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Computer Controlled Capsizing Tests Using Tailored Wave Sequences

[+] Author Affiliations
Günther F. Clauss, Janou Hennig

Berlin University of Technology, Berlin, Germany

Paper No. OMAE2002-28297, pp. 539-549; 11 pages
doi:10.1115/OMAE2002-28297
From:
  • ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering
  • 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 1
  • Oslo, Norway, June 23–28, 2002
  • Conference Sponsors: Ocean, Offshore, and Arctic Engineering Division
  • ISBN: 0-7918-3611-8 | eISBN: 0-7918-3599-5
  • Copyright © 2002 by ASME

abstract

This paper presents a new kind of computer controlled sea-keeping test procedure for investigating large roll motions and capsizing behavior of ship models. In cooperation with the Hamburg Ship Model Basin (HSVA) our research group has carried out computer controlled capsizing tests in steep transient wave groups for two different types of ship models which show typically two different modes of rolling. The parameters of the model seas – transient wave sequences consisting of random seas or regular wave trains with an embedded deterministic high transient wave – are systematically varied to investigate the ship model response with regard to metacentric height, model velocity, and course angle for each of both ship types. The wave elevation at the position of the ship model at any position in time and space is calculated by a semi-empirical method (and controlled by registrations during model tests) in order to relate wave excitation to the resulting roll motion.

Copyright © 2002 by ASME
Topics: Waves , Computers

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