Flutter velocity of a suspension bridge

Version 1.2 (71.2 KB) by E. Cheynet
The coupled flutter velocity of a single-span suspension bridge is computed in the frequency domain
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Updated 10 Mar 2023

FlutterBridge_FD

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The coupled flutter velocity of a single-span suspension bridge is computed in the frequency domain

Summary

The critical flutter velocity Vcr of a suspension bridge is estimated using a simple computational model accounting for the lateral, vertical and torsional motion of the bridge deck and using a multimodal approach. The computation is conducted in the frequency domain using the method proposed in [1]. The computed value of Vcr is compared to the famous analytical expressions from Selberg [2] and Rocard [3].

Content

The present submission contains:

  • The function flutterFd, which computes the critical flutter velocity following [1]
  • The function VcrFlutter, which computes the critical flutter velocity following [2,3]
  • An example file Example.m
  • Two .mat files modalParameters_case1.mat and modalParameters_case2.mat that are used to load the eigenfrequencies and mode shapes of the two bridge models investigated

This is the first version of the submission. Some bugs may still exist. Any question, comments or suggestion is warmly welcomed.

References:

[1] Jain, A., Jones, N. P., & Scanlan, R. H. (1996). Coupled aeroelastic and aerodynamic response analysis of long-span bridges. Journal of Wind Engineering and Industrial Aerodynamics, 60, 69-80.

[2] Selberg, A., & Hansen, E. H. (1966). Aerodynamic stability and related aspects of suspension bridges.

[3] Rocard, Y. (1963). Instabilite des ponts suspendus dans le vent-experiences sur modele reduit. Nat. Phys. Lab. Paper, 10.

Cite As

E. Cheynet (2024). Flutter velocity of a suspension bridge (https://github.com/ECheynet/FlutterBridge_FD/releases/tag/v1.2), GitHub. Retrieved .

MATLAB Release Compatibility
Created with R2017b
Compatible with any release
Platform Compatibility
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Version Published Release Notes
1.2

See release notes for this release on GitHub: https://github.com/ECheynet/FlutterBridge_FD/releases/tag/v1.2

1.1

Added the project website

1.0.0.0

To view or report issues in this GitHub add-on, visit the GitHub Repository.
To view or report issues in this GitHub add-on, visit the GitHub Repository.