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Reports from Indian Institute of Technology (IIT) Madras Provide New Insights into Ocean Engineering (Motion Control Studies of a Barge Mounted Offshore Dynamic Wind Turbine Using Gyrostabilizer)

  • Oct 19, 2021
Engineering Daily News

2021 OCT 19 (NewsRx) -- By a News Reporter-Staff News Editor at Engineering Daily News -- New research on Engineering - Ocean Engineering is the subject of a report. According to news reporting originating in Tamil Nadu, India, by NewsRx journalists, research stated, “This paper is a sequel to our recently published article ‘Motion control of a barge for offshore wind turbine (OWT) using gyrostabilizer’, Ocean Eng. 209 (2020). The present investigation focuses on the performance of a gyrostabilizer on a barge mounted dynamic Offshore Wind Turbine (OWT) on reducing the angular motions with rotor operating at different speeds through experimental studies.”

The news reporters obtained a quote from the research from the Indian Institute of Technology (IIT) Madras, “The adjective ‘dynamic’ refers to model wind turbine with rotor that is in motion. To represent the operational scenario, different wind turbine rotor rotating conditions such as below rated power (60 rpm), rated power (85 rpm) and above rated power (114 rpm) were selected. Experiments were conducted in the wave basin with a 1:50 Froude-scaled model of ITI barge supported 5-MW NREL OWT. Forced vibration tests were conducted to evaluate the platform rotations and nacelle response under regular and irregular waves in parked and operating conditions. The platform rotations and nacelle accelerations during roll and pitch DOF for gyrostabilizer ‘off’ and ‘on’ condition with gyro flywheel spin velocity of 5700 rpm were measured and compared to evaluate the motion reduction rates. Using gyrostabilizer, under regular waves, roll/pitch motion reduction by 64/54% for parked, 57/39% for below rated, 67/45% for rated and 64/39% for above rated conditions were obtained. For irregular waves a better reduction of these motions was obtained.”

According to the news reporters, the research concluded: “By reducing the roll and pitch motions, the nacelle responses are also reduced significantly.”

This research has been peer-reviewed.

For more information on this research see: Motion Control Studies of a Barge Mounted Offshore Dynamic Wind Turbine Using Gyrostabilizer. Ocean Engineering, 2021;237:109578. Ocean Engineering can be contacted at: Pergamon-elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier -; Ocean Engineering -

Our news correspondents report that additional information may be obtained by contacting Panneerselvam Rajamanickam, Indian Institute of Technology, Dept. of Ocean Engineering, Chennai 600036, Tamil Nadu, India.

The direct object identifier (DOI) for that additional information is: This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.


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