桥梁断面颤振导数的分状态多频强迫振动识别

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振动与冲击 ›› 2018, Vol. 37 ›› Issue (20) : 15-23.

论文

王林凯1,2, 刘志文2，陈政清2

作者信息 +

Identification of flutter derivatives of bridge deck sections by step-by-step forced vibration with multi frequencies

WANG Linkai1,2,LIU Zhiwen2,CHEN Zhengqing2

Author information +

文章历史 +

摘要

为提高桥梁断面颤振导数的识别精度与效率，采用计算流体动力学方法建立了桥梁断面颤振导数分状态多频强迫振动识别方法，分别采用传统的弯扭耦合强迫振动识别法与分状态多频气动导数识别方法，对薄平板和大带东桥主梁断面的气动导数进行了识别，将两种方法对应的气动导数识别结果分别与已有文献结果进行了比较。结果表明：采用分状态多频强迫振动方法进行主梁断面气动导数识别精度与弯扭耦合强迫振动气动导数识别精度相当，但识别效率得到明显的提升。

Abstract

For accurate and efficient identification of flutter derivatives of bridge sections, a new step-by-step forced vibration with multi-frequency method was established using the computational fluid dynamics method.The flutter derivatives of a thin plate and the girder section of the Great Belt East Bridge were identified by this new method and the traditional coupled forced vibration in bending and torsion method.The results calculated agree well with relevant existing literature and the experimental research.The results show that the new method can achieve the same level of accuracy as the coupled forced vibration method while improves the identification efficiency significantly.

导出引用

王林凯1,2, 刘志文2，陈政清2. 桥梁断面颤振导数的分状态多频强迫振动识别[J]. 振动与冲击, 2018, 37(20): 15-23

WANG Linkai1,2,LIU Zhiwen2,CHEN Zhengqing2. Identification of flutter derivatives of bridge deck sections by step-by-step forced vibration with multi frequencies[J]. Journal of Vibration and Shock, 2018, 37(20): 15-23

参考文献

[1] Scanlan R H. Airfoil and bridge deck flutter derivatives[J]. Journal of ASCE, 1971, 6:1717-1737.
[2] Poulsen N K, Damsgaard A, Reinhold T A. Determination of flutter derivatives for the great belt bridge[J]. Journal of Wind Engineering & Industrial Aerodynamics, 1992, 41(1–3):153-164.
[3] Sarker P P, Jones N P, Scanlan R H, et al. Identification of aeroelastic parameters of flexible bridges[J]. EM8, 1994, ASCE:1718-1741.
[4] Yamada H, Miyata T, Ichikawa H. Measurement of Aerodynamic Coefficients by System identification methods[J]. Journal of Wind Engineering & Industrial Aerodynamics, 1992, 42(1-3):1255-1263.
[5] 张若雪. 桥梁结构气动参数识别的理论和试验研究[D]. 同济大学, 1998.
Zhang Ruoxue. Theoretical and experimental study on identification of aerodynamic derivatives of bridge decks[D], 1998.
[6] 祝志文, 顾明. 基于自由振动响应识别颤振导数的特征系统实现算法[J]. 振动与冲击, 2006, 25(5):28-31.
Zhu Zhiwen, Gu Ming. Identification of flutter derivatives by using Eigen system Realization Algorithm. 2006, 25(5):28-31.
[7] 丁泉顺, 王景, 朱乐东. 桥梁断面颤振导数识别的耦合自由振动方法[J]. 振动与冲击, 2012, 31(24):5-8.
Ding Quan-shun, Wang Jing, Zhu Le-dong. Coupled free vibration for identifying flutter derivatives of bridges decks. Journal of vibration and shock,2012, 31(24):5-8.
[8] Xu F, Zhu L, Ge X, et al. Some new insights into the identification of bridge deck flutter derivatives[J]. Engineering Structures, 2014, 75(8):418-428.
[9] Halfman R L. Experimental aerodynamic derivatives of a sinusoidally oscillating airfoil in two-dimensional flow. Supersedes NACA TN 2465,19(51):1-6.
[10] Ukeguchi N, Sakata H, Nishitani H. An investigation of aeroelastic instability of suspension bridges[C]. Proc. of Int. symp. On suspension, Lisbon, 1966:273- 284.
[11] Li Q C. Measuring Flutter Derivatives for Bridge Sectional Models in Water Channel[J]. Journal of Engineering Mechanics, 1996, 121(1):90-101.
[12] 陈政清, 于向东. 大跨桥梁颤振自激力的强迫振动法研究[J]. 土木工程学报, 2002, 35(5):34-41.
Chen Zhengqing, Yu Xiangdong. A new method for measuring self-exited forces of long-span bridge[J].China Civil EngineeringJournal, 2002, 35(5):34-41.
[13] 郭震山. 桥梁断面气动导数识别的三自由度强迫振动法[D]. 同济大学, 2006.
Guo Zhenshan. Three degree-of-freedom forced vibration method for identification of aerodynamic derivatives of bridge decks[D]. TongJi University,2006.
[14] 牛华伟. 气动导数识别的三自由度强迫振动法及颤振机理研究[D]. 湖南大学, 2007.
Niu Huawei. The research on three degree-of-freedom forced vibration method for identification of aerodynamic derivatives and flutter mechanism[D]. Hunan University, 2007.
[15] Larsen A, Walther J H. Aeroelastic analysis of bridge girder sections based on discrete vortex simulations[J]. Journal of Wind Engineering & Industrial Aerodynamics, 1997, 67(97):253-265.
[16] 黄林. 列车风与自然风联合作用下的车-桥耦合振动分析[D]. 西南交通大学, 2007.
Hua Lin. Analysis of vehicle-bridge vibration under train induced wind and natural wind[D]. Southeast Jiaotong University, 2007.
[17] 祝志文, 夏昌. 基于两种湍流模型的桥梁颤振导数识别研究及比较[J]. 湖南大学学报(自科版), 2010, 37(11):6-11.
Comparative study of two turbulent models based on the identification of flutter derivatives of bridge[J] Journal of Hunan University(Nature Science), 2010, 37(11):6-11.
[18] Stefano de Miranda, Luca Patruno, Francesco Ubertin et al. On the identiﬁcation of ﬂutter derivatives of bridge decks via RANS turbulence models: Benchmarking on rectangular prisms[J]. Engineering Structures, 2014, 76:359-370.
[19] Anina Šarkić, Rüdiger Höffe, Stanko Brčić. Numerical simulations and experimental validations of force coefficients and flutter derivatives of a bridge deck[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2015, 144:172-182
[20] 崔益华, 陈国平. 桥梁颤振导数的耦合强迫振动仿真识别[J]. 振动工程学报, 2007, 20(1):35-39.
Simulation for identification of flutter derivatives of bridge section using the coupled-forced-vibration method[J]. Journal of Vibration Engineering, 2007, 20(1):35-39
[21] 祝志文, 顾明, 陈政清. 指数脉冲强迫激励CFD模型运动的气动参数识别法[J]. 振动工程学报, 2007, 20(2):133-139.
Zhu Zhiwen, Gu Ming, Chen Zhengqing. System identification of aerodynamic parameters based on CFD modeling and exponential pulse excitation[J]. Journal of Vibration Engineering, 2007, 20(2):133-139.
[22] Boussinesq J, Essai sur la theorie des eaux couarantes. Memories presents par divers savants a l’ Academie des Sciences, 1877, 23(1):1-680
[23] Menter F R. Two-equation eddy-viscosity turbulence models for engineering applications[J]. Aiaa Journal, 1994, 32(8):1598-1605.
[24] 李永乐, 汪斌, 黄林,等. 薄平板气动力的CFD模拟及参数研究[J]. 工程力学, 2009, 26(3):207-211.
Li Yong-le, Wang Bin Huang Lin. et al. CFD simulation and parameter study on aerodynamic force of flat plate[J]. Engineering Mechanics, 2009, 26(3):207-211.
[25] 祝志文. 基于二维RANS模型计算扁平箱梁漩涡脱落的可行性分析[J]. 中国公路学报, 2015, 28(6):24-33.
Zhu zhiwen. Feasibility investigation on prediction of vortex shedding of plat box girders based on 2D RANS model. China Journal of Highway and Transport, 2015, 28(6):24-33.
[26] 祝志文, 袁涛, 陈政清,等. 基于CFD仿真的薄平板非线性气动力系统特征研究[J]. 湖南大学学报:自然科学版, 2017(1):32-38.
Zhu Zhiwen, Yuan Tao, Chen Zhenqing, et al. Investigation on characteristics of nonlinear aerodynamic system of thin plate based CFD simulation[J]. Journal of Hunan University(Natural Sciences) , 2017(1):32-38.