Top tensioned marine risers may experience collision due to harsh weather conditions and strong currents. To avoid collision between the risers, even under changing environmental conditions, a supervisory switched controller was proposed. This included the controller architecture and the riser operational conditions. A case study showed how the controller switched according to the environmental disturbances and the riser behavior with satisfactory performance. For a riser array in deep waters interference between individual risers exposed to strong ocean current and/or large TLP (Tension Leg Platform) motions is of concern. The lateral deflections are likely to be large, and the risers may experience collision with fatigue or surface damage as a consequence. A case study shows how the controller structure and parameters change according to the environmental conditions and the riser behavior.


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    Titel :

    Supervisory switched control of marine risers


    Weitere Titelangaben:

    Geschaltete Überwachungskontrolle von Stahltrossen von Halbtaucherbohrinseln


    Beteiligte:


    Erscheinungsdatum :

    2007


    Format / Umfang :

    6 Seiten, 8 Bilder, 2 Tabellen, 8 Quellen


    Anmerkungen:

    (nicht paginiert)


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




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