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Numerical Simulation of Ringing Response in Marine Platforms

[+] Author Affiliations
Seon Han

Texas Tech University, Lubbock, TX

Paper No. OMAE2005-67503, pp. 859-866; 8 pages
doi:10.1115/OMAE2005-67503
From:
  • ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering
  • 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 2
  • Halkidiki, Greece, June 12–17, 2005
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 0-7918-4196-0 | eISBN: 0-7918-3759-9
  • Copyright © 2005 by ASME

abstract

In this paper, ringing phenomenon in a drag dominated marine platform is studied numerically using linear transverse and nonlinear coupled axial and transverse beam models. The effects of inertia, added mass, and relative velocity of the structure on ringing are investigated. It is found that, for the structure considered, inertia and added mass have little effect on ringing, while the relative velocity had a significant effect on its duration. The maximum ringing amplitude predicted by the nonlinear beam model is similar to that predicted by the linear beam model. When a smaller second impact is introduced, ringing stops when the nonlinear beam model is used.

Copyright © 2005 by ASME

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