An adaptive tunable vibration absorber using a new magnetorheological elastomer for vehicular powertrain transient vibration reduction

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dc.contributor.author Hoang, N
dc.contributor.author Zhang, N
dc.contributor.author Du, H
dc.date.accessioned 2012-02-02T10:56:27Z
dc.date.issued 2011-01
dc.identifier.citation Smart Materials and Structures, 2011, 20 (1)
dc.identifier.issn 0964-1726
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/15324
dc.description.abstract During the transient stage of acceleration, the powertrain experiences a period of high level vibration because the engine speed passes through one or several powertrain natural frequencies. This paper presents a concept design of an adaptive tuned vibration absorber (ATVA) using a new magnetorheological elastomer (MRE) for powertrain transient vibration reduction. The MRE material used to develop the ATVA is a new one, which is synthesized from a highly elastic polymer and carbonyl iron particles of 3-5 and 40-50 μm. Under a magnetic field of 0.3 T, the MRE material has a giant increase, which is more than two orders, in both the storage and loss moduli. To facilitate the ATVA design, effective formulae for the storage modulus and loss factor were derived as explicit functions of the applied magnetic field density. With the derived formulae, ATVA parameters such as the stiffness and damping coefficients were converted effectively from the magnetic field density. Thus, the ATVA frequency can be tuned properly according to the excitation frequency. Numerical simulations of a powertrain system fitted with the ATVA were conducted to examine the ATVA proposed design. By using the MRE-based ATVA, the powertrain natural frequencies can be actively tuned far away from the resonant area of excitation frequency. Also, the time histories of powertrain frequencies depending on the magnetic field density before and after installing the ATVA have been compared to show that the resonant phenomena have been dealt with completely. As a result, the powertrain transient vibration response is significantly suppressed. In addition, the effect of the ATVA's moment of inertia, stiffness and damping on the ATVA's effectiveness during the transient stage was investigated to choose the ATVA's optimal parameters. The MRE-based ATVA will be a novel device for powertrain vibration control not only for the steady stage but also for transient vibration.
dc.language eng
dc.relation.isbasedon 10.1088/0964-1726/20/1/015019
dc.title An adaptive tunable vibration absorber using a new magnetorheological elastomer for vehicular powertrain transient vibration reduction
dc.type Journal Article
dc.description.version Published
dc.parent Smart Materials and Structures
dc.journal.volume 1
dc.journal.volume 20
dc.journal.number 1 en_US
dc.publocation United Kingdom en_US
dc.identifier.startpage 1 en_US
dc.identifier.endpage 11 en_US
dc.cauo.name FEIT.School of Elec, Mech and Mechatronic Systems en_US
dc.conference Verified OK en_US
dc.for 0902 Automotive Engineering
dc.personcode 950854
dc.personcode 123171
dc.personcode 100850
dc.percentage 100 en_US
dc.classification.name Automotive Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
pubs.embargo.period Not known
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 Elec, Mech and Mechatronic Systems
utslib.copyright.status Closed Access
utslib.copyright.date 2015-04-15 12:17:09.805752+10
pubs.consider-herdc true
utslib.collection.history Closed (ID: 3)


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