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

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dc.contributor.author Hoang, Nga en_US
dc.contributor.author Zhang, Nong en_US
dc.contributor.author Du, Haiping en_US
dc.contributor.editor en_US
dc.date.accessioned 2012-02-02T10:56:27Z
dc.date.available 2012-02-02T10:56:27Z
dc.date.issued 2011 en_US
dc.identifier 2010000482 en_US
dc.identifier.citation Hoang Nga, Zhang Nong, and Du Haiping 2011, 'An adaptive tunable vibration absorber using a new magnetorheological elastomer for vehicular powertrain transient vibration reduction', Institute of Physics Publishing Ltd., vol. 20, no. 1, pp. 1-11. en_US
dc.identifier.issn 0964-1726 en_US
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 3a??5 and 40a??50 I?m. 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 ATVAa??s moment of inertia, stiffness and damping on the ATVAa??s effectiveness during the transient stage was investigated to choose the ATVAa??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. en_US
dc.language en_US
dc.publisher Institute of Physics Publishing Ltd. en_US
dc.relation.isbasedon http://dx.doi.org/10.1088/0964-1726/20/1/015019 en_US
dc.title An adaptive tunable vibration absorber using a new magnetorheological elastomer for vehicular powertrain transient vibration reduction en_US
dc.parent Smart Materials & Structures en_US
dc.journal.volume 20 en_US
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 090200 en_US
dc.personcode 100850 en_US
dc.personcode 950854 en_US
dc.personcode 996919 en_US
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
dc.description.keywords NA en_US
dc.staffid en_US
dc.staffid 996919 en_US


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