This paper investigates a possible method for heave compensation on board deep-water drill-ships subjected to irregular-wave excitation. The proposed system exploits favorable interaction of coupled oscillators to achieve the desired results. This study examines an actively controlled compensator which performs well over a large wave-frequency bandwidth. Performance under certain operating conditions is investigated using a dynamic model. Simple mathematical arguments and frequency-domain computations in an irregular wave spectrum show the proposed heave compensation system to be effective within the bounds of linearity.
Active heave compensation on drill-ships in irregular waves
Ocean Engineering ; 25 , 7 ; 541-561
1998
21 Seiten, 11 Bilder, 11 Quellen
Aufsatz (Zeitschrift)
Englisch
Nonlinear Heave and Pitch Motions of Fast Ships in Irregular Head Seas
British Library Conference Proceedings
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