Active heave compensation on drill-ships in irregular waves |
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Authors: | Umesh A. Korde |
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Affiliation: | 5901 Ardwick Drive, Memphis, TN 38119, USA |
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Abstract: | 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. |
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Keywords: | Drillships Oscillators (electronic) Mathematical models Frequency domain analysis Heave compensation system Irregular waves |
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