APPROXIMATE HARMONIC ANALYSIS OF MARINE RISERS

dc.creatorTein, When-Yen
dc.date.accessioned2007-05-09T17:59:43Z
dc.date.available2007-05-09T17:59:43Z
dc.date.issued1987
dc.description.abstractA model of a marine riser system which is appropriate for the study of its dynamic behavior in deep water conditions is developed. This model is used to estimate the steady-state riser response to harmonic excitation. In this regard, the finite element method yields a linear discrete multi-degree-of-freedom structural model; its stiffness matrix varies with time due to riser top tension fluctuations. Further, Morison's equation is used for estimating the hydrodynamic load on the riser. Due to the nonlinearity of the drag term appearing in this equation, the riser equation of motion becomes nonlinear. An approximate analysis procedure based on the concepts of equivalent linearization and of time averaging leads to efficient determination of the riser maximum stress. A continuous beam model under constant tension which is equal to the average of the top and the bottom riser tension is used to provide an estimate of its natural frequencies. Numerical results from a variety of parameter studies are reported.
dc.format.mimetypeapplication/pdf
dc.identifier.callnoTHESIS C.E. 1987 TEIN
dc.identifier.citationTein, When-Yen. "APPROXIMATE HARMONIC ANALYSIS OF MARINE RISERS." (1987) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/13258">https://hdl.handle.net/1911/13258</a>.
dc.identifier.urihttps://hdl.handle.net/1911/13258
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectCivil engineering
dc.titleAPPROXIMATE HARMONIC ANALYSIS OF MARINE RISERS
dc.typeThesis
dc.type.materialText
thesis.degree.departmentChemical and Biomolecular Engineering
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
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