A state space approach for the eigenvalue problem of marine risers

Handle URI:
http://hdl.handle.net/10754/625829
Title:
A state space approach for the eigenvalue problem of marine risers
Authors:
Alfosail, Feras ( 0000-0002-5553-4945 ) ; Nayfeh, Ali H.; Younis, Mohammad I. ( 0000-0002-9491-1838 )
Abstract:
A numerical state-space approach is proposed to examine the natural frequencies and critical buckling limits of marine risers. A large axial tension in the riser model causes numerical limitations. These limitations are overcome by using the modified Gram–Schmidt orthonormalization process as an intermediate step during the numerical integration process with the fourth-order Runge–Kutta scheme. The obtained results are validated against those obtained with other numerical methods, such as the finite-element, Galerkin, and power-series methods, and are found to be in good agreement. The state-space approach is shown to be computationally more efficient than the other methods. Also, we investigate the effect of a high applied tension, a high apparent weight, and higher-order modes on the accuracy of the numerical scheme. We demonstrate that, by applying the orthonormalization process, the stability and convergence of the approach are significantly improved.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Alfosail FK, Nayfeh AH, Younis MI (2017) A state space approach for the eigenvalue problem of marine risers. Meccanica. Available: http://dx.doi.org/10.1007/s11012-017-0769-z.
Publisher:
Springer Nature
Journal:
Meccanica
Issue Date:
5-Oct-2017
DOI:
10.1007/s11012-017-0769-z
Type:
Article
ISSN:
0025-6455; 1572-9648
Sponsors:
This research was made possible through the fund and resources of the IT Research Computing at King Abdullah University of Science and Technology (KAUST) in Thuwal, Saudi Arabia. Also, the first author acknowledges the support of Saudi Aramco.
Additional Links:
http://link.springer.com/article/10.1007/s11012-017-0769-z
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorAlfosail, Ferasen
dc.contributor.authorNayfeh, Ali H.en
dc.contributor.authorYounis, Mohammad I.en
dc.date.accessioned2017-10-09T05:50:34Z-
dc.date.available2017-10-09T05:50:34Z-
dc.date.issued2017-10-05en
dc.identifier.citationAlfosail FK, Nayfeh AH, Younis MI (2017) A state space approach for the eigenvalue problem of marine risers. Meccanica. Available: http://dx.doi.org/10.1007/s11012-017-0769-z.en
dc.identifier.issn0025-6455en
dc.identifier.issn1572-9648en
dc.identifier.doi10.1007/s11012-017-0769-zen
dc.identifier.urihttp://hdl.handle.net/10754/625829-
dc.description.abstractA numerical state-space approach is proposed to examine the natural frequencies and critical buckling limits of marine risers. A large axial tension in the riser model causes numerical limitations. These limitations are overcome by using the modified Gram–Schmidt orthonormalization process as an intermediate step during the numerical integration process with the fourth-order Runge–Kutta scheme. The obtained results are validated against those obtained with other numerical methods, such as the finite-element, Galerkin, and power-series methods, and are found to be in good agreement. The state-space approach is shown to be computationally more efficient than the other methods. Also, we investigate the effect of a high applied tension, a high apparent weight, and higher-order modes on the accuracy of the numerical scheme. We demonstrate that, by applying the orthonormalization process, the stability and convergence of the approach are significantly improved.en
dc.description.sponsorshipThis research was made possible through the fund and resources of the IT Research Computing at King Abdullah University of Science and Technology (KAUST) in Thuwal, Saudi Arabia. Also, the first author acknowledges the support of Saudi Aramco.en
dc.publisherSpringer Natureen
dc.relation.urlhttp://link.springer.com/article/10.1007/s11012-017-0769-zen
dc.rightsThe final publication is available at Springer via http://dx.doi.org/10.1007/s11012-017-0769-zen
dc.subjectState spaceen
dc.subjectMarine riseren
dc.subjectOrthonormalizationen
dc.titleA state space approach for the eigenvalue problem of marine risersen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalMeccanicaen
dc.eprint.versionPost-printen
dc.contributor.institutionUniversity of Jordan, Amman, Jordanen
dc.contributor.institutionDepartment of Engineering Science and Mechanics, MC 0219, Virginia Polytechnic Institute and State University, Blacksburg, USAen
dc.contributor.institutionDepartment of Mechanical Engineering, State University of New York, Binghamton, USAen
kaust.authorAlfosail, Ferasen
kaust.authorYounis, Mohammad I.en
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