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You are here: Home / Research / Publications / Floating Structures / Nonlinear Dynamic Behavior of Spar Platforms

Nonlinear Dynamic Behavior of Spar Platforms

Summary

Project Title:
Nonlinear Dynamic Behavior of Spar Platforms

 

Prinicipal Investigators:
C. P. Johnson

 

Sponsor:
National Science Foundation

 

Completion Date:
November, 1996

 

Final Report:
B87 (Click to view final report abstract)

Scope of Work:
The main objective of this work is to gain a better understanding of the different sources of nonlinearities and the importance of each effect on the dynamic behavior of a Spar Platform in deep water through a time domain analysis, as well as comparing with experimentally available data. Specific objectives are:

  • Validation of model with experimental data (Basin test OTRC)
  • Parametric
    • Different kinds of waves (Monochromatic, Bichromatic and Irregular
    • Geometry of spar (Large Spar and Small Spar)
    • Current
    • Modeling of mooring lines (cables and springs)
  • Evaluation of some nonlinear effects
    • Drag Term
    • Evaluation of forces in displaced position
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