Eccentric- wing flutter stabilizer for long-span bridges

被引：3
|
作者：
Starossek, Uwe [1 ]
机构：
[1] Hamburg Univ Technol TUHH, Struct Anal & Steel Struct Inst, Denickestr 17, D-21073 Hamburg, Germany
来源：
BRIDGE STRUCTURES | 2016年 / 12卷 / 1-2期
关键词：
Flutter; fixed wing; passive aerodynamic device; numerical study; wind tunnel test;
D O I：
10.3233/BRS-160098
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
An aerodynamic device for preventing bridge flutter is presented. It consists of wings positioned along the sides of, and fixed relative to, the bridge deck. Flutter suppression efficiency is high provided the lateral eccentricity of the wings is large. It is a passive device without moving parts. This is an advantage over active or passive devices with moving parts, which meet resistance due to reliability concerns. Results of a numerical study are presented in which the critical wind speed for flutter onset of a bridge without wings and with wings mounted in various configurations was determined. Furthermore, first results of wind tunnel tests are reported and a cost estimate is given.
引用
收藏
页码：3 / 9
页数：7
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