Vortex‐Induced Vibration Suppression of Bridges by Inerter‐Based Dynamic Vibration Absorbers

Abstract

The vortex-induced vibration may cause fatigue of a bridge structure, affecting the safety of vehicles and the comfort of pedestrians. Inerter is a two-terminal device, which has been applied in many areas. This paper studies the problem of suppressing the vortex-induced vibration of a bridge by using an inerter-based dynamic vibration absorber (IDVA). The performances in terms of the suspension travel and the vertical displacement of the bridge with different IDVAs in suppressing vortex-induced vibration are compared, and the effect of the installation position of IDVA on the performance of suppressing vortex-induced vibration is shown. The performance indexes for the vertical displacement of six IDVA arrangements are obtained by using an iterative method, where the performance indexes for the vertical displacement are minimized by using the optimization toolbox in a commercial software. The result shows that the optimal installation positions and the number of suitable installation positions are affected by the resonant mode. Among the six arrangements, one arrangement is identified to have the best performance of suppressing vortex-induced vibration. All the six arrangements have reduced the suspension travel performance.

Dynamical response of a cantilever beam under moving mass with fractional damping

“…Michaltsos [1] studied the dynamic response of the bridge under a moving load with constant speed, and the effect of the moving speed on the behaviour of the beam is investigated . Chen Hao et al [2] studied the vibration response of the axially moving cantilever beam and discussed the influence of related control parameters on vibration effect. Fang et al [3] established the coupled vibration equation to model the dynamics of the moving mass and cantilever beam, and then used the finite element method to derive the numerical results and analyze the dynamical response under different parameters.…”

An Analytical Dynamic Model for Vibration Suppression of a Multi-Span Continuous Bridge by Tuned Mass Dampers

“…For a single-span bridge system with TMDs, because of the simple structure of the single-span bridge, the trigonometric function can be directly selected as its mode function to obtain the dynamic model with low dimension and high accuracy. As a result, this model is frequently used to analyze how the TMDs on the bridge reduce vibration under different loads, such as moving load [1][2][3][4][5][6][7] and wind load [8][9][10][11][12][13]. Wang et al [1] analyzed the suppression impact of the TMD on bridge vibration caused by the train, and the findings indicate that the TMD has a good vibration suppression effect when the train is at resonance speed.…”

Research on Mechanism of Vortex-Induced Vibration Railing Effect of Double-Deck Large-Span Suspension Bridge

“…Aerodynamic measures modifying the cross-sectional shape of components or adding appendages that alter airflow patterns (e.g., stabilizer plates, deflector plates, and wind fairings) represent the most commonly employed method for suppressing bridge VIV [19]. This approach involves making small, cost-effective, highly reliable structural changes, making it the preferred method for VIV suppression [20][21][22][23].…”