The damping effect of magnetorheological elastomers on dynamic absorber for powertrain vibration reduction

Hoang, N; Zhang, N; Du, H

The damping effect of magnetorheological elastomers on dynamic absorber for powertrain vibration reduction

Hoang, N Zhang, N

Du, H

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Publisher:: University of Canterbury, Christchurch, New Zealand
Publication Type:: Conference Proceeding
Citation:: Proceedings of the 13th Asia-Pacific Vibration Conference (APVC 09), 2009, pp. 1 - 10
Issue Date:: 2009-01

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Field	Value	Language
dc.contributor.author	Hoang, N	en_US
dc.contributor.author	Zhang, N https://orcid.org/0000-0001-6408-0044	en_US
dc.contributor.author	Du, H	en_US
dc.contributor.editor	Committee, CT	en_US
dc.date	2005-11-22	en_US
dc.date.issued	2009-01	en_US
dc.identifier.citation	Proceedings of the 13th Asia-Pacific Vibration Conference (APVC 09), 2009, pp. 1 - 10	en_US
dc.identifier.isbn	978-0-473-16050-0	en_US
dc.identifier.uri	http://hdl.handle.net/10453/11160
dc.description.abstract	The effect of damping of magnetorheological elastomer (MRE) on effectiveness of Adaptive Tuned Vibration Absorber (ATVA) for vehicle powertrain torsional steady vibration reduction is presented in this study. The MRE used to develop the ATVA is a soft MRE with a significant MR effect (the increase in elastic modulus is about 100 times). Thus, the ATVA can work in a wide frequency bandwidth. Several damping models were used for the soft MRE to estimate and compare the ATVA effectiveness for vibration reduction of a powertrain which is modeled as a four-degree-of-freedom system. Also, approximated formulas for both shear modulus and damping are proposed for ATVA design and they are in agreement with experiment data. The numerical simulations of the powertrain system fitted with the ATVA are carried out for these damping models. The obtained results show that at the resonant frequency the less MRE damping ratio is the higher ATVA effectiveness could be. However, the results also indicate that a low damping ratio may result in high vibration responses at the two new invariant frequencies which are introduced after adding the ATVA to the powertrain system. Furthermore, the results showed that it is different from traditional absorbers for tuning ATVA damping ratio and stiffness coefficient because for ATVA using MREs when either stiffness or damping coefficient is tuned, the other one will be set automatically as well. This result will be useful for choosing an optimal MRE material for constructing a smart ATVA for powertrain vibration reduction.	en_US
dc.publisher	University of Canterbury, Christchurch, New Zealand	en_US
dc.relation.ispartof	Proceedings of the 13th Asia-Pacific Vibration Conference (APVC 09)	en_US
dc.relation.ispartof	Asia Pacific Vibration Conference	en_US
dc.title	The damping effect of magnetorheological elastomers on dynamic absorber for powertrain vibration reduction	en_US
dc.type	Conference Proceeding
utslib.location	New Zealand	en_US
utslib.location.activity	Christchurch, New Zealand	en_US
utslib.for	091304 Dynamics, Vibration and Vibration Control	en_US
dc.location.activity	Christchurch, New Zealand	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 Mechanical and Mechatronic Engineering
utslib.copyright.status	open_access
pubs.consider-herdc	true	en_US
pubs.place-of-publication	New Zealand	en_US
pubs.start-date	2005-11-22	en_US

Abstract:

The effect of damping of magnetorheological elastomer (MRE) on effectiveness of Adaptive Tuned Vibration Absorber (ATVA) for vehicle powertrain torsional steady vibration reduction is presented in this study. The MRE used to develop the ATVA is a soft MRE with a significant MR effect (the increase in elastic modulus is about 100 times). Thus, the ATVA can work in a wide frequency bandwidth. Several damping models were used for the soft MRE to estimate and compare the ATVA effectiveness for vibration reduction of a powertrain which is modeled as a four-degree-of-freedom system. Also, approximated formulas for both shear modulus and damping are proposed for ATVA design and they are in agreement with experiment data. The numerical simulations of the powertrain system fitted with the ATVA are carried out for these damping models. The obtained results show that at the resonant frequency the less MRE damping ratio is the higher ATVA effectiveness could be. However, the results also indicate that a low damping ratio may result in high vibration responses at the two new invariant frequencies which are introduced after adding the ATVA to the powertrain system. Furthermore, the results showed that it is different from traditional absorbers for tuning ATVA damping ratio and stiffness coefficient because for ATVA using MREs when either stiffness or damping coefficient is tuned, the other one will be set automatically as well. This result will be useful for choosing an optimal MRE material for constructing a smart ATVA for powertrain vibration reduction.

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http://hdl.handle.net/10453/11160