Using tuned mass damper inerter to mitigate vortex-induced vibration of long-span bridges: Analytical study

Xu, Kun; Bi, Kaiming; Han, Qiang; Li, Xiaopeng

doi:10.1016/j.engstruct.2018.12.067

Cited by 140 publications

(52 citation statements)

References 40 publications

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“…Since then, different practical realizations of inerter have been proposed, including but not limited to those shown in Figure 2. 22 The concept of inertial system with the name of "inerter" further developed rapidly in mechanical engineering. In parallel, a Japanese team further developed and employed a two-terminal inertial system in civil engineering context, and a new era of explicitly mass amplification mechanisms emerged to improve the seismic performance of structures.…”

Section: Introductionmentioning

confidence: 99%

Statistical seismic performance assessment of tuned mass damper inerter

Kaveh

Farzam

Jalali

2020

Struct Control Health Monit

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Summary In this study, the robust optimum design of a recently developed passive control device, i.e., tuned mass damper inerter (TMDI) is investigated to control a 10‐story base‐excited shear building benchmark. The H2 and H∞ of three different objective functions (i.e., minimizing roof displacement, minimizing 7th‐story displacement, and maximizing the TMD stroke) are selected as objective functions for two different single and double inerter configurations. Optimum free vibration parameters of the TMDI (i.e., natural frequency and damping ratios) are calculated using a metaheuristic technique for two different structural damping values. Additionally, the performance of the optimum designed damper and its robustness under 25 far‐fault (FF) ground motions are assessed in the time domain with 12 different performance criteria (i.e., the mean and standard deviation of the maximum and norm of response histories for roof displacement, roof acceleration, and the total kinetic energy of the building). Based on current work, the best performance index for single TMDI for all three objective functions is the roof absolute acceleration, showing a maximum of 45% reduction in the mean maximum roof acceleration for 25 earthquake records. Therefore, the TMDI is most effective when the goal is to reduce the floor accelerations. The double inerter configuration shows approximately the same values for the performance indices for all three objective functions and demonstrates similar reduction for a single TMDI. However, it increases the robustness of the control method by adding redundancy and enhancing the performance for different combinations of inertance and mass ratios.

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Section: Introductionmentioning

confidence: 99%

Statistical seismic performance assessment of tuned mass damper inerter

Kaveh

Farzam

Jalali

2020

Struct Control Health Monit

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“…Alternatively, an inerter has the potential to provide similar negative stiffness without a stability problem [40]. Many inerter-based absorber layouts have been proposed, and their control performance advantages have been proven for civil engineering structures [41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59]. As for the vibration suppression of cables, typical inertial mass dampers (IMDs) [60][61][62][63][64][65] and tuned inerter dampers [66,67] were well developed, and their significant improvement on the achievable modal damping ratio of the cable was verified via both theoretical and experimental investigations.…”

Section: Introductionmentioning

confidence: 99%

Free Vibration of a Taut Cable with Two Discrete Inertial Mass Dampers

Yue

Gao

2019

Applied Sciences

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Recently, inertial mass dampers (IMDs) have shown superior control performance over traditional viscous dampers (VDs) in vibration control of stay cables. However, a single IMD may be incapable of providing sufficient supplemental modal damping to a super-long cable, especially for the multimode cable vibration mitigation. Inspired by the potential advantages of attaching two discrete VDs at different locations of the cable, arranging two external discrete IMDs, either at the opposite ends or the same end of the cable is proposed to further improve vibration mitigation performance of the cable in this study. Complex modal analysis based on the taut-string model was employed and extended to allow for the existence of two external discrete IMDs, resulting in a transcendental equation for complex wavenumbers. Both asymptotic and numerical solutions for the case of two opposite IMDs or the case of two IMDs at the same end of the cable were obtained. Subsequently, the applicability of asymptotic solutions was then evaluated. Finally, parametric studies were performed to investigate the effects of damper positions and damper properties on the control performance of a cable with two discrete IMDs. Results showed that two opposite IMDs can generally provide superior control performance to the cable over a single IMD or two IMDs at the same end. It was also observed that attaching two IMDs at the same end of the cable had the potential to achieve significant damping improvement when the inertial mass of the IMDs is appropriate, which seems to be more promising than two opposite IMDs for practical application.

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“…It was found that TMDI is more effective than TMD, and the inclusion of the inerter can dramatically reduce the TMD stroke. Very recently, Xu et al applied TMDI to control VIV of long‐span bridges. The control performance and robustness (the control efficiency against the deviation of design parameters from their optimal values) of the TMDI system were investigated and compared with that of the conventional TMD system.…”

Section: Introductionmentioning

confidence: 99%

“…As discussed above, the effectiveness of one combination of IBD, namely TMDI, was adopted to control the VIV of long‐span bridges in Xu et al In fact, the inerter, spring, and dashpot can have different combinations as discussed, and each combination may have different effectiveness. The aim of the present study is to investigate the effectiveness of different IBDs to control the VIV of long‐span bridges and identify the most effective and practical way in the design.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2020

Struct Control Health Monit

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Summary Inerter‐based dampers (IBDs) have been proposed to enhance the efficiency of conventional tuned mass dampers (TMDs) in controlling wind‐induced vibration of civil structures recently. In this paper, four different IBDs, with each featuring a specific combination of dashpot–spring elements in series or in parallel with the inerter device, are applied to control the vortex‐induced vibration (VIV) of long‐span bridges. The governing equations of the bridge–IBD system under the effect of VIV are established, and the strategy to optimize the IBD parameters is proposed. The performances of different IBDs in terms of mitigating the VIV response of the deck, the stroke of mass block, the static deformation of spring due to gravity, the reaction force of IBDs on the bridge deck, and the robustness of the system (the control efficiency against the deviation of design parameters from their optimal values) are systematically evaluated and compared. Through this comparative study, the superiorities of IBDs to conventional TMDs in bridge VIV control are illustrated, and two feasible layouts of IBDs that are suitable for bridge VIV control are suggested. On the basis of these results, the guideline for VIV‐resistance design of long‐span bridges with the help of IBDs is also proposed.

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Using tuned mass damper inerter to mitigate vortex-induced vibration of long-span bridges: Analytical study

Cited by 140 publications

References 40 publications

Statistical seismic performance assessment of tuned mass damper inerter

Statistical seismic performance assessment of tuned mass damper inerter

Free Vibration of a Taut Cable with Two Discrete Inertial Mass Dampers

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

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