On vibration control of flexible pipes in ocean drilling system

Takayuki Ioki, Kazuhisa Ohtsubo, Hiroyuki Kajiwara, Wataru Koterayama, Masahiko Nakamura

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

7 Citations (Scopus)

Abstract

The paper is concerned with a reentry control problem in ocean drilling system with a flexible riser pipe. In the reentry operation, it is necessary to move the flexible riser pipe to a target position as fast as possible not to excite unstable vibration. Then there is a possibility to improve the control performance by scheduling control gains according to moving velocity, because the motion of flexible riser strongly depends upon the hydrodynamic drag force proportional to squared velocity. In the paper, a gain scheduling controller for an experimental model is designed using LPV (Linear Parameter Varying) control method. Then the effectiveness of the LPV control is shown through numerical simulation and model experiment.

Original languageEnglish
Title of host publicationProceedings of The Sixteenth 2006 International Offshore and Polar Engineering Conference, ISOPE 2006
Pages26-30
Number of pages5
Publication statusPublished - 2006
Event16th 2006 International Offshore and Polar Engineering Conference, ISOPE 2006 - San Francisco, CA, United States
Duration: May 28 2006Jun 2 2006

Other

Other16th 2006 International Offshore and Polar Engineering Conference, ISOPE 2006
CountryUnited States
CitySan Francisco, CA
Period5/28/066/2/06

All Science Journal Classification (ASJC) codes

  • Ocean Engineering

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