Seismic control of single‐degree‐of‐freedom structure using tuned viscous mass damper

Ikago, Kohju; Saito, Kenji; Inoue, Norio

doi:10.1002/eqe.1138

Cited by 564 publications

(418 citation statements)

References 50 publications

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“…In the past two years, the inerter concept has also been used in proof mass dampers, aiming to improve their damping performance and frequency tunability [17][18][19], or proof-mass actuation [20] in automotive engineering. In [21], Ikago, et al presented the idea of using an inerter-like ball-screw mechanism in a seismic vibration system with viscous mass damper or tuned viscous mass damper system. A type of electromagnetic inertial mass damper using a ball screw mechanism and a motor was presented to control the vibration of structures subjected to earthquakes in [22].…”

Section: Introductionmentioning

confidence: 99%

Seismic control of a SDOF structure through electromagnetic resonant shunt tuned mass-damper-inerter and the exact H2 optimal solutions

Sun¹,

Luo²,

Wang³

et al. 2017

J. vibroeng.

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Abstract. This paper proposes a novel inerter-based component dynamic vibration absorber, namely, electromagnetic resonant shunt tuned mass-damper-inerter (ERS-TMDI). To analyze the performances of the ERS-TMDI, the combined ERS-TMDI and a single degree of freedom system are developed. The norm performances of the ERS-TMDI, whose aim is to minimize the root mean square (RMS) value of structure damage under random ground acceleration excitation, are introduced in comparison with the energy-harvesting series electromagnetic tuned mass dampers (ERS-TMDs), tuned mass-damper-inerter (TMDI) and the classical tuned mass damper (TMD). The closed-form solutions, including the optimal mechanical tuning ratio, the optimal electrical damping ratio, the optimal electrical tuning ratio and the optimal electromagnetic mechanical coupling coefficient, are obtained. It is shown that the ERS-TMDI is superior to both the classical TMD and the ERS-TMD systems for protection from structure damage. Specifically, from the frequency-domain analyses, a case study is performed to illustrate the effectiveness, robustness of the ERS-TMDI and the sensitivity to the parameter changes. From the time-domain analyses, four types of earthquakes are studied to demonstrate the performances of vibration suppression.

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Section: Introductionmentioning

confidence: 99%

Seismic control of a SDOF structure through electromagnetic resonant shunt tuned mass-damper-inerter and the exact H2 optimal solutions

Sun¹,

Luo²,

Wang³

et al. 2017

J. vibroeng.

View full text Add to dashboard Cite

show abstract

“…It is called tuned viscous mass damper (TVMD) system [25]. This device was studied mostly to improve the seismic performance of a single-degree-of-freedom structures, and it proved to outperform other well-known devices.…”

Section: Introductionmentioning

confidence: 99%

Effects of play and inerter nonlinearities on the performance of tuned mass damper

Brzeski

Perlikowski

2016

Nonlinear Dyn

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In this paper, we analyze the dynamics of tuned mass dampers with inerters. In the beginning, we describe the influence of inertance value with respect to the overall mass of the damping device. For further analysis, we pick three practically significant caseseach corresponding to different composition of tuned mass damper inertia. Then, we focus on the effects caused by different types of inerters' nonlinearities. Viscous damping, dry friction and play in the inerter gears influence the dynamics of the tuned mass damper and affect its damping efficiency. Finally, we examine the dynamics of the model that incorporates all of these factors and propose its simplification which is genuine but more convenient. Our results show how to adjust the inerter type and the parameters depending on our needs and intended application. The knowledge on how to model the behavior of tuned mass dampers with inerters will be of practical use to engineers working with mechanical dampers.

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“…This leads to the generation of a high inertial force, that cannot be obtained using a traditional TMD, where the mass is restricted to low values. Gearing ratios of 200:1 have been achieved [13].…”

Section: Introductionmentioning

confidence: 99%

“…Ikago et al [13,20] studied the performance of tuned viscous mass dampers, where the inerter is mounted in parallel to a damper, both elements being connected in series with a spring. Marian and Giaralis [21] propose the use of a tuned mass-damper-inerter systems (TMDI), where the inerter is mounted in series with a TMD, thus connecting it between two adjacent storeys.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Cables with Attached Tuned-Inerter-Dampers

Lazar

Neild

Wagg

2015

Conference Proceedings of the Society for Experimental Mechanics Series

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Cables are widely used structural elements capable of bearing tensile forces and experience vibration problems due to their slenderness and low mass. In the field of civil engineering, they are mostly used in bridges where the vibrations are mainly induced by wind, rain, traffic and earthquakes. This paper proposes the use of a tuned-inerter-damper (TID) system, mounted on cables to suppress unwanted vibrations. These are to be attached transversally to the cable, in the vicinity of the support, connected between the deck and the cable. The potential advantage of using a TID system consists in the high apparent mass that can be produced by the inerter. Our analysis showed that the modal damping ratio obtained is much higher than in the case of traditional dampers or tuned mass dampers, leading to an improved overall response. An optimal tuning methodology is also discussed. Numerical results are shown with a cable subjected to both free and forced vibrations and the TID performance is improved when compared with equivalent dampers.

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Seismic control of single‐degree‐of‐freedom structure using tuned viscous mass damper

Cited by 564 publications

References 50 publications

Seismic control of a SDOF structure through electromagnetic resonant shunt tuned mass-damper-inerter and the exact H2 optimal solutions

Seismic control of a SDOF structure through electromagnetic resonant shunt tuned mass-damper-inerter and the exact H2 optimal solutions

Effects of play and inerter nonlinearities on the performance of tuned mass damper

Performance Analysis of Cables with Attached Tuned-Inerter-Dampers

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