A nonlinear controller for offshore structures under wave excitations

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dc.AffiliationOctober University for modern sciences and Arts (MSA)
dc.contributor.authorTerro M.J.
dc.contributor.authorMahmoud M.S.
dc.contributor.authorAbdel-Rohman M.
dc.contributor.otherDepartment of Civil Engineering
dc.contributor.otherKuwait University
dc.contributor.otherPO Box 5969
dc.contributor.otherSafat-13060
dc.contributor.otherKuwait; Modern Sciences and Arts University
dc.contributor.otherAmer Street
dc.contributor.otherDokki
dc.contributor.otherEgypt
dc.date.accessioned2020-01-25T19:58:36Z
dc.date.available2020-01-25T19:58:36Z
dc.date.issued2001
dc.descriptionScopus
dc.description.abstractIn this paper, a new feedback-control design is developed and applied to an offshore structure under wave excitation. The nonlinear Morison equation is employed to estimate the wave forces. The feedback-control design proceeds in two consecutive stages: a nominal stage based on linear quadratic theory for regulating a linear part of the system dynamics, and an adjustment stage in the form of a nonlinear controller with a tuning gain factor for accommodating the nonlinearities while maintaining the overall stability. A SIMULINK model is designed to simulate the response of a three-floor steel jacket platform example. Results of the simulation of this structure with and without feedback-control are discussed to demonstrate the effectiveness of this control method.en_US
dc.description.urihttps://www.scimagojr.com/journalsearch.php?q=76514&tip=sid&clean=0
dc.identifier.issn10248684
dc.identifier.urihttps://cutt.ly/drLqw0y
dc.language.isoEnglishen_US
dc.relation.ispartofseriesKuwait Journal of Science and Engineering
dc.relation.ispartofseries28
dc.subjectFeedback control designen_US
dc.subjectMorison equationen_US
dc.subjectNonlinear controllersen_US
dc.subjectOffshore structuresen_US
dc.subjectWave excitationsen_US
dc.titleA nonlinear controller for offshore structures under wave excitationsen_US
dc.typeArticleen_US
dcterms.isReferencedByAbdel-Rohman, M., Leipholz, H.H.E., Automatic active control of structures (1980) Journal of the Structural Division, pp. 663-677. , ASCE; Abdel-Rohman, M., (1993) Control of Nonlinear Vibrations in Civil Structures, pp. 265-320. , Chapter 4, Kuwait University Press, Kuwait; Abdel-Rohman, M., Structural control of a steel jacket platform (1996) Structural and Engineering Mechanics, 4 (2), pp. 125-138; Anderson, B.O.D., Moore, J.B., (1990) Optimal Control: Linear Quadratic Methods, , Prentice-Hall, New Jersey, USA; Chakrabati, S.K., (1987) Hydrodynamics of Offshore Structures, , Springer-Verlag, Berlin, Germany; Gosh, D., Meirovitch, L., Optimal control of wave induced vibrations in semisubmersible structures with flexible superstructures (1985) AIAA Symposium, pp. 1-14. , San Antonio, TX, USA; Karunakaran, D., Leira, B.J., Moan, T., Reliability analysis of drag-dominated offshore structures (1993) Proceedings of the 3rd ISOPE, , Singapore; Kawano, K., Active control effects on dynamic response of offshore structure (1993) Proceedings of the 3rd ISOPE, , Singapore; Miller, R.K., Masri, S.F., Dehghanyar, T.J., Caughey, T.K., Active vibration control of large civil structures (1988) Journal of Engineering Mechanics, 114 (9), pp. 1542-1570. , ASCE; Patel, M.H., (1989) Dynamics of Offshore Structures, , Butterworth & Co. Publishers, New York, NY, USA; Rajagopalan, K., Reliability of offshore jackets using point estimation (1993) Proceedings of the 3rd ISOPE, , Singapore; Reinhorn, A.M., Manolis, G.D., Wen, V.Y., Active control of inelastic structures (1987) Journal of Engineering Mechanics, 113, pp. 315-333. , ASCE, EM3; Yang, J.N., Wu, J.C., Hybrid control of seismic-excited bridge structures (1995) Journal of Earthquake Engineering and Structural Dynamics, 24, pp. 1437-1451
dcterms.sourceScopus

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