Viscous inertial mass damper (VIMD) for seismic responses control of the coupled adjacent buildings

Lu, Lei; Xu, Jiaqi; Zhou, Ying; Liu, Wensheng; Spencer, Billie F.

doi:10.1016/j.engstruct.2021.111876

Cited by 25 publications

(5 citation statements)

References 44 publications

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“…Te damper characteristics and control performance have been investigated under random excitations [4,5], pulse-like excitations [6], and earthquake excitations [7][8][9][10]. Furthermore, the efectiveness of the negative stifness devices has been systematically analyzed for high buildings [11][12][13][14][15][16], bridges [17][18][19], cables [20,21], and ocean structures [22,23]. Among them, the NSD and ID for cables have attracted strong attention because of their high efciency.…”

Section: Introductionmentioning

confidence: 99%

Vibration Mitigation of Sagged Cables Using a Viscous Inertial Mass Damper: An Experimental Investigation

Dong

Duan

et al. 2023

Structural Control and Health Monitoring

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In this paper, we describe the design and manufacturing of a viscous inertial mass-damper (VIMD) prototype. The damper parameters, the inertial mass, and the viscous damping coefficient can be continuously adjusted. Experimental validations were carried out on the VIMD with various parameters and a scaled sagged cable of 19.47 m long with the VIMD for vibration mitigation, along with a simulation study using the finite element method (FEM). The experimental results show that the modal damping ratio of the scaled cable was remarkably increased by the VIMD. The achieved maximum modal damping ratios for the first two modes were 6.98% and 8.15%, respectively, which are about 10 times the maximum values using a conventional viscous damper. The sag influence on damper-control performance was also studied by changing the cable tension. It showed that the first modal damping ratio provided by the VIMD was significantly reduced by the increased sag, whereas the second modal damping ratio was not. Fourier amplitude spectra of the cable responses subjected to sine sweep excitations show that the cable mode split into two and a pair of fixed points occurred by introducing a VIMD as in the theory of the fixed-point method (FPM) for the optimum design of a tuned mass damper. The performance of the optimum VIMD by the FPM was investigated in comparison with that by the maximum modal damping method.

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Section: Introductionmentioning

confidence: 99%

Vibration Mitigation of Sagged Cables Using a Viscous Inertial Mass Damper: An Experimental Investigation

Dong

Duan

et al. 2023

Structural Control and Health Monitoring

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“…Hence, the inerter-based (Petrini et al, 2020; Wagg, 2021) vibration absorbers (Chen and Hu, 2019b) are applied to mitigate the dynamic responses of the mechanical engineering machinery (De Domenico et al, 2019) and parts, notably automotive and train suspensions (Shen et al, 2016; Wang et al, 2006), buildings (Chowdhury et al, 2022b), wind turbines (Hu et al, 2018; Zhang and Fitzgerald, 2020; Zhang et al, 2019; Zhang and Høeg, 2021), and bridges (Song et al (2021); Liang et al (2021)). There are different types of inerter-inspired (Chowdhury and Banerjee, 2022a) TMD which were developed, such as tuned mass damper inerter (De Domenico and Ricciardi, 2018a; Su et al, 2022), tuned inerter damper (Shen et al, 2019; Wang et al, 2021), tuned viscous mass damper (Ma et al, 2021; Ikago et al, 2012), inerter-based dynamic vibration absorber (Hu and Chen, 2015), angular mass damper (Pradono et al, 2008), gyro-mass dampers (Hessabi and Mercan, 2016), rotational inertia viscous damper (Javidialesaadi and Wierschem, 2019a), viscous inertial mass damper (Lu et al, 2021), electromagnetic inertial mass dampers (Nakamura et al, 2014), rotational inertia dampers (Hwang et al, 2007), clutching inerter damper (Wang and Sun, 2018), tuned inertial mass electromagnetic transducers (Asai et al, 2018), spring-dashpot-inerter (Basili et al, 2019), rotational inertial double tuned mass dampers (Javidialesaadi and Wierschem, 2018), tuned heave plate inerter (Ma et al, 2018), inerter-enhanced nonlinear energy sink (Javidialesaadi and Wierschem, 2019b), tuned liquid inerter system (Zhao et al, 2019b), tuned liquid column damper inerter (Di Matteo et al, 2022), shape memory alloy-tuned mass damper inerter (Tiwari et al, 2021), inerter-based isolators (Hu et al, 2015), inerter-based vibration isolation (Liu et al, 2022), friction pendulum inerter system (…”

Section: Introductionmentioning

confidence: 99%

The optimum enhanced viscoelastic tuned mass dampers: Exact closed-form expressions

Chowdhury

Banerjee

Adhikari

2023

Journal of Vibration and Control

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This paper introduces the inertial amplifier viscoelastic tuned mass dampers (IAVTMD). The viscoelastic materials are implanted inside the core material of the inertial amplifier tuned mass dampers. The standard linear solid models are applied mathematically to formulate the viscoelastic material. H2 and H ∞ optimization mechanisms apply to derive the exact mathematical closed-form formulations for optimal design parameters for novel inertial amplifier viscoelastic tuned mass dampers. The optimum IAVTMD installs at the top of the structures to mitigate the dynamic responses, determining the dynamic responses analytically through transfer function formation. At first, IAVTMD’s dynamic response reduction capacity compares with the conventional tuned mass damper’s (CTMD) dynamic response reduction capacity. As a result, H2 optimized IAVTMD’s dynamic response reduction capacity is significantly 20.87% and 26.47% superior to two well-established H2 optimized conventional tuned mass damper’s dynamic response reduction capacity. In addition, H ∞ optimized IAVTMD has 15.48% more dynamic response reduction capacity than H ∞ conventional tuned mass damper. H2 and H ∞ optimized tuned mass damper inerters with optimal closed-form solutions are introduced in this paper. A higher damper mass ratio and a lower inerter mass ratio are recommended to produce H2 and H ∞ optimized tuned mass damper inerter (TMDI) with a lower frequency and damping ratio in an affordable range. Accordingly, H2 and H ∞ optimized IAVTMD’s dynamic response reduction capacities are significantly 6.94% and 23.29% superior to H2 and H ∞ optimized TMDI’s dynamic response reduction capacity. The closed-form expressions for optimal design parameters of inertial amplifier viscoelastic tuned mass dampers and tuned mass damper inerters are mathematically correct and effective for practical applications.

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“…36,37 This can be realized by surrounding the rotating part with viscous material so that the inerter works as a motion amplifier for the viscous damper. The resulting viscous mass dampers (VMDs) 38,39 and the upgraded tuned VMDs 24,40,41 have been applied to a number of buildings and shown better damping effect than conventional damper systems. Note that these devices dissipate energy through viscous damping and the inerter itself does not absorb any energy.…”

Section: Introductionmentioning

confidence: 99%

Experimental validation, analytical investigation, and design method of tuned mass damper‐clutching inerter for robust control of structures

Wang

Zheng

2022

Earthq Engng Struct Dyn

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Inerters have significantly uplifted the cost‐effectiveness of structural control technologies. A recently proposed tuned mass damper‐clutching inerter (TMDCI) takes advantage of both mass amplification effect and energy absorption capacity of inerter which is more effective and practical than its predecessors. However, the existing study only provided numerical demonstrations while experimental evidence and analytical explanation are still lacking for in‐depth understanding of the dynamic properties and working principles of TMDCIs. In this study, the mathematical descriptions of TMDCIs are first developed and experimentally validated on a three‐story structure. The validated model is then used to analyze the influences of inerter arrangement and total inertance in inerter‐enhanced devices. With an appropriate inerter arrangement and inertance, the TMDCI shows excellent control performance regardless of the changes in the structural frequency. The reason for the strong robustness of TMDCIs is then revealed via analytical investigation of standalone TMDCIs; the harmonically forced steady‐state responses manifest that the TMDCI can be linearized as equivalent tuned mass damper‐inerters with variable parameters whose natural frequency increases with the increase of excitation frequency. Based on the analytical findings, a design method with robustness consideration is subsequently proposed and draws satisfactory TMDCI designs for both single‐degree‐of‐freedom and multi‐degree‐of‐freedom structures. The designed TMDCI outperforms the comparable devices for both impulsive and seismic response mitigation. The study provides analytical insight into the control capacity of TMDCIs and lays the groundwork for practical design of TMDCIs as an effective and robust control strategy for engineering structures.

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Viscous inertial mass damper (VIMD) for seismic responses control of the coupled adjacent buildings

Cited by 25 publications

References 44 publications

Vibration Mitigation of Sagged Cables Using a Viscous Inertial Mass Damper: An Experimental Investigation

Vibration Mitigation of Sagged Cables Using a Viscous Inertial Mass Damper: An Experimental Investigation

The optimum enhanced viscoelastic tuned mass dampers: Exact closed-form expressions

Experimental validation, analytical investigation, and design method of tuned mass damper‐clutching inerter for robust control of structures

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