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Analysis of sub-surface towing of tendons and comparison of results using WINPOST and ORCAFLEX
| dc.creator | Mendon, Perdoor Mukthi | |
| dc.date.accessioned | 2012-06-07T23:16:48Z | |
| dc.date.available | 2012-06-07T23:16:48Z | |
| dc.date.created | 2002 | |
| dc.date.issued | 2002 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-2002-THESIS-M85 | |
| dc.description | Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item. | en |
| dc.description | Includes bibliographical references (leaves 28-29). | en |
| dc.description | Issued also on microfiche from Lange Micrographics. | en |
| dc.description.abstract | During tendon towing the pipe is floating in a horizontal plane parallel to the sea-surface unlike the usual vertical slender members like risers, mooring lines, etc where the pipe/cable is perpendicular to the sea-surface. This change in projection of the surface of the pipe to the current and wave direction requires that the drag force, lift force and other forces acting on the pipe be considered to suit the horizontal profile, unlike the usual riser/mooring line model. Software are available to solve more conventional slender members, however the validity of the software for analyzing tendon towing has to be checked by comparing the results with that of another established software or theory. In this dissertation a simple analytical method (tensioned string model) is developed to analyze selected simplified sub-surface tow examples under static and dynamic loads using ORCAFLEX. The effect of the in-line (tangential) component of the drag force, which is usually neglected in the slender members like risers/mooring lines standing in the vertical direction, is estimated. Also the effect of different current direction on tendon profile is studied. Two independent software, WINPOST and ORCAFLEX are used to analyze a simple horizontal pipe model to validate the results against each other. Also to facilitate more general understanding of the problem, different towing methods for slender members have been briefly discussed and the methods are compared for their suitability for tendon towing. | en |
| dc.format.medium | electronic | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en_US | |
| dc.publisher | Texas A&M University | |
| dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
| dc.subject | ocean engineering. | en |
| dc.subject | Major ocean engineering. | en |
| dc.title | Analysis of sub-surface towing of tendons and comparison of results using WINPOST and ORCAFLEX | en |
| dc.type | Thesis | en |
| thesis.degree.discipline | ocean engineering | en |
| thesis.degree.name | M.S. | en |
| thesis.degree.level | Masters | en |
| dc.type.genre | thesis | en |
| dc.type.material | text | en |
| dc.format.digitalOrigin | reformatted digital | en |
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