Dynamic Analysis of a Novel Zero-Stiffness Vibration Isolator by Considering Frictional Force Involved

Ye, K; Ji, JC; Hu, D

Dynamic Analysis of a Novel Zero-Stiffness Vibration Isolator by Considering Frictional Force Involved

Ye, K

Ji, JC Hu, D

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Publisher:: Springer Nature
Publication Type:: Conference Proceeding
Citation:: Lecture Notes in Electrical Engineering, 2022, 799 LNEE, pp. 544-553
Issue Date:: 2022-01-01

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Field	Value	Language
dc.contributor.author	Ye, K https://orcid.org/0000-0001-7109-2334
dc.contributor.author	Ji, JC
dc.contributor.author	Hu, D
dc.date.accessioned	2023-03-13T05:30:15Z
dc.date.available	2023-03-13T05:30:15Z
dc.date.issued	2022-01-01
dc.identifier.citation	Lecture Notes in Electrical Engineering, 2022, 799 LNEE, pp. 544-553
dc.identifier.isbn	9789811659119
dc.identifier.issn	1876-1100
dc.identifier.issn	1876-1119
dc.identifier.uri	http://hdl.handle.net/10453/167145
dc.description.abstract	This study proposes a novel zero-stiffness vibration isolator and investigates its dynamic responses under micro-oscillation with a friction consideration. The novel vibration isolator is based on the mechanism of a cam-roller Quasi-Zero-Stiffness (QZS) system while with improvement by reducing its system components. The proposed vibration isolator consists of a designed bearing, which can provide stiffness responses in the radial direction, and an inserted rod with curved surface. Without the precise cooperation between the positive and negative stiffness systems required in a typical QZS isolator, the designed single stiffness system can provide the high-static-low-dynamic stiffness characteristic directly. The static characteristics of the stiffness performance are numerically confirmed, and then the dynamic responses with friction consideration at the contact surfaces are discussed. The displacement transmissibility in low frequency range is numerically validated when applying harmonic excitation on the base. The analysis results of this study reveal a unique vibration isolating performance of the zero-stiffness system under frication consideration.
dc.language	en
dc.publisher	Springer Nature
dc.relation.ispartof	Lecture Notes in Electrical Engineering
dc.relation.ispartofseries	Lecture Notes in Electrical Engineering
dc.relation.isbasedon	10.1007/978-981-16-5912-6_40
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Dynamic Analysis of a Novel Zero-Stiffness Vibration Isolator by Considering Frictional Force Involved
dc.type	Conference Proceeding
utslib.citation.volume	799 LNEE
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 Mechanical and Mechatronic Engineering
utslib.copyright.status	open_access	*
dc.date.updated	2023-03-13T05:30:11Z
pubs.publication-status	Published
pubs.volume	799 LNEE

Abstract:

This study proposes a novel zero-stiffness vibration isolator and investigates its dynamic responses under micro-oscillation with a friction consideration. The novel vibration isolator is based on the mechanism of a cam-roller Quasi-Zero-Stiffness (QZS) system while with improvement by reducing its system components. The proposed vibration isolator consists of a designed bearing, which can provide stiffness responses in the radial direction, and an inserted rod with curved surface. Without the precise cooperation between the positive and negative stiffness systems required in a typical QZS isolator, the designed single stiffness system can provide the high-static-low-dynamic stiffness characteristic directly. The static characteristics of the stiffness performance are numerically confirmed, and then the dynamic responses with friction consideration at the contact surfaces are discussed. The displacement transmissibility in low frequency range is numerically validated when applying harmonic excitation on the base. The analysis results of this study reveal a unique vibration isolating performance of the zero-stiffness system under frication consideration.

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http://hdl.handle.net/10453/167145