Deastra, P. orcid.org/0000-0002-1709-4686, Wagg, D.J. orcid.org/0000-0002-7266-2105, Sims, N.D. orcid.org/0000-0002-6292-6736 et al. (1 more author) (2023) Experimental shake table validation of damping behaviour in inerter-based dampers. Bulletin of Earthquake Engineering, 21 (3). pp. 1389-1409. ISSN 1570-761X
Abstract
Inerter-based-dampers have received substantial interest from the earthquake engineering community in the last two decades. These typically consist of an inerter, a linear spring and a viscous damper arranged into various possible configurations. In this paper, for the first time, experimental results are presented from shake table tests on a scaled three-storey structure with an inerter-based damper included, in order to suppress vibration amplitudes at the resonant frequencies. In particular two types of device are used to demonstrate the differences between using viscous and hysteretic damping in the inerter-based device. The two different types of experimental dampers were manufactured using eddy current dampers and gel damping material. The inerter was manufactured based on a flywheel design. The experimental results were compared with four analytical models tuned to suppress vibrations in the first resonance; namely the tuned-inerter-damper, the tuned-inerter-hysteretic-damper, the tuned-mass-damper-inerter, and the tuned-mass-hysteretic-damper-inerter. These experimental results confirm the observations made from the models that the suppression of higher resonance peaks is significantly different between the viscous and hysteretic damped inerter-based-dampers. Consequently, it is recommended that future studies exploring the performance of inerter-based seismic mitigation systems pay close attention to the damping mechanisms that are prevalent within the structure.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 The Author(s). This is an author-produced version of a paper subsequently published in Bulletin of Earthquake Engineering. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Inerter-based-damper; Eddy current damper; linear hysteretic damping; Shake-table experiment; Gel damper; Flywheel inerter |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > School of Mechanical, Aerospace and Civil Engineering |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/N010884/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/R006768/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 16 Jan 2025 09:57 |
Last Modified: | 16 Jan 2025 10:03 |
Status: | Published |
Publisher: | Springer Science and Business Media LLC |
Refereed: | Yes |
Identification Number: | 10.1007/s10518-022-01376-1 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:221781 |