Vibration phase difference analysis of long-span suspension bridge during flutter

L Wu, JW Ju, J Zhang, M Zhang, Y Li - Engineering Structures, 2023 - Elsevier
The research on vibration characteristics of long-span bridges is of great importance to
flutter analysis, yet the literature is limited which concerns the phase difference characteristic …

Vortex‐induced vibration measurement of a long‐span suspension bridge through noncontact sensing strategies

J Zhang, L Zhou, Y Tian, S Yu, W Zhao… - Computer‐Aided Civil …, 2022 - Wiley Online Library
Long‐span bridges are susceptible to vortex‐induced vibration (VIV), which affects the
serviceability and safety of bridges when the vibration amplitude is too large and lasts for a …

Numerical study on self-excited forces and flow fields for a thin plate under a sinusoidal non-stationary wind condition

P Hu, Y Tang, Y Han, CS Cai, N Yan, F Zhang - Physics of Fluids, 2023 - pubs.aip.org
The self-excited forces and flow fields around a thin plate under stationary and sinusoidal
non-stationary wind conditions were simulated using the computational fluid dynamics …

A nonlinear numerical scheme to investigate the influence of geometric nonlinearity on post-flutter responses of bridges

K Li, Y Han, CS Cai, W Zhang, J Song, H Yan - Nonlinear Dynamics, 2024 - Springer
The present study aims to investigate the influence of geometric nonlinearity on post-flutter
responses by developing a full-mode coupled nonlinear flutter analysis method (frequency …

Multimode coupled nonlinear flutter analysis for long-span bridges by considering dependence of flutter derivatives on vibration amplitude

B Wu, H Liao, H Shen, Q Wang, H Mei, Z Li - Computers & Structures, 2022 - Elsevier
This study presents a multimode coupled nonlinear flutter analysis method for long-span
bridges with consideration of vibration-amplitude-dependent flutter derivatives. By …

Identification of the form of self-excited aerodynamic force of bridge deck based on machine learning

S Laima, Z Zhang, X Jin, W Li, H Li - Physics of Fluids, 2024 - pubs.aip.org
This paper introduces an intelligent identification method for self-excited aerodynamic
equations. The method is based on advanced sparse recognition technology and equipped …

Effects of vertical central stabilizers on nonlinear wind-induced stabilization of a closed-box girder suspension bridge with various aspect ratios

R Zhou, Y Ge, Y Yang, Q Liu, H Zhou, L Zhang - Nonlinear Dynamics, 2023 - Springer
The aerodynamic shape of a closed-box girder plays an important role in the wind-induced
stabilization of long-span suspension bridges. The purpose of this study is to investigate the …

Experimental investigation of post-flutter properties of a suspension bridge with a π-shaped deck section

Z Zhang, Z Wang, J Zeng, L Zhu, Y Ge - Journal of Fluids and Structures, 2022 - Elsevier
Paralleled experimental tests of a full-bridge model and a sectional model are conducted to
investigate nonlinear post-flutter properties of a suspension bridge, including structural …

Identification of amplitude-dependent damping ratio and flutter derivatives of a streamlined box girder under various wind angles of attack

B Wu, H Shen, H Liao, Q Wang, J Liu - Journal of Bridge …, 2023 - ascelibrary.org
This study presents a comprehensive investigation on the characteristics of the aerodynamic
damping and amplitude-dependent flutter derivatives of a streamlined box girder for various …

A new concept reduced scale aeroelastic model of the four-cable suspension bridge with truss girder and its validation

Y Lan, Y Yang, J Zhang, Y Ge - Journal of Wind Engineering and Industrial …, 2024 - Elsevier
The accuracy of the aeroelastic model or truss girders has consistently been a decisive
factor influencing the results of full-bridge aeroelastic wind tunnel tests. A novel design …