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Stochastic Analysis of Impact Loads on Marine Structures

[+] Author Affiliations
Jens B. Helmers, Hui Sun, Tormod Landet, Torgrim Driveklepp

Det Norske Veritas, Høvik, Norway

Paper No. OMAE2012-83849, pp. 659-670; 12 pages
doi:10.1115/OMAE2012-83849
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

An efficient Monte Carlo method is developed to perform the stochastic analysis of slamming loads on marine structures. The probability distribution of the maximum impact force during slamming is established for a given stationary sea state. The method is demonstrated by using a uniform wedge and Wagner’s flat plate theory. Stochastic effects related to deadrise angle, flow separation from the knuckle, vertical position of the structure, vertical motion and roll motion are investigated. The statistics of other parameters such as the duration of the slamming event and the maximum penetration of the structure into water are also assessed.

Copyright © 2012 by ASME

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