Performance of a semi-active/passive integrated isolator based on a magnetorheological elastomer and spring

Du, G; Huang, X; Li, Y; Ouyang, Q; Wang, J

Performance of a semi-active/passive integrated isolator based on a magnetorheological elastomer and spring

Du, G Huang, X Li, Y

Ouyang, Q Wang, J

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Publication Type:: Journal Article
Citation:: Smart Materials and Structures, 2017, 26 (9)
Issue Date:: 2017-08-09

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Field	Value	Language
dc.contributor.author	Du, G	en_US
dc.contributor.author	Huang, X	en_US
dc.contributor.author	Li, Y https://orcid.org/0000-0002-6720-8493	en_US
dc.contributor.author	Ouyang, Q	en_US
dc.contributor.author	Wang, J	en_US
dc.date.available	2020-05-25T19:19:52Z
dc.date.issued	2017-08-09	en_US
dc.identifier.citation	Smart Materials and Structures, 2017, 26 (9)	en_US
dc.identifier.issn	0964-1726	en_US
dc.identifier.uri	http://hdl.handle.net/10453/125294
dc.description.abstract	© 2017 IOP Publishing Ltd. This paper reports an investigation on a semi-active/passive integrated vibration isolator utilizing a magnetorheological elastomer (MRE) and spring. To overcome the main shortcoming of passive isolation systems, i.e. lack of adaptability, the semi-active/passive integrated isolator (SAPII) based on an MRE and spring is designed and prototyped. The magnetic circuit is optimized by finite element analysis to fully unlock the unique features of the MRE. The dynamic response characteristic of the SAPII is experimentally investigated under a sweep frequency test. A dynamic model of the SAPII vibration isolation system is established on the basis of the Kelvin model. The model parameters, such as equivalent stiffness and equivalent damping, are identified from experimental data. An ON-OFF control law based on the minimal displacement transmissibility is designed for isolation control of the sinusoid excitation. Two control laws, i.e. ON-OFF control and fuzzy logic control, are designed for vibration isolation of random excitation. Finally, the effectiveness of these control laws is verified by numerical simulation and experiment.	en_US
dc.relation.ispartof	Smart Materials and Structures	en_US
dc.relation.isbasedon	10.1088/1361-665X/aa741d	en_US
dc.subject.classification	Materials	en_US
dc.title	Performance of a semi-active/passive integrated isolator based on a magnetorheological elastomer and spring	en_US
dc.type	Journal Article
utslib.citation.volume	9	en_US
utslib.citation.volume	26	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	03 Chemical 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	9	en_US
pubs.publication-status	Published	en_US
pubs.volume	26	en_US

Abstract:

© 2017 IOP Publishing Ltd. This paper reports an investigation on a semi-active/passive integrated vibration isolator utilizing a magnetorheological elastomer (MRE) and spring. To overcome the main shortcoming of passive isolation systems, i.e. lack of adaptability, the semi-active/passive integrated isolator (SAPII) based on an MRE and spring is designed and prototyped. The magnetic circuit is optimized by finite element analysis to fully unlock the unique features of the MRE. The dynamic response characteristic of the SAPII is experimentally investigated under a sweep frequency test. A dynamic model of the SAPII vibration isolation system is established on the basis of the Kelvin model. The model parameters, such as equivalent stiffness and equivalent damping, are identified from experimental data. An ON-OFF control law based on the minimal displacement transmissibility is designed for isolation control of the sinusoid excitation. Two control laws, i.e. ON-OFF control and fuzzy logic control, are designed for vibration isolation of random excitation. Finally, the effectiveness of these control laws is verified by numerical simulation and experiment.

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http://hdl.handle.net/10453/125294