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Magnetic negative stiffness dampers
Open accessAbstract
Abstract This communication presents the design principle and experimental validation of two novel configurations of magnetic negative stiffness dampers (MNSDs), both of which are composed of several permanent magnets arranged in a conductive pipe. The MNSD, as a passive device, efficiently integrates negative stiffness and eddy-current damping in a simple and compact design, in which the negative stiffness behavior depends on the different arrangements of the permanent magnets. When applied to structural vibration control, passive MNSD may achieve a performance comparable with semi-active or active control in some applications. Laboratory experiments of small-scale prototypes successfully verified the proposed MNSD design concept.
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“Shi and Zhu [77] presented two schemes of passive NSDs by means of magnetism, called Magnetic Negative Stiffness Dampers, composed of a number of constant magnets set into a conductive pipe as shown in Fig. 9. The proof of concept laboratory tests were conducted on an MTS machine where a cyclic displacement was applied to the prototype.”
From Invited Review: Recent developments in vibration control of building and bridge structures (2017) · cites this paper as [77]
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Research works printed but not linked: 14
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- Høgsberg, 2011, The role of negative stiffness in semi-active control of magneto—rheological dampers, Struct. Control Health Monit., 18, 289, 10.1002/stc.371 · DOI
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- Iemura, 2009, Advances in the development of pseudo‐negative‐stiffness dampers for seismic response control, Struct. Control Health Monit., 16, 784, 10.1002/stc.345 · DOI
- Kalathur, 2013, Column dampers with negative stiffness: high damping at small amplitude, Smart Mater. Struct., 22, 10.1088/0964-1726/22/8/084013 · DOI
- Le, 2011, A vibration isolation system in low frequency excitation region using negative stiffness structure for vehicle seat, J. Sound Vib., 330, 6311, 10.1016/j.jsv.2011.07.039 · DOI
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- Platus, 2007, Negative-stiffness vibration isolation improves reliability of nanoinstrumentation, Laser Focus World, 43, 107
- Weber, 2011, Clipped viscous damping with negative stiffness for semi-active cable damping, Smart Mater. Struct., 20, 10.1088/0964-1726/20/4/045007 · DOI
- Weber, 2011, An adaptive tuned mass damper based on the emulation of positive and negative stiffness with an MR damper, Smart Mater. Struct., 20, 10.1088/0964-1726/20/4/045007 · DOI
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Cited by
Sorted by citations
Invited Review: Recent developments in vibration control of building and bridge structures
Ghaedi, K., Ibrahim, Z., Adeli, H., & Javanmardi, A. (2017) · Journal of Vibroengineering · doi:10.21595/jve.2017.18900 · Cited by 146
“Shen and Zhu [103] presented an EMD cum-energy-harvester consisting of an electromagnetic device attached to a circuit.”
Background
Metadata
- Authors
- Shi, X., & Zhu, S.
- Affiliations
- Hong Kong Polytechnic University (HK)
- Corresponding author
- Zhu, Songye
- Venue
- Smart Materials and Structures
- Publisher
- IOP Publishing
- Published
- 2015-06-17
- Volume
- 24
- Issue
- 7
- Pages
- 072002
- ISSN
- 0964-1726 (ISSN-L)
- 1361-665X
- OpenAlex
- W2163013850
- Cited by
- 156
- References
- 0
- Citations by year
- 2026: 13 · 2025: 20 · 2024: 22 · 2023: 18 · 2022: 18 · 2021: 12 · 2020: 19 · 2019: 16 · 2018: 8 · 2017: 7 · 2016: 3
- FWCI
- 9.92
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Smart Materials and Structures (publishedVersion)
- PolyU Institutional Research Archive (Hong Kong Polytechnic University) (submittedVersion)
- Funders
- Research Grants Council of Hong Kong (PolyU 152222/14E)
- Innovation and Technology Commission of Hong Kong (ITS/1344/14)
- Topics
- Physical Sciences › Engineering › Civil and Structural Engineering › Vibration Control and Rheological Fluids
- Physical Sciences › Engineering › Control and Systems Engineering › Magnetic Bearings and Levitation Dynamics
- Physical Sciences › Engineering › Mechanical Engineering › Innovative Energy Harvesting Technologies
- Keywords
- negative stiffness, eddy current damping, permanent magnets, passive vibration control, structural vibration control, magnet arrangement, damping devices
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