Flow‐Induced Vibrations of Marine Risers

Autor: Bokaian, Alireza, Geoola, Farhad
Zdroj: Journal of Waterway, Port, Coastal, and Ocean Engineering; January 1987, Vol. 113 Issue: 1 p22-38, 17p
Abstrakt: Experimental work is carried out to investigate the behavior of an elastically mounted circular cylinder having vibrations restricted to a plane normal to the incident flow, as influenced by the vicinity to a similar but rigid and much larger diameter body. The tests indicate that the flexible cylinder may undergo either a vortex‐resonance, a galloping, or a combination of both. At some spacings, the cylinder mean position, stationary or galloping, changes with flow velocity. On decreasing the separation, the morion generally becomes more severe.
Databáze: Supplemental Index