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Development of a Novel Time-Frequency Enhanced Volterra System Identification Method for the Modeling of a Nonlinear OWC Wave Energy Converter Under Irregular Sea Wave Excitation

[+] Author Affiliations
G. D. Gkikas

Maritime Research Institute of Netherlands (MARIN), Wageningen, The Netherlands

Paper No. OMAE2014-23436, pp. V08AT06A039; 10 pages
  • ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 8A: Ocean Engineering
  • San Francisco, California, USA, June 8–13, 2014
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4550-9
  • Copyright © 2014 by ASME


A system identification method combining the virtues of the Volterra series and Hilbert-Huang transform and developed for the modelling of the nonlinear dynamic pressure fluctuation inside the chamber of an Oscillating Water Column wave energy converter (OWC-WEC) is presented. The proposed method is validated for the case where the excitation corresponds to a general nonlinear stationary signal.

Copyright © 2014 by ASME



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