Forced lateral motion of deep-water drill strings

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dc.contributor.advisorWilhoit, J. C.en_US
dc.creatorGraham, R. D. (Robert Douglas)en_US
dc.date.accessioned2016-04-21T12:01:52Zen_US
dc.date.available2016-04-21T12:01:52Zen_US
dc.date.issued1963en_US
dc.description.abstractAn equation of motion governing lateral deflection, considering elastic, dynamic, and drag forces is derived. This equation is applied to three different classes of drill string behavior: a beam with constant axial tension, a perfectly flexible cable, and a beam with linearly varying axial tension. Each equation is solved for the case of simple harmonic motion. A typical deep-water drill string is synthesized by subdivision into short beam sections at the top and bottom, joined by a flexible cable in the center. The lateral deflection of the drill string is obtained by joining the beam and cable solutions, subject to boundary conditions at each junction. The drill string considered is displaced harmonically at the surface by the ship and is built-in at the ocean floor. The deflection mode shapes are plotted and analyzed. The bending stresses at the top of the drill string are computed and compared with values observed under similar, conditions; the bending stresses in the vicinity of the ocean floor are also plotted.en_US
dc.format.digitalOriginreformatted digitalen_US
dc.format.extent58 ppen_US
dc.identifier.callnoThesis M.E. 1963 GRAHAMen_US
dc.identifier.citationGraham, R. D. (Robert Douglas). "Forced lateral motion of deep-water drill strings." (1963) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/89209">https://hdl.handle.net/1911/89209</a>.en_US
dc.identifier.digitalRICE0246en_US
dc.identifier.urihttps://hdl.handle.net/1911/89209en_US
dc.language.isoengen_US
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.en_US
dc.titleForced lateral motion of deep-water drill stringsen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentMechanical Engineeringen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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