Design of a Real-Time Adaptively Tuned Dynamic Vibration Absorber with a Variable Stiffness Property Using Magnetorheological Elastomer

Design of a Real-Time Adaptively Tuned Dynamic Vibration Absorber with a Variable Stiffness Property Using Magnetorheological Elastomer

An elastomer composite with controllable stiffness, known as a magnetorheological elastomer (MRE), is used in a dynamic vibration absorber whose natural frequency is tuned adaptively to the disturbance frequency through the application of an external magnetic field. The field-dependent property test...

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Main Authors: Toshihiko Komatsuzaki, Yoshio Iwata
Format: Article
Language:English
Published: Hindawi Limited 2015-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2015/676508
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spelling doaj-d998d8dc52a74633a6140692d02e17932020-11-24T22:26:01ZengHindawi LimitedShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/676508676508Design of a Real-Time Adaptively Tuned Dynamic Vibration Absorber with a Variable Stiffness Property Using Magnetorheological ElastomerToshihiko Komatsuzaki0Yoshio Iwata1Institute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, JapanInstitute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, JapanAn elastomer composite with controllable stiffness, known as a magnetorheological elastomer (MRE), is used in a dynamic vibration absorber whose natural frequency is tuned adaptively to the disturbance frequency through the application of an external magnetic field. The field-dependent property test of the fabricated MRE sample shows that the stiffness changes by more than six times compared to the baseline property value at a 40% iron powder volume concentration. The MRE is then used to fabricate a frequency-tunable dynamic absorber for mitigating transient vibrations of a one-degree-of-freedom system. Investigations show that the proposed absorber outperforms a conventional passive-type absorber throughout the tunable frequency range.http://dx.doi.org/10.1155/2015/676508
collection DOAJ
language English
format Article
sources DOAJ
author Toshihiko Komatsuzaki
Yoshio Iwata
spellingShingle Toshihiko Komatsuzaki
Yoshio Iwata
Design of a Real-Time Adaptively Tuned Dynamic Vibration Absorber with a Variable Stiffness Property Using Magnetorheological Elastomer
Shock and Vibration
author_facet Toshihiko Komatsuzaki
Yoshio Iwata
author_sort Toshihiko Komatsuzaki
title Design of a Real-Time Adaptively Tuned Dynamic Vibration Absorber with a Variable Stiffness Property Using Magnetorheological Elastomer
title_short Design of a Real-Time Adaptively Tuned Dynamic Vibration Absorber with a Variable Stiffness Property Using Magnetorheological Elastomer
title_full Design of a Real-Time Adaptively Tuned Dynamic Vibration Absorber with a Variable Stiffness Property Using Magnetorheological Elastomer
title_fullStr Design of a Real-Time Adaptively Tuned Dynamic Vibration Absorber with a Variable Stiffness Property Using Magnetorheological Elastomer
title_full_unstemmed Design of a Real-Time Adaptively Tuned Dynamic Vibration Absorber with a Variable Stiffness Property Using Magnetorheological Elastomer
title_sort design of a real-time adaptively tuned dynamic vibration absorber with a variable stiffness property using magnetorheological elastomer
publisher Hindawi Limited
series Shock and Vibration
issn 1070-9622
1875-9203
publishDate 2015-01-01
description An elastomer composite with controllable stiffness, known as a magnetorheological elastomer (MRE), is used in a dynamic vibration absorber whose natural frequency is tuned adaptively to the disturbance frequency through the application of an external magnetic field. The field-dependent property test of the fabricated MRE sample shows that the stiffness changes by more than six times compared to the baseline property value at a 40% iron powder volume concentration. The MRE is then used to fabricate a frequency-tunable dynamic absorber for mitigating transient vibrations of a one-degree-of-freedom system. Investigations show that the proposed absorber outperforms a conventional passive-type absorber throughout the tunable frequency range.
url http://dx.doi.org/10.1155/2015/676508
work_keys_str_mv AT toshihikokomatsuzaki designofarealtimeadaptivelytuneddynamicvibrationabsorberwithavariablestiffnesspropertyusingmagnetorheologicalelastomer
AT yoshioiwata designofarealtimeadaptivelytuneddynamicvibrationabsorberwithavariablestiffnesspropertyusingmagnetorheologicalelastomer
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