Experimental study on dynamic positioning control for semi-submersible platform

T. Hyakudome, M. Nakamura, H. Kajiwara, W. Koterayama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The paper is concerned with a dynamic positioning control for a semi-submersible platform model. An offshore platform is required to maintain a given position against external forces such as ocean current, wind, and waves. In such a control, motions caused by linear wave exciting force add to the drifting of the platform and it is impossible for thrusters to resist this wave frequency motion because the linear exciting force is very strong. Purpose of the control is to maintain a given position using thrusters that do not respond to this force in the wave frequency range. The problem was formulated in a framework of H(∞) control, and a controller was designed using a linear mathematical model obtained from nonlinear motion equations of the platform. Model tests were carried out and the designed controller performed well. Model experiments were conducted in oblique incident waves and some successful results are shown.

Original languageEnglish
Title of host publicationProceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 1), Brest, France, 30 May - 4 June 1999
EditorsJ S Chung, T Matsui, W Koterayama, J S Chung, T Matsui, W Koterayama
PublisherInternational Society of Offshore and Polar Engineers
Pages76-82
Number of pages7
ISBN (Print)1880653400
Publication statusPublished - 1999
EventProceedings of the 1999 Ninth International Offshore and Polar Engineering Conference - Brest, France
Duration: May 30 1999Jun 4 1999

Other

OtherProceedings of the 1999 Ninth International Offshore and Polar Engineering Conference
CountryFrance
CityBrest
Period5/30/996/4/99

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)
  • Engineering(all)
  • Environmental Science(all)

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  • Cite this

    Hyakudome, T., Nakamura, M., Kajiwara, H., & Koterayama, W. (1999). Experimental study on dynamic positioning control for semi-submersible platform. In J. S. Chung, T. Matsui, W. Koterayama, J. S. Chung, T. Matsui, & W. Koterayama (Eds.), Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 1), Brest, France, 30 May - 4 June 1999 (pp. 76-82). International Society of Offshore and Polar Engineers.