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RESEARCH PAPERS: Offshore Mechanics and Arctic Engineering

Cross-Flow Vibrations of a Pipe Close to a Rigid Boundary

[+] Author and Article Information
V. Jacobsen, M. B. Bryndum

Danish Hydraulic Institute, Ho̸rsholm, Denmark

R. Nielsen

FLOTEC A/S, Oslo, Norway

S. Fines

Det norske Veritas, Ho̸vik, Norway

J. Energy Resour. Technol 106(4), 451-457 (Dec 01, 1984) (7 pages) doi:10.1115/1.3231105 History: Received October 21, 1983; Revised May 16, 1984; Online October 22, 2009

Abstract

The paper describes the results of a model test series with the purpose of determining the hydroelastic vibrations of a nearbed pipeline span exposed to flow conditions created by steady current, waves and waves superimposed on steady current. The study has been conducted using a model composed of a spring-mounted rigid pipe segment and a flat plate simulating the sea bed. The hydroelastic cross-flow vibrations of the pipe segment are presented as function of the flow velocity, flow condition (waves and/or steady current) and the relative distance of the pipe to the seabed. A simple approach to analyze the vibrations caused by an irregular wave train is presented.

Copyright © 1984 by ASME
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