Active heave compensation on drill-ships in irregular waves

✍ Scribed by Umesh A. Korde

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 309 KB
• Volume: 25
• Category: Article
• ISSN: 0029-8018
• DOI: 10.1016/s0029-8018(97)00028-0

✦ Synopsis

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.