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Modeling and vibration control of a smart vibration isolation system based on magneto-sensitive rubber
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.ORCID iD: 0000-0001-5760-3919
2019 (English)In: Smart materials and structures (Print), ISSN 0964-1726, E-ISSN 1361-665X, Vol. 28, no 6, article id 065026Article in journal (Refereed) Published
Abstract [en]

Magneto-sensitive (MS) rubber is a kind of smart material, the shear modulus of it can be changed rapidly and reversibly by a magnetic field applied. A smart MS rubber-based isolation system and a nonlinear model based on this MS rubber-based vibration isolation system are developed in this paper. The influence of the amplitude, frequency and magnetic dependency for MS rubber, the mechanical inertance of infinite extended foundation, the mass of solid block and the dimension of MS rubber isolators are all considered in this model. The feasibility of two control strategies aimed at reducing the energy transmitted to the foundation and protecting machine against foundation motion, respectively, is investigated based on this smart vibration isolation system. It is found that compared to the traditional passive rubber isolators, an enhanced vibration isolation effect can be achieved by using MS rubber isolators after control strategies applied. Furthermore, the influence of the amplitude dependency and the response time of MS rubber to the isolation effect is studied. The nonlinear model established for MS rubber isolation system, the control strategies developed and the investigation for the amplitude dependency and the response time of MS rubber to the isolation effect in this paper provide fundamentals for the application of MS rubber in the field of vibration reduction.

Place, publisher, year, edition, pages
IOP PUBLISHING LTD , 2019. Vol. 28, no 6, article id 065026
Keywords [en]
magneto-sensitive rubber, vibration isolation, amplitude dependency, frequency dependency, magnetic dependency, control strategies
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-252595DOI: 10.1088/1361-665X/ab1ab4ISI: 000467706900008Scopus ID: 2-s2.0-85068441497OAI: oai:DiVA.org:kth-252595DiVA, id: diva2:1322630
Note

QC 20190611

Available from: 2019-06-11 Created: 2019-06-11 Last updated: 2019-10-04Bibliographically approved

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Wang, BochaoKari, Leif

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