Experimental investigation of a moored floating system

Katrin Ellermann, Daniel Beyer

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


Floating structures are generally excited by a more or less irregular sea state. Therefore the structure undergoes a nonlinear dynamical behaviour which results from hydrodynamic effects or the kinematic coupling of different components. The motions of these structures have been analysed intensively with numerical techniques which predict a wide range of nonlinear effects. On the other hand, experiments are still important when it comes to verifying these theoretical findings. Investigating such a floating structure experimentally requires a complex setup: A wave generator needs to be driven in an appropriate way to yield waves with the required characteristics at the structure. The structure itself is usually designed similar to a real–world system and it has to allow for a comparison with numerical analyses. Sensors which measure the tracks of the individual components not only have to reach a prescribed precision but also need to ensure that the motion is not perturbed as a result of the measurements. Lastly, unwanted disturbances have to be avoided. For experiments in a wave tank this includes that reflections have to be minimized. This talk addresses the development of an experimental setup for the investigation of a floating structure. It highlights components which are found to be critical for the obtained accuracy and proposes techniques to reduce experimental errors.
Original languageEnglish
Title of host publicationProceedings in Applied Mathematics and Mechanics
Publication statusPublished - 2008
Event79th Annual Meeting of the International Association of Applied Mathematics and Mechanics: GAMM 2008 - Bremen, Germany
Duration: 31 Mar 20084 Apr 2008


Conference79th Annual Meeting of the International Association of Applied Mathematics and Mechanics
Abbreviated titleGAMM2008

Fields of Expertise

  • Sonstiges

Treatment code (Nähere Zuordnung)

  • Basic - Fundamental (Grundlagenforschung)
  • Theoretical
  • Experimental

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