Dynamic compression testing of a tunable spring element consisting of a magnetorheological elastomer

Marke Kallio (Corresponding Author), Tomi Lindroos, Samu Aalto, Erkki Järvinen, Tuomo Kärnä, Tor Meinander

Research output: Contribution to journalArticleScientificpeer-review

120 Citations (Scopus)

Abstract

Magnetorheological elastomers (MRE) are interesting candidates for active vibration control of structural systems. In this study, spring elements consisting of magnetorheological elastomer were prepared and tested in dynamic compression to study the changes in their stiffness and vibration damping characteristics under the influence of a magnetic field. Aligned and isotropic magnetorheological elastomer composites were prepared and their mechanical properties were characterized in cyclic compression passively and with increasing magnetic flux density. It was noted that when measured in a magnetic field both the dynamic spring constants and the loss factor values of aligned MREs were increased compared to the zero-field values. The dynamic stiffness of aligned MRES increased with increasing testing frequency and it was tunable with magnetic flux density in the studied frequency range. The loss factor of aligned MREs was also tunable with the magnetic flux density but the absolute values also depend on the testing frequency. On the basis of these results, the MREs are applicable as tunable spring elements for active vibration control.
Original languageEnglish
Pages (from-to)506-514
JournalSmart Materials and Structures
Volume16
Issue number2
DOIs
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed

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Elastomers
Compression testing
elastomers
Magnetic flux
magnetic flux
flux density
Vibration control
stiffness
Stiffness
Magnetic fields
vibration damping
vibration
Testing
magnetic fields
Vibrations (mechanical)
Damping
frequency ranges
damping
mechanical properties
Mechanical properties

Keywords

  • smart materials
  • magnetorheological elastomers
  • dynamic stiffness
  • vibration control

Cite this

Kallio, Marke ; Lindroos, Tomi ; Aalto, Samu ; Järvinen, Erkki ; Kärnä, Tuomo ; Meinander, Tor. / Dynamic compression testing of a tunable spring element consisting of a magnetorheological elastomer. In: Smart Materials and Structures. 2007 ; Vol. 16, No. 2. pp. 506-514.
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abstract = "Magnetorheological elastomers (MRE) are interesting candidates for active vibration control of structural systems. In this study, spring elements consisting of magnetorheological elastomer were prepared and tested in dynamic compression to study the changes in their stiffness and vibration damping characteristics under the influence of a magnetic field. Aligned and isotropic magnetorheological elastomer composites were prepared and their mechanical properties were characterized in cyclic compression passively and with increasing magnetic flux density. It was noted that when measured in a magnetic field both the dynamic spring constants and the loss factor values of aligned MREs were increased compared to the zero-field values. The dynamic stiffness of aligned MRES increased with increasing testing frequency and it was tunable with magnetic flux density in the studied frequency range. The loss factor of aligned MREs was also tunable with the magnetic flux density but the absolute values also depend on the testing frequency. On the basis of these results, the MREs are applicable as tunable spring elements for active vibration control.",
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Dynamic compression testing of a tunable spring element consisting of a magnetorheological elastomer. / Kallio, Marke (Corresponding Author); Lindroos, Tomi; Aalto, Samu; Järvinen, Erkki; Kärnä, Tuomo; Meinander, Tor.

In: Smart Materials and Structures, Vol. 16, No. 2, 2007, p. 506-514.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Dynamic compression testing of a tunable spring element consisting of a magnetorheological elastomer

AU - Kallio, Marke

AU - Lindroos, Tomi

AU - Aalto, Samu

AU - Järvinen, Erkki

AU - Kärnä, Tuomo

AU - Meinander, Tor

PY - 2007

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N2 - Magnetorheological elastomers (MRE) are interesting candidates for active vibration control of structural systems. In this study, spring elements consisting of magnetorheological elastomer were prepared and tested in dynamic compression to study the changes in their stiffness and vibration damping characteristics under the influence of a magnetic field. Aligned and isotropic magnetorheological elastomer composites were prepared and their mechanical properties were characterized in cyclic compression passively and with increasing magnetic flux density. It was noted that when measured in a magnetic field both the dynamic spring constants and the loss factor values of aligned MREs were increased compared to the zero-field values. The dynamic stiffness of aligned MRES increased with increasing testing frequency and it was tunable with magnetic flux density in the studied frequency range. The loss factor of aligned MREs was also tunable with the magnetic flux density but the absolute values also depend on the testing frequency. On the basis of these results, the MREs are applicable as tunable spring elements for active vibration control.

AB - Magnetorheological elastomers (MRE) are interesting candidates for active vibration control of structural systems. In this study, spring elements consisting of magnetorheological elastomer were prepared and tested in dynamic compression to study the changes in their stiffness and vibration damping characteristics under the influence of a magnetic field. Aligned and isotropic magnetorheological elastomer composites were prepared and their mechanical properties were characterized in cyclic compression passively and with increasing magnetic flux density. It was noted that when measured in a magnetic field both the dynamic spring constants and the loss factor values of aligned MREs were increased compared to the zero-field values. The dynamic stiffness of aligned MRES increased with increasing testing frequency and it was tunable with magnetic flux density in the studied frequency range. The loss factor of aligned MREs was also tunable with the magnetic flux density but the absolute values also depend on the testing frequency. On the basis of these results, the MREs are applicable as tunable spring elements for active vibration control.

KW - smart materials

KW - magnetorheological elastomers

KW - dynamic stiffness

KW - vibration control

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DO - 10.1088/0964-1726/16/2/032

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