市政技术2025，Vol.43Issue(9)：1-9,9.DOI:10.19922/j.1009-7767.2025.09.001
考虑颤振导数不确定性的TMD颤振控制优化设计方法
Optimization Design of TMD for Flutter Control Based on the Uncertainty of Flutter Derivatives
摘要
Abstract
With the continuous increase of the bridge span,the issue of bridge flutter has become increasingly prominent.It's getting difficult to enhance bridge flutter performance by aerodynamic optimization of the bridge decks,which causes a gradual decline in the flutter safety factor of long-span bridges.Considering the harsh condi-tions,the passive mechanical devices were adopted to act as a supplementary measure for aerodynamic optimization has become a feasible solution to further improve the flutter performance of long-span bridges.However,due to the complexity of bridge flutter,the influence of flutter derivatives must be considered in the optimal design process to achieve the best control efficiency of the devices.Therefore,the study was conducted for the tuned mass dampers(TMD)of flutter control of bridges to propose TMD optimal design method based on the uncertainty of flutter deriva-tives.Taking a prototype bridge model as an example,the validity of the proposed method was verified and analyzed.The analysis results show that the flutter critical wind speed distribution of the bridge-TMD system,considering the uncertainty of flutter derivatives,is more concentrated than that of the deterministic optimization computation,indi-cating that the system has a lower risk of flutter failure and the stronger robustness.关键词
大跨桥梁/颤振控制/TMD/颤振导数不确定性/优化设计Key words
long-span bridge/flutter control/TMD/uncertainty of flutter derivative/optimal design分类
交通工程引用本文复制引用
任世明,许坤..考虑颤振导数不确定性的TMD颤振控制优化设计方法[J].市政技术,2025,43(9):1-9,9.基金项目
重点研发计划青年科学家项目(2022YFB2602500) （2022YFB2602500）
国家自然科学基金面上项目(52178447) （52178447）
