Eccentric-wing flutter stabilizer – Simplified analysis and main findings-Reference-Cited by-同舟云学术

Eccentric-wing flutter stabilizer – Simplified analysis and main findings

Published:2019 Issue: Volume: Page:
ISSN:2221-3783
Container-title:IABSE Congress, New York, New York 2019: The Evolving Metropolis
language:
Short-container-title:

Author:

Starossek Uwe¹^ORCID

Affiliation:

1. Hamburg University of Technology

Abstract

<p>A device aiming at preventing bridge flutter is studied. It consists of fixed wings positioned with a large lateral offset along the edges of the bridge deck. The wings are attached to the bridge deck by means of lateral support structures. Flutter analyses for various kinds of bridges and wind-tunnel tests confirm the flutter-suppression effectiveness of the wings. They constitute a passive damping device without moving parts. This is an advantage over devices with moving parts, which meet resistance due to reliability and maintenance concerns. The main findings to date concerning analysis, flutter-suppression effectiveness, and cost-efficiency of the eccentric-wing flutter stabilizer are summarized. In addition, a simplified approach for the analysis of torsional flutter of a bridge equipped with this device is presented and applied to the first Tacoma Narrows Bridge. It is found that with relatively small effort the flutter stability of that bridge could have been substantially improved.</p>

Publisher

International Association for Bridge and Structural Engineering (IABSE)

Reference16 articles.

1. J. R. Richardson, The Development of the Concept of the Twin Suspension Bridge, National Maritime Institute, NMI R 125, Feltham, UK, 1981.

2. Bridge engineering and aerodynamics

3. U. Starossek, H. Aslan, "Passive control of bridge deck flutter using tuned mass dampers and control surfaces," 7th European Conference on Structural Dynamics –Eurodyn 2008, Southamp- ton, UK, 2008.

4. J. D. Raggett, "Stabilizing winglet pair for slender bridge decks," Bridges and Transmission Line Structures, ASCE Structures Congress, Orlando, Florida, 1987.

5. Gao Liu, Fanchao Meng, Xiuwei Wang, "Mechanism of flutter control of suspension bridge by winglets," 4th International Symposium on Computational Wind Engineering, Yokohama, Japan, 2006.