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Dynamic Modeling of Flow Induced Vibration Power-Plants

[+] Author Affiliations
Nikolaos I. Xiros, Ralph Saxton, Juliette W. Ioup

University of New Orleans, New Orleans, LA

Michael M. Bernitsas, Hai Sun

University of Michigan, Ann Arbor, MI

Paper No. OMAE2018-78163, pp. V010T09A009; 15 pages
doi:10.1115/OMAE2018-78163
From:
  • ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 10: Ocean Renewable Energy
  • Madrid, Spain, June 17–22, 2018
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5131-9
  • Copyright © 2018 by ASME

abstract

Based on experimental data from the Marine Renewable Energy Laboratory (MRELab) at the University of Michigan, a data model is developed in order to permit dynamical analysis and controller synthesis for power-plants based on Vortex Induced Vibrations (VIV) for power generation and energy production. For the particular experimental settings used at the MRELab, data series of various kinematic, dynamic and energetic variables were recorded through the use of one to two cylinders as bluff bodies in a cross-flow. In the present research, these data series are analyzed in order to produce a dynamical model in an appropriate phase space. The process of model derivation is entirely data-driven in the sense that the number of degrees of freedom, or state variables, reflects the dimension of the phase space for the process. The outcome is a model which allows the identification of regime-dependent features such as attractors, basins of attraction, separatrices, etc., which can occur in the basic system dynamics.

Copyright © 2018 by ASME

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