RESEARCH PAPERS: Offshore Mechanics/Ocean Engineering/Arctic Engineering

Longitudinal Resonant Behavior of Very Deep Water Risers

[+] Author and Article Information
C. P. Sparks

Institut Francais du Petrole, Cedex, France

J. P. Cabillic

Compagnie Francaise des Petroles, Paris, France

J.-C. Schawann

Societe Nationale Elf Aquitaine, Paris, France

J. Energy Resour. Technol 105(3), 282-289 (Sep 01, 1983) (8 pages) doi:10.1115/1.3230916 History: Online October 22, 2009


This paper is concerned with the problem of longitudinal resonant vibration of a 3000-m-long disconnected riser. Theoretical investigations of natural frequencies and induced displacements and dynamic tensions are presented, as well as practical investigations of riser longitudinal hydrodynamic damping and of short period heave excitation, likely to be communicated to such a riser, by a typical drillship. Analytical expressions, useful for describing and understanding resonant behavior, are developed in the Appendix.

Copyright © 1983 by ASME
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