多气动措施协同作用下流线型箱梁颤振抑振研究

张佳文; 曾旸凌; 彭艳; 徐飞鸿

doi:10.19713/j.cnki.43-1423/u.T20251343

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多气动措施协同作用下流线型箱梁颤振抑振研究

桥梁隧道与结构 | 更新时间：2026-07-24

- 多气动措施协同作用下流线型箱梁颤振抑振研究
- Flutter suppression of streamlined box girders under collaborative effect of multiple aerodynamic measures
- 铁道科学与工程学报 2026年23卷第7期页码：3339-3352
- 作者机构：
  
  1.吉首大学智能建造学院，湖南张家界 427000
  2.长沙理工大学土木工程与建筑学院，湖南长沙 410114
- 作者简介：
  
  张佳文(1983—)，男，湖南长沙人，讲师，博士，从事桥梁抗风研究；E-mail：57128498@qq.com
- 基金信息：
  
  湖南省自然科学基金资助项目(2023JJ30492;2021JJ30557);湖南省教育厅科学研究项目(23B0508);吉首大学人才引进科研资助项目(JD21120);吉首大学创新创业项目(JDCX2023955)
- DOI：10.19713/j.cnki.43-1423/u.T20251343
  中图分类号： U441.3
- 收稿：2025-08-28，
  
  网络首发：2026-07-24，
  
  纸质出版：2026-07-28
- 稿件说明：
移动端阅览
张佳文,曾旸凌,彭艳等.多气动措施协同作用下流线型箱梁颤振抑振研究[J].铁道科学与工程学报,2026,23(07):3339-3352.

ZHANG Jiawen,ZENG Yangling,PENG Yan,et al.Flutter suppression of streamlined box girders under collaborative effect of multiple aerodynamic measures[J].Journal of Railway Science and Engineering,2026,23(07):3339-3352.
张佳文,曾旸凌,彭艳等.多气动措施协同作用下流线型箱梁颤振抑振研究[J].铁道科学与工程学报,2026,23(07):3339-3352. DOI： 10.19713/j.cnki.43-1423/u.T20251343.

ZHANG Jiawen,ZENG Yangling,PENG Yan,et al.Flutter suppression of streamlined box girders under collaborative effect of multiple aerodynamic measures[J].Journal of Railway Science and Engineering,2026,23(07):3339-3352. DOI： 10.19713/j.cnki.43-1423/u.T20251343.

摘要

传统被动气动措施难以满足大跨度悬索桥的抑振需求，主动气动翼板可作为提高超大跨度桥梁颤振控制效果的一种有效措施。针对主动气动翼板的流线型箱梁断面颤振主动控制规律尚未清晰认识的问题，有必要研究主动、被动等多种气动措施协同工作对流线型箱梁颤振性能的影响。基于计算流体动力学(computational fluid dynamics

CFD)数值模拟，以丹麦大贝尔特东桥为研究对象，综合考虑中央稳定板与导流板等措施，系统研究了主动控制气动翼板与中央稳定板组合应用对流线型箱梁颤振性能的影响及其抑振机理。详细分析了组合措施协同作用下主梁周围流场的变化，以及这种变化对系统扭转耦合运动阻尼的影响，揭示了气动翼板和中央稳定板提升颤振稳定性的作用机制。结果表明，改变中央稳定板的高度会显著影响主梁-翼板系统颤振导数的变化趋势。在采用主动控制措施时，被动抑振措施(如稳定板)的优化配置同样关键。通过组合措施，确定了组合措施下的最佳稳定板高度配置。无导流板时，上中央稳定板高度为0.9～1.2 m，下中央稳定板高度为1.1～1.3 m；增设导流板后，上、下中央稳定板高度范围分别为0.9～1.3 m和0.9～1.2 m。结果表明，该组合策略可有效提升主梁颤振性能。最后从主梁颤振抑振的控制规律出发，解释了组合气动措施下系统颤振抑振机理。研究结果能为大跨度桥梁抗颤振设计提供依据，也能为同类桥梁抗风设计提供参考。

Abstract

Traditional passive aerodynamic measures are often inadequate to meet the vibration suppression requirements of long-span suspension bridges. Active aerodynamic flaps can serve as an effective measure to enhance flutter control for super-long-span bridges. However

the active control mechanisms of streamlined box girder sections using active aerodynamic flaps have not yet been clearly understood. Therefore

it is necessary to investigate their impact on the flutter performance of streamlined box girders. Based on computational fluid dynamics (CFD) numerical simulations

using the Danish Great Belt East Bridge as the research object

and comprehensively considering measures such as central stabilizers and guide vanes

this study systematically investigated the impact of combining active control aerodynamic flaps with central stabilizers on the flutter performance of streamlined box girders and their vibration suppression mechanisms. The changes in the flow field around the girder under the synergistic effect of combined measures were analyzed in detail. Then this paper discussed how these changes affect the damping of the torsional coupling motion of the system. It could reveal the mechanism by which aerodynamic flaps and central stabilizers enhance flutter stability. It is found that altering the height of the central stabilizer significantly impacts the variation trend of flutter derivatives in the main girder-winglet system. This indicates that while employing active control measures

the optimal configuration of passive flutter suppression measures (such as stabilizers) remains crucial. Through parametric optimization

the optimal height configurations for the stabilizers under combined measures are determined. Without a deflector

the upper central stabilizer height is 0.9～1.2 m and the lower is 1.1～1.3 m. With a deflector added

the upper and lower central stabilizer heights are 0.9～1.3 m and 0.9～1.2 m

respectively. The results demonstrate that this combined strategy can effectively improve the flutter performance of the main girder. Finally

based on the control principles of flutter suppression for the main girder

the mechanism of system flutter suppression under combined aerodynamic measures is explained. The findings can provide a theoretical basis for the anti-flutter design of long-span bridges and serve as a reference for wind-resistant design of similar bridges.

关键词

Keywords

references

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