Vibration suppression in high-speed trains with negative stiffness dampers

Shi, X; Zhu, S; Ni, YQ; Li, J

Vibration suppression in high-speed trains with negative stiffness dampers

Shi, X Zhu, S Ni, YQ Li, J

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Publication Type:: Journal Article
Citation:: Smart Structures and Systems, 2018, 21 (5), pp. 653 - 668
Issue Date:: 2018-05-01

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Field	Value	Language
dc.contributor.author	Shi, X	en_US
dc.contributor.author	Zhu, S	en_US
dc.contributor.author	Ni, YQ	en_US
dc.contributor.author	Li, J https://orcid.org/0000-0002-2526-3048	en_US
dc.date.issued	2018-05-01	en_US
dc.identifier.citation	Smart Structures and Systems, 2018, 21 (5), pp. 653 - 668	en_US
dc.identifier.issn	1738-1584	en_US
dc.identifier.uri	http://hdl.handle.net/10453/134022
dc.description.abstract	Copyright © 2018 Techno-Press, Ltd. This work proposes and investigates re-centering negative stiffness dampers (NSDs) for vibration suppression in high-speed trains. The merit of the negative stiffness feature is demonstrated by active controllers on a high-speed train. This merit inspires the replacement of active controllers with re-centering NSDs, which are more reliable and robust than active controllers. The proposed damper design consists of a passive magnetic negative stiffness spring and a semi-active positioning shaft for re-centering function. The former produces negative stiffness control forces, and the latter prevents the amplification of quasi-static spring deflection. Numerical investigations verify that the proposed re-centering NSD can improve ride comfort significantly without amplifying spring deflection.	en_US
dc.relation.ispartof	Smart Structures and Systems	en_US
dc.relation.isbasedon	10.12989/sss.2018.21.5.653	en_US
dc.subject.classification	Civil Engineering	en_US
dc.title	Vibration suppression in high-speed trains with negative stiffness dampers	en_US
dc.type	Journal Article
utslib.citation.volume	5	en_US
utslib.citation.volume	21	en_US
utslib.for	0803 Computer Software	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	08 Information and Computing Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	open_access
pubs.issue	5	en_US
pubs.publication-status	Published	en_US
pubs.volume	21	en_US

Abstract:

Copyright © 2018 Techno-Press, Ltd. This work proposes and investigates re-centering negative stiffness dampers (NSDs) for vibration suppression in high-speed trains. The merit of the negative stiffness feature is demonstrated by active controllers on a high-speed train. This merit inspires the replacement of active controllers with re-centering NSDs, which are more reliable and robust than active controllers. The proposed damper design consists of a passive magnetic negative stiffness spring and a semi-active positioning shaft for re-centering function. The former produces negative stiffness control forces, and the latter prevents the amplification of quasi-static spring deflection. Numerical investigations verify that the proposed re-centering NSD can improve ride comfort significantly without amplifying spring deflection.

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http://hdl.handle.net/10453/134022