The top and bottom angles of a marine riser are of crucial importance during e.g. drilling and workover operations. A ver- tical position control with active heave compensator (AHC) is proposed to maintain the safety of the riser when subjected to environmental excitations. The possibility of reducing the maxi- mum angular response level by adjusting the vertical rod position by means of an active heave compensator is investigated with a positioning algorithm based on adaptive backstepping. Riser top and bottom angles are dealt with by the algorithm in order to minimize both angles.
|Title of host publication||Proceedings of the 30th International Conference on Ocean, Offshore and Artic Engineering|
|Publication status||Published - 2011|
|Event||30th International Conference on Ocean, Offshore and Arctic Engineering - Rotterdam, Netherlands|
Duration: 19 Jun 2011 → 24 Jun 2011
Conference number: 30
|Conference||30th International Conference on Ocean, Offshore and Arctic Engineering|
|Period||19/06/2011 → 24/06/2011|