Aeroelastic modelling of long-span suspension bridges

J. Michael R. Graham, David J.N. Limebeer, Xiaowei Zhao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Citations (Scopus)


The 2D aerodynamic modelling of long-span suspension bridges is considered. We use thin airfoil theory from the aircraft industry and a sectional bridge model with an integrated controllable trailing-edge flap. The relatively less well known aerodynamic properties of leadingedge flap will be studied in detail. The optimal approximation of the classical Theodorsen circulation function will be studied as part of the bridge sectional model building exercise, which can therefore be re-casted in a form suitable for control systems analysis and design. The critical wind speeds for flutter and torsional divergence are predicted precisely. Static winglets are shown to be relatively ineffective to mitigate torsional divergence.

Original languageEnglish
Title of host publicationProceedings of the 18th IFAC World Congress
PublisherIFAC Secretariat
Number of pages6
Edition1 PART 1
ISBN (Print)9783902661937
Publication statusPublished - 2011
Externally publishedYes

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
Number1 PART 1
ISSN (Print)1474-6670

ASJC Scopus subject areas

  • Control and Systems Engineering


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