An aeroelastic model for vortex-induced vibrating cylinders subject to frequency lock-in


Journal Article

© 2015 Elsevier Ltd. This work presents a novel way to calculate the response amplitude of an elastically supported cylinder experiencing vortex-induced vibrations. The method couples a computational fluid dynamic (CFD) model of the shedding vortex flow to a structural model representation of the elastically supported cylinder. The aerodynamic forces on the cylinder are calculated using a harmonic balance, frequency domain solver. Three cases are considered: the cylinder vibrating transverse to the flow, in-line with the flow, and with both degrees of freedom. Two shedding patterns are observed, symmetric and antisymmetric, depending on the lock-in region considered. The in-line degree of freedom does not have a significant effect on the cylinder cross-flow response, except for very low mass or very low damping.

Full Text

Duke Authors

Cited Authors

  • Besem, FM; Thomas, JP; Kielb, RE; Dowell, EH

Published Date

  • February 1, 2016

Published In

Volume / Issue

  • 61 /

Start / End Page

  • 42 - 59

Electronic International Standard Serial Number (EISSN)

  • 1095-8622

International Standard Serial Number (ISSN)

  • 0889-9746

Digital Object Identifier (DOI)

  • 10.1016/j.jfluidstructs.2015.10.009

Citation Source

  • Scopus