title: Note: Vibration suppression using tunable vibration absorber based on stiffness variable magneto-rheological gel.
abstract: This paper proposes a novel adaptive tunable vibration absorber (TVA) based on a smart material the magnetorheological gel (MRG) to achieve a wide range of tonal vibration suppression on the primary system to protect any connected sensitive device. The vibration suppression performance of the MRG TVA was analyzed by conducting a modal test of the primary system under different magnetic fields. The experiment verified that the proposed MRG TVA can be controlled to produce 379% of stiffness change or 115% of tuning frequency under just 200 mT magnetic field. The proposed MRG TVA was found to possess a wider tuning frequency range than the TVA based on other smart material such as magnetorheological elastomer.
authors.affiliation: Department of Mechanical and Control Engineering, Handong Global University, Pohang 791-708, South Korea.
authors.forename: Beom-Cheol
authors.initials: BC
authors.lastname: Shin
authors.affiliation: Department of Mechanical and Control Engineering, Handong Global University, Pohang 791-708, South Korea.
authors.forename: Jung-Hwan
authors.initials: JH
authors.lastname: Yoon
authors.affiliation: Department of Mechanical and Control Engineering, Handong Global University, Pohang 791-708, South Korea.
authors.forename: Young-Keun
authors.initials: YK
authors.lastname: Kim
authors.affiliation: Department of Mechanical Engineering, KAIST, Daejeon 305-701, South Korea.
authors.forename: Kyung-Soo
authors.initials: KS
authors.lastname: Kim