TY - JOUR
T1 - Basic characteristics of ER gel on one-sided structured electrodes (2nd report) relation between structure of one-sided electrodes and ER effect using an opposed metal material
AU - Kakinuma, Yasuhiro
AU - Aoyama, Tojiro
AU - Anzai, Hidenobu
AU - Tanaka, Katsutoshi
N1 - Copyright:
Copyright 2010 Elsevier B.V., All rights reserved.
PY - 2007
Y1 - 2007
N2 - Electro-rheological Gel (ERG) is developed to overcome two defects of Electro-rheological Fluid (ERF); one is sedimentation of ER particles, the other is that the seal structure is needed to apply ERF to machine elements. The developed ERG is composed of ER particles and silicone gel. The ER particles are sustained by the gel component, and thus will not precipitate out, which suppresses the decrease in ER effect associated with precipitation. The ERG shows the wide range of shear stress variation in response to the applied electric field. This high performance of ERG is originated in a different mechanism from the ERFs. To apply the electric field to the ERG, it is necessary to sandwich the ERG between plane-parallel electrodes. However, it is not convenient for the practical use to wire the both of electrodes for high voltage supply. In this study, the one-sided structured electrodes are proposed in order to simplify the structure of the wiring. When the conductive material is used as the opposed plate, the basic characteristics of ERG on one-sided electrodes are evaluated numerically and experimentally. The result shows that ER effect depends on the electrode pattern. Moreover, the yield stress of ERG on one-sided electrodes can be calculated by using the result of electric field analysis and the relation of parallel electrodes between electric field and yield stress.
AB - Electro-rheological Gel (ERG) is developed to overcome two defects of Electro-rheological Fluid (ERF); one is sedimentation of ER particles, the other is that the seal structure is needed to apply ERF to machine elements. The developed ERG is composed of ER particles and silicone gel. The ER particles are sustained by the gel component, and thus will not precipitate out, which suppresses the decrease in ER effect associated with precipitation. The ERG shows the wide range of shear stress variation in response to the applied electric field. This high performance of ERG is originated in a different mechanism from the ERFs. To apply the electric field to the ERG, it is necessary to sandwich the ERG between plane-parallel electrodes. However, it is not convenient for the practical use to wire the both of electrodes for high voltage supply. In this study, the one-sided structured electrodes are proposed in order to simplify the structure of the wiring. When the conductive material is used as the opposed plate, the basic characteristics of ERG on one-sided electrodes are evaluated numerically and experimentally. The result shows that ER effect depends on the electrode pattern. Moreover, the yield stress of ERG on one-sided electrodes can be calculated by using the result of electric field analysis and the relation of parallel electrodes between electric field and yield stress.
KW - Basic characteristics
KW - Electro-rheological fluids
KW - Electro-rheological gel
KW - One-sided electrodes
UR - http://www.scopus.com/inward/record.url?scp=77950272430&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77950272430&partnerID=8YFLogxK
U2 - 10.2493/jjspe.73.792
DO - 10.2493/jjspe.73.792
M3 - Article
AN - SCOPUS:77950272430
VL - 73
SP - 792
EP - 797
JO - Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering
JF - Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering
SN - 0912-0289
IS - 7
ER -