H-2 and H-infinity optimal designs of tuned inerter dampers for base motion excited structures with inherent damping

Xu, T; Li, Y; Lai, T; Li, S

H-2 and H-infinity optimal designs of tuned inerter dampers for base motion excited structures with inherent damping

Xu, T Li, Y

Lai, T Li, S

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Publisher:: SAGE PUBLICATIONS LTD
Publication Type:: Journal Article
Citation:: JVC/Journal of Vibration and Control, 2022
Issue Date:: 2022-01-01

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Field	Value	Language
dc.contributor.author	Xu, T
dc.contributor.author	Li, Y https://orcid.org/0000-0002-6720-8493
dc.contributor.author	Lai, T
dc.contributor.author	Li, S
dc.date.accessioned	2023-04-21T01:37:45Z
dc.date.available	2023-04-21T01:37:45Z
dc.date.issued	2022-01-01
dc.identifier.citation	JVC/Journal of Vibration and Control, 2022
dc.identifier.issn	1077-5463
dc.identifier.issn	1741-2986
dc.identifier.uri	http://hdl.handle.net/10453/170056
dc.description.abstract	Tuned inerter damper (TID) has recently gained increasing attention as a new structural control mechanism for seismic protection of structures. Currently, theoretical investigations are undertaken by researchers to reveal its fundamentals and to understand its underline principles in altering the structural performances of structures against dynamic loadings. However, the comprehensive study of optimization design of TID for undamped structures is lacking and the majority of the research focuses on the optimization of TID for structures without any damping. This research evaluates the (Formula presented.) and (Formula presented.) optimal designs of TIDs on the structures with damping. Using SDOF structure as an example, the frequency response function of the system equipped with TID underground motion excitation is obtained. The (Formula presented.) and (Formula presented.) designs of TID for structures without damping are derived considering various response parameters using analytical method. A numerical search method is utilized for the (Formula presented.) and (Formula presented.) designs of TID for structures with damping; meanwhile, a set of explicit formulae are obtained by curve-fitting for convenience in the application. Finally, the relative motion response of the inerter is explored, and an optimal design formula of TID which can reduce the displacements of primary mass and inerter simultaneously, is proposed.
dc.language	English
dc.publisher	SAGE PUBLICATIONS LTD
dc.relation.ispartof	JVC/Journal of Vibration and Control
dc.relation.isbasedon	10.1177/10775463221102254
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering, 0913 Mechanical Engineering
dc.subject.classification	Acoustics
dc.title	H-2 and H-infinity optimal designs of tuned inerter dampers for base motion excited structures with inherent damping
dc.type	Journal Article
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	0913 Mechanical Engineering
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	closed_access	*
dc.date.updated	2023-04-21T01:37:43Z
pubs.publication-status	Published

Abstract:

Tuned inerter damper (TID) has recently gained increasing attention as a new structural control mechanism for seismic protection of structures. Currently, theoretical investigations are undertaken by researchers to reveal its fundamentals and to understand its underline principles in altering the structural performances of structures against dynamic loadings. However, the comprehensive study of optimization design of TID for undamped structures is lacking and the majority of the research focuses on the optimization of TID for structures without any damping. This research evaluates the (Formula presented.) and (Formula presented.) optimal designs of TIDs on the structures with damping. Using SDOF structure as an example, the frequency response function of the system equipped with TID underground motion excitation is obtained. The (Formula presented.) and (Formula presented.) designs of TID for structures without damping are derived considering various response parameters using analytical method. A numerical search method is utilized for the (Formula presented.) and (Formula presented.) designs of TID for structures with damping; meanwhile, a set of explicit formulae are obtained by curve-fitting for convenience in the application. Finally, the relative motion response of the inerter is explored, and an optimal design formula of TID which can reduce the displacements of primary mass and inerter simultaneously, is proposed.

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http://hdl.handle.net/10453/170056