Optimal control of the heave motion of marine cable/subsea-unit systems

Conference · Sun Dec 31 00:00:00 EST 1995

OSTI ID:237932

Huang, S; Vassalos, D ^[1]

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1. Univ. of Strathclyde, Glasglow (United Kingdom). Marine Technology Centre

One of the key problems associated with subsea operations involving tethered subsea units is the motions of support vessels on the ocean surface which can be transmitted to the subsea unit through the cable and increase the tension. In this paper, a theoretical approach for heave compensation is developed. After proper modeling of each element of the system, which includes the cable/subsea-unit, the onboard winch, control theory is applied to design an optimal control law. Numerical simulations are carried out, and it is found that the proposed active control scheme appears to be a promising solution to the problem of heave compensation.

• OSTI ID: 237932
• Report Number(s): CONF-950604-; ISBN 1-880653-18-4; TRN: IM9625%%257
• Resource Relation: Conference: 5. international conference on offshore and polar engineering, The Hague (Netherlands), 11-15 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the fifth (1995) international offshore and polar engineering conference. Volume 2; Chung, J.S. [ed.] [Colorado School of Mines, Golden, CO (United States)]; Sayed, M. [ed.] [National Research Council Canada, Ottawa, Ontario (Canada)]; Gresnigt, A.M. [ed.] [Delft Univ. of Technology (Netherlands)]; PB: 580 p.
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
FLUID-STRUCTURE INTERACTIONS
DAMPING
FIELD PRODUCTION EQUIPMENT
CABLES
UNDERWATER OPERATIONS
WAVE FORCES
RESPONSE FUNCTIONS
WATER WAVES
PETROLEUM INDUSTRY