TY - GEN
T1 - Development of anti-sedimentation magnetorheological fluids and its implementation to MR damper
AU - Zhang, Peizhi
AU - Kamezaki, Mitsuhiro
AU - Otsuki, Kenshiro
AU - He, Zhuoyi
AU - Sakamoto, Hiroyuki
AU - Sugano, Shigeki
N1 - Funding Information:
This research was supported in part by JSPS KAKENHI Grant Number 16K06196, in part by the New Energy and Industrial Technology Development Organization (NEDO), and in part by the Research Institute for Science and Engineering, Waseda Univ.
Publisher Copyright:
© 2019 IEEE.
PY - 2019/7
Y1 - 2019/7
N2 - Magnetorheological Fluid (MRF) is a functional fluid in which apparent viscosity changes quickly, continuously and reversibly according to the strength of the magnetic field applied. On the basis of the peculiar features of MRFs various studies have been conducted mainly on functional fluids in the power fluid field. MRF consists of magnetic substances of the size 1-10 μm which are dispersed in lubrication oil having low viscosity and specific gravity. There is no MRF which can be used in robots for precise control because it cannot guarantee the reliability. We here aim to acquire advanced robot mechanism by fusing material-mechanical technology and crossing hypothesis-experiment cycle. As a result, we found that anti-sedimentation of MRF can be regarded as the most important features for implementation in robotic mechanisms. In this paper, the anti-sedimentation MRF is manufactured and tested in a MRF damper. We first obtained a common method to manufacture the anti-sedimentation MR fluid, by designing the medium, the magnetic substance, and the additive. In the sedimentation test, the proposed MR fluid had the minimum separation compared to the commercial product. Secondly, in experiment using the MR damper, the anti-sedimentation MRF had superior stability compared to the commercial product.
AB - Magnetorheological Fluid (MRF) is a functional fluid in which apparent viscosity changes quickly, continuously and reversibly according to the strength of the magnetic field applied. On the basis of the peculiar features of MRFs various studies have been conducted mainly on functional fluids in the power fluid field. MRF consists of magnetic substances of the size 1-10 μm which are dispersed in lubrication oil having low viscosity and specific gravity. There is no MRF which can be used in robots for precise control because it cannot guarantee the reliability. We here aim to acquire advanced robot mechanism by fusing material-mechanical technology and crossing hypothesis-experiment cycle. As a result, we found that anti-sedimentation of MRF can be regarded as the most important features for implementation in robotic mechanisms. In this paper, the anti-sedimentation MRF is manufactured and tested in a MRF damper. We first obtained a common method to manufacture the anti-sedimentation MR fluid, by designing the medium, the magnetic substance, and the additive. In the sedimentation test, the proposed MR fluid had the minimum separation compared to the commercial product. Secondly, in experiment using the MR damper, the anti-sedimentation MRF had superior stability compared to the commercial product.
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U2 - 10.1109/AIM.2019.8868739
DO - 10.1109/AIM.2019.8868739
M3 - Conference contribution
AN - SCOPUS:85074269623
T3 - IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM
SP - 400
EP - 405
BT - Proceedings of the 2019 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2019
Y2 - 8 July 2019 through 12 July 2019
ER -