TY - GEN
T1 - Riser response analysis by modal phase reconstruction
AU - Lucor, Didier
AU - Triantafyllou, M. S.
PY - 2006/11/29
Y1 - 2006/11/29
N2 - A methodology is presented to identify the vortex induced vibrational modes of a riser, based on data from computational fluid dynamics coupled to a long beam under tension and placed in cross-flow; two inflow velocity profiles are tested: (a) uniform, and (b) exponential shear. The modes we estimate are in fact nonlinear equilibria between the flow-induced excitation forces and the structural dynamics and are characterized by varying amplitude and phase along the span; these are complex modes, mixtures of traveling and standing waves.
AB - A methodology is presented to identify the vortex induced vibrational modes of a riser, based on data from computational fluid dynamics coupled to a long beam under tension and placed in cross-flow; two inflow velocity profiles are tested: (a) uniform, and (b) exponential shear. The modes we estimate are in fact nonlinear equilibria between the flow-induced excitation forces and the structural dynamics and are characterized by varying amplitude and phase along the span; these are complex modes, mixtures of traveling and standing waves.
UR - https://www.scopus.com/pages/publications/33751335192
U2 - 10.1115/OMAE2006-92265
DO - 10.1115/OMAE2006-92265
M3 - Conference contribution
AN - SCOPUS:33751335192
SN - 0791837777
SN - 9780791837771
T3 - Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
BT - Proceedings of 25TH International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2006
T2 - 25TH International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2006
Y2 - 4 June 2006 through 9 June 2006
ER -