Performance evaluation of inerter‐based dampers for vortex‐induced vibration control of long‐span bridges: A comparative study

Xu, Kun; Bi, Kaiming; Ge, Yaojun; Zhao, Lin; Han, Qiang; Han, Qiang

doi:10.1002/stc.2529

Cited by 35 publications

(11 citation statements)

References 38 publications

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“…It was found that the performance of the C1 arrangement in suppressing vortex-induced vibration was inferior to the traditional arrangement in [21], consistent with the conclusion in [23]. In 2020, Xu et al [25] compared the performance of C2-C4 arrangements in suppressing vortex-induced vibration.…”

Section: Introductionmentioning

confidence: 62%

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

Chen

2021

Shock and Vibration

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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.

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Section: Introductionmentioning

confidence: 62%

“…where Y(jω) is the admittance function of any IDVA and j � �� − 1 √ . Substitute ( 6) into (25), and multiply both sides of the equation by ϕ i (x), and then integrate x from 0 to L. After a dimensionless calculation process, one can obtain…”

Section: E Optimal Installation Position Of the Idvamentioning

confidence: 99%

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

Chen

2021

Shock and Vibration

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“…Meanwhile, compared to the large one-terminal mass in the isolation system, the inerter system does not need much installation space or actual physical mass [31]. To date, utilizing the superiorities of enhancement mechanisms and two-terminal fexible installation, the inerter system has been applied in various aboveground civil engineering structure forms, such as buildings [32], bridges [33], wind turbine towers [34], storage tanks [35], and suspension cables [36]. Multiple experiments [24,25] and engineering projects [25,37] demonstrated its good vibration mitigation efect and comprehensive applicability.…”

Section: Introductionmentioning

confidence: 99%

Seismic Performance of an Underground Structure with an Inerter-Based Isolation System

Chen

Zhang

et al. 2023

Structural Control and Health Monitoring

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Existing isolation methods for seismic control of underground structures show that increasing the energy dissipation effect for isolation bearings tends to unfavorably add the relative deformation and force responses of the isolated columns. Exploring high-performance energy dissipaters is necessary for simultaneously controlling multiple performance indices of isolated underground structures. In this study, an inerter-based isolation system installed in a subway station is proposed to isolate columns and dissipate input energy benefited by its mass amplification and damping enhancement mechanisms. The inerter is a two-terminal relative-acceleration-related inertial device that can adjust structural inertial properties but scarcely increase actual physical mass. A method for the development of the user-defined inerter element is proposed and used because of the absence of inerter elements in existing finite element software. Then, the soil-underground structure model is established to simulate a typical subway station with the inerter-based isolation system used at the top of the column. Parameter studies together with design cases are conducted under horizontal and vertical input excitations with different frequency components. The results show that the inerter-based system can simultaneously control multiple performance indices of the subway station, including the relative deformation, shear force, bending moment of the central column, and the horizontal relative deformation of the isolation layer. Meanwhile, the inerter-based system can realize the high-efficiency energy dissipation control effect with low demands for damping due to the damping enhancement. A large proportion of energy is first absorbed by the inerter and then reserved by the kinetic and potential energy of the inerter-based system. Therefore, the proposed inerter-based isolation system is effective for enhancing columns and reducing lateral dynamic responses, which can prevent underground structures from collapsing.

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“…Dai et al 34 investigated the effect of inerter span length of TMDI, indicating that the control efficiency increases as inerter spans longer girder length. Furthermore, Xu et al 35 compared different layouts of inerter‐based dynamic vibration absorbers for bridge VIV control. Dai et al 36 utilized a maxwell element to replace the liner dashpot in TMDI and examined its performance in bridge VIV control.…”

Section: Introductionmentioning

confidence: 99%

Closed‐form design formulas of TMDI for suppressing vortex‐induced vibration of bridge structures

Dai

et al. 2022

Structural Contr & Hlth

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Tuned mass damper inerter (TMDI) is a promising device for structural vibration control. Existing design formulas for TMDI are derived based on an undamped single-degree-of-freedom primary structure. When applied to vortex-induced vibration (VIV) control of bridges, it may lead to a suboptimal design of TMDI, since VIV is characterized by nonlinear aeroelastic effect and sensitive to the structural damping. This study proposes closed-form design formulas of TMDI that are suitable for VIV control of bridges. Governing equations of the bridge-TMDI system are first established in modal coordinate. Based on these equations, the equivalent damping of TMDI to the bridge is derived. Then, the design formulas for TMDI frequency and damping ratio with predetermined TMDI mass, inertance, and inerter arrangement are developed to achieve the required equivalent damping of TMDI. The reliability of the proposed formulas is validated by utilizing the wind tunnel experimental data of a bridge. It is found that the effect of TMDI to the bridge can be treated as an increase of the structural damping. It is also found that the TMDI parameters will betray the optimum values if the VIV force model fails to correctly predict the required equivalent damping of TMDI. To eliminate this disadvantage, some design suggestions are presented. The comparison with existing TMDI design formulas and discussions on the application scope of the proposed formulas are also conducted. The proposed formulas can achieve a better control efficiency for the same predetermined TMDI parameters and have high accuracy within the scope of practical engineering applications.

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Performance evaluation of inerter‐based dampers for vortex‐induced vibration control of long‐span bridges: A comparative study

Cited by 35 publications

References 38 publications

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

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

Seismic Performance of an Underground Structure with an Inerter-Based Isolation System

Closed‐form design formulas of TMDI for suppressing vortex‐induced vibration of bridge structures

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