structural integrity verification of fixed and floating platforms. The current study presents results from wave-tank experiments in which global forces and wetted lengths arising from wave impact on a rigid deck-box from several pseudo-random realizations of long-crested waves of moderate steepness are recorded. Short-term statistics and distributions of these quantities are estimated and compared against estimates from semi-analytical results previously reported by the authors for von Karman-type impact events in Gaussian waves. The scope of work presented here does not address wave loads on decks in extreme seas where the waves are steep and predominantly non-Gaussian.

Copyright © 2012 by ASME
Topics: Stress , Waves

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