Influences of Attack Angles on Aerodynamic Derivatives and Flutter Characteristics of Flat Box Girders

XING Wenbo; SHEN Huoming; WU Bo; LIAO Haili

doi:10.21656/1000-0887.430394

Volume 44 Issue 2

Feb. 2023

Turn off MathJax

Article Contents

Article Navigation > Applied Mathematics and Mechanics > 2023 > 44(2): 178-190

XING Wenbo, SHEN Huoming, WU Bo, LIAO Haili. Influences of Attack Angles on Aerodynamic Derivatives and Flutter Characteristics of Flat Box Girders[J]. Applied Mathematics and Mechanics, 2023, 44(2): 178-190. doi: 10.21656/1000-0887.430394

Citation:

PDF( 7167 KB)

Influences of Attack Angles on Aerodynamic Derivatives and Flutter Characteristics of Flat Box Girders

doi: 10.21656/1000-0887.430394

XING Wenbo^1
,,
SHEN Huoming¹,
WU Bo^{2
,
,},
LIAO Haili²

1.
School of Mechanics and Aerospace Engineering, Southwest Jiaotong University, Chengdu 611756, P.R.China
2.
Department of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, P.R.China

Received Date: 2022-12-18
Rev Recd Date: 2023-02-19

Available Online: 2023-02-28

Publish Date: 2023-02-15

Abstract

Abstract

The flutter responses of the Nanjing No.4 bridge flat box girder under different wind attack angles were tested in detail through sectional model tests. The evolution of unsteady and steady critical amplitudes at different wind speeds was discussed. Based on the amplitude envelope of the flutter response and the Hilbert transform, the amplitude-dependent modal damping of the system was identified, and the mechanism of the flutter mode change with the wind angle of attack was initially explained. Secondly, the modal parameters of the system under different wind attack angles were extracted. With the bimodal coupled flutter analysis method, the nonlinear flutter derivatives of the section under different wind attack angles were identified, and the change law for the amplitude dependence of the key flutter derivatives on the wind attack angle and the potential influence on the section flutter morphology and characteristics, were studied. Finally, the effects of the wind attack angle on the uncoupled and coupled aerodynamic damping were analyzed through analyses of the modal damping subterms one by one, and the dynamic mechanism of the differential flutter performance caused by fractional damping was illustrated.
- flat box girder,
- soft flutter,
- flutter derivative,
- aerodynamic damping

FullText(HTML)

References(24)

References

[1]	SCANLAN R. Amplitude and turbulence effects on bridge flutter derivatives[J]. Engineering Structures, 1997, 123(2): 232-236. doi: 10.1061/(ASCE)0733-9445(1997)123:2(232)
[2]	NODA M, UTSUNOMIYA H, NAGAO F, et al. Effects of oscillation amplitude on aerodynamic derivatives[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2003, 91(1): 101-111.
[3]	XU F, YING X, ZHANG Z. Effects of exponentially modified sinusoidal oscillation and amplitude on bridge deck flutter derivatives[J]. Journal of Bridge Engineering, 2016, 21(5): 06016001. doi: 10.1061/(ASCE)BE.1943-5592.0000884
[4]	ZHANG M, XU F, YING X. Experimental investigations on the nonlinear torsional flutter of a bridge deck[J]. Journal of Bridge Engineering, 2017, 22(8): 04017048. doi: 10.1061/(ASCE)BE.1943-5592.0001082
[5]	ZHOU R, GE Y J, YANG Y X, et al. Wind-induced nonlinear behaviors of twin-box girder bridges with various aerodynamic shapes[J]. Nonlinear Dynamics, 2018, 94: 1095-1115. doi: 10.1007/s11071-018-4411-y
[6]	WU B, CHEN X Z, WANG Q, et al, Characterization of vibration amplitude of nonlinear bridge flutter from section model to full bridge estimation[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2019, 197: 1040487.
[7]	张博, 史天姿, 张贻林, 等. 旋转输液管动力稳定性理论分析[J]. 应用数学和力学, 2022, 43(2): 166-175 ZHANG Bo, SHI Tianzi, ZHANG Yilin, et al. Theoretical analysis on dynamic stability of rotating pipes conveying fluid[J]. Applied Mathematics and Mechanics, 2022, 43(2): 166-175.(in Chinese)
[8]	黄国庆, 彭留留, 廖海黎, 等. 普立特大桥桥位处山区风特性实测研究[J]. 西南交通大学学报, 2016, 51(2): 349-356 HUANG Guoqing, PENG Liuliu, LIAO Haili, et al. Field measurement study on wind characteristics at Puli great bridge site in mountainous area[J]. Journal of Southwest Jiaotong University, 2016, 51(2): 349-356.(in Chinese)
[9]	于舰涵, 李明水, 廖海黎. 山区地形对桥位风场影响的数值模拟[J]. 西南交通大学学报, 2016, 51(4): 654-662 YU Jianhan, LI Mingshui, LIAO Haili. Numerical simulation of effect of mountainous topography on wind field at bridge site[J]. Journal of Southwest Jiaotong University, 2016, 51(4): 654-662.(in Chinese)
[10]	赵林, 吴风英, 潘晶晶, 等. 强台风登陆过程大跨桥梁风特性特征及其抖振响应分析[J]. 空气动力学学报, 2016, 39(4): 654-662 ZHAO Lin, WU Fengying, PAN Jingjing, et al. Wind field characteristics and wind-induced buffeting response of a long-span bridge during the landing of a strong typhoon[J]. Acta Aerodynamica Sinica, 2016, 39(4): 654-662.(in Chinese)
[11]	朱乐东, 朱青, 郭震山. 风致静力扭角对桥梁颤振性能影响的节段模型试验研究[J]. 振动与冲击, 2011, 30(5): 23-26 ZHU Ledong, ZHU Qing, GUO Zhenshan. Effect of wind-induced static torsional angle on flutter performance of bridges via sectional model test[J]. Journal of Vibration and Shock, 2011, 30(5): 23-26.(in Chinese)
[12]	欧阳克俭, 陈政清. 附加攻角效应对颤振稳定性能影响[J]. 振动与冲击, 2015, 34(2): 45-49 OUYANG Kejian, CHEN Zhenqing. Influence of static wind additive attack angle on flutter performance of bridges[J]. Journal of Vibration and Shock, 2015, 34(2): 45-49.(in Chinese)
[13]	伍波, 王骑, 廖海黎, 等. 双层桥面桁架梁软颤振特性风洞试验研究[J]. 振动与冲击, 2020, 39(1): 191-198 WU Bo, WANG Qi, LIAO Haili, et al. Wind tunnel tests for soft flutter characteristics of double-deck truss girder[J]. Journal of Vibration and Shock, 2020, 39(1): 191-198.(in Chinese)
[14]	伍波, 王骑, 廖海黎, 等. 不同风攻角下薄平板断面颤振机理研究[J]. 振动工程学报, 2020, 33(4): 667-678 WU Bo, WANG Qi, LIAO Haili, et al. Flutter mechanism of thin plate section under different wind attack angles[J]. Journal of Vibration Engineering, 2020, 33(4): 667-678.(in Chinese)
[15]	李志国, 王骑, 伍波, 等. 不同攻角下扁平箱梁颤振机理[J]. 西南交通大学学报, 2018, 53(4): 687-695 LI Zhiguo, WANG Qi, WU Bo, et al. Flutter mechanism of flat box girder under different attack angles[J]. Journal of Southwest Jiaotong University, 2018, 53(4): 687-695.(in Chinese)
[16]	伍波, 王骑, 廖海黎. 扁平箱梁颤振后状态的振幅依存性研究[J]. 中国公路学报(自然科学版), 2019, 32(10): 96-106 WU Bo, WANG Qi, LIAO Haili. Characteristics of amplitude dependence of a flat box grider in a post-flutter state[J]. China Journal of Highway and Transport, 2019, 32(10): 96-106.(in Chinese)
[17]	XU F, YANG J, ZHANG M, et al. Experimental investigations on post-flutter performance of a bridge deck sectional model using a novel testing device[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2021, 217: 104752. doi: 10.1016/j.jweia.2021.104752
[18]	LI K, HAN Y, CAI C S, et al. Experimental investigation on post-flutter characteristics of a typical steel-truss suspension bridge deck[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2021, 216: 104724. doi: 10.1016/j.jweia.2021.104724
[19]	邓正科, 孙测世, 杨汝东. 不同索力斜拉索的主共振瞬时相频特性[J]. 应用数学和力学, 2021, 42(10): 1126-1135 DENG Zhengke, SUN Ceshi, YANG Rudong. Transient primary resonance phase-frequency characteristics of stay cables with different tensions[J]. Applied Mathematics and Mechanics, 2021, 42(10): 1126-1135.(in Chinese)
[20]	SCANLAN R H, TOMKO J J. Airfoil and bridge deck flutter derivatives[J]. Journal of the Engineering Mechanics Division, 1971, 97(6): 1717-1737.
[21]	MATSUMOTO M. Aerodynamic damping of prisms[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1971, 56: 159-175.
[22]	MATSUMOTO M, KOBAYASHI Y, SHIRATO H. The influence of aerodynamic derivatives on flutter[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1996, 60: 227-239. doi: 10.1016/0167-6105(96)00036-0
[23]	WANG Y F, CHEN X Z, LI Y L. Nonlinear self-excited forces and aerodynamic damping associated with vortex-induced vibration and flutter of long span bridges[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2020, 204: 104207. doi: 10.1016/j.jweia.2020.104207
[24]	CHEN X. Analysis of crosswind fatigue of wind-excited structures with nonlinear aerodynamic damping[J]. Engineering Structures, 2014, 74: 145-156. doi: 10.1016/j.engstruct.2014.04.049