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RESEARCH PAPERS: Arctic Engineering/Offshore Mechanics

The Effect of Seabottom Proximity of the Vortex-Induced Vibrations and Fatigue Life of Offshore Pipelines

[+] Author and Article Information
D. T. Tsahalis

Shell Development Company, Houston, Tex. 77001

J. Energy Resour. Technol 105(4), 464-468 (Dec 01, 1983) (5 pages) doi:10.1115/1.3230954 History: Received August 31, 1982; Revised May 09, 1983; Online October 22, 2009

Abstract

The effect of the seabottom proximity on the vortex-induced vibrations of suspended spans of offshore pipelines is discussed in the light of recent relevant experimental results. It is shown that the effect of the seabottom proximity is to drastically alter the vortex-induced vibrations of supsended spans resulting into longer fatigue lives or equivalently longer safe lengths. A “generalized” fatigue damage is formulated universally applicable to all suspended spans.

Copyright © 1983 by ASME
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