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dc.contributor.authorAlfosail, Feras
dc.contributor.authorNayfeh, Ali H.
dc.contributor.authorYounis, Mohammad I.
dc.date.accessioned2020-12-30T07:38:46Z
dc.date.available2020-12-30T07:38:46Z
dc.date.issued2017-01-01
dc.identifier.urihttp://hdl.handle.net/10754/666759
dc.description.abstractIn this paper, we study the nonlinear dynamics of statically deflected offshore structures undergoing vortex induced vibrations. We consider inclined risers that have catenary-like profiles where the riser structure is modelled as an Euler-Bernoulli beam with mid-plane stretching and under self-weight. The statically deflected structure is subjected to vortex induced vibration forces and its equation of motion is coupled with Van der Pol oscillator. Then, we use mode shapes, extracted from the linear eigenvalue problem, in Galerkin method. This reduces the coupled system to a set of nonlinear ordinary differential equations. We use long time integration with Runge-Kutta method to integrate the coupled system and obtain the response while varying the inclination angle, internal velocity, and external velocity. The numerical results reveal the effects of the nonlinearity on the response of the structure, modal interaction, and resonance interactions.
dc.publisherInternational Institute of Acoustics and Vibration, IIAV
dc.relation.urlhttps://research.kaust.edu.sa/en/publications/nonlinear-vortex-induced-vibrations-of-inclined-marine-risers
dc.rightsArchived with thanks to International Institute of Acoustics and Vibration, IIAV
dc.titleNonlinear vortex induced vibrations of inclined marine risers
dc.typeConference Paper
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentMechanical Engineering
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.conference.date2017-07-23 to 2017-07-27
dc.conference.name24th International Congress on Sound and Vibration, ICSV 2017
dc.conference.locationLondon, GBR
dc.eprint.versionPre-print
dc.contributor.institutionDepartment of Engineering Science and Mechanics, MC 0219, Virginia Polytechnic Institute, State University, Blacksburg, VA, 24061, United States
kaust.personAlfosail, Feras
kaust.personYounis, Mohammad I.
dc.identifier.eid2-s2.0-85029423558


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