Physical properties and damping characteristics of MR fluids in low magnetic fields

Tadamasa Oyama; Toyohisa Fujita; Hideya Nishiyama

doi:10.1299/kikaib.66.646_1372

Physical properties and damping characteristics of MR fluids in low magnetic fields

Tadamasa Oyama, Toyohisa Fujita, Hideya Nishiyama

Creative Flow Research Division

Research output: Contribution to journal › Article › peer-review

Abstract

Magnetic fluid and MR fluids are representative functional fluids because their properties and characteristics can be controlled easily by applying a magnetic field. Especially, MR fluids has controllable high viscosity, high sensitivity, controllable large yield stress and strong magnetic force in the applied magnetic field due to the robust cluster formation compared with those of magnetic fluid. In the present study, two kinds of nano-MR fluids dispersed iron particle with different diameters are prepared. Vizualization of cluster formation of particles and measurements of physical properties are conducted in the low applied magnetic fields. Finally, damping characteristics of an oscillating flat plate immersed in MR fluids under the low applied magnetic fields are compared with those of magnetic fluid.

Original language	English
Pages (from-to)	1372-1376
Number of pages	5
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	66
Issue number	646
DOIs	https://doi.org/10.1299/kikaib.66.646_1372
Publication status	Published - 2000 Jun

Keywords

Cluster
Drag force
Functional fluids
Low magnetic field
MR fluids
Magnetic fluid
Viscosity
Viscous damping coefficient

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1299/kikaib.66.646_1372

Fingerprint Dive into the research topics of 'Physical properties and damping characteristics of MR fluids in low magnetic fields'. Together they form a unique fingerprint.

Cite this

@article{1f5bd2fcb93d47939d01784931bb4b8b,

title = "Physical properties and damping characteristics of MR fluids in low magnetic fields",

abstract = "Magnetic fluid and MR fluids are representative functional fluids because their properties and characteristics can be controlled easily by applying a magnetic field. Especially, MR fluids has controllable high viscosity, high sensitivity, controllable large yield stress and strong magnetic force in the applied magnetic field due to the robust cluster formation compared with those of magnetic fluid. In the present study, two kinds of nano-MR fluids dispersed iron particle with different diameters are prepared. Vizualization of cluster formation of particles and measurements of physical properties are conducted in the low applied magnetic fields. Finally, damping characteristics of an oscillating flat plate immersed in MR fluids under the low applied magnetic fields are compared with those of magnetic fluid.",

keywords = "Cluster, Drag force, Functional fluids, Low magnetic field, MR fluids, Magnetic fluid, Viscosity, Viscous damping coefficient",

author = "Tadamasa Oyama and Toyohisa Fujita and Hideya Nishiyama",

year = "2000",

month = jun,

doi = "10.1299/kikaib.66.646_1372",

language = "English",

volume = "66",

pages = "1372--1376",

journal = "Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B",

issn = "0387-5016",

publisher = "Japan Society of Mechanical Engineers",

number = "646",

}

TY - JOUR

T1 - Physical properties and damping characteristics of MR fluids in low magnetic fields

AU - Oyama, Tadamasa

AU - Fujita, Toyohisa

AU - Nishiyama, Hideya

PY - 2000/6

Y1 - 2000/6

N2 - Magnetic fluid and MR fluids are representative functional fluids because their properties and characteristics can be controlled easily by applying a magnetic field. Especially, MR fluids has controllable high viscosity, high sensitivity, controllable large yield stress and strong magnetic force in the applied magnetic field due to the robust cluster formation compared with those of magnetic fluid. In the present study, two kinds of nano-MR fluids dispersed iron particle with different diameters are prepared. Vizualization of cluster formation of particles and measurements of physical properties are conducted in the low applied magnetic fields. Finally, damping characteristics of an oscillating flat plate immersed in MR fluids under the low applied magnetic fields are compared with those of magnetic fluid.

AB - Magnetic fluid and MR fluids are representative functional fluids because their properties and characteristics can be controlled easily by applying a magnetic field. Especially, MR fluids has controllable high viscosity, high sensitivity, controllable large yield stress and strong magnetic force in the applied magnetic field due to the robust cluster formation compared with those of magnetic fluid. In the present study, two kinds of nano-MR fluids dispersed iron particle with different diameters are prepared. Vizualization of cluster formation of particles and measurements of physical properties are conducted in the low applied magnetic fields. Finally, damping characteristics of an oscillating flat plate immersed in MR fluids under the low applied magnetic fields are compared with those of magnetic fluid.

KW - Cluster

KW - Drag force

KW - Functional fluids

KW - Low magnetic field

KW - MR fluids

KW - Magnetic fluid

KW - Viscosity

KW - Viscous damping coefficient

UR - http://www.scopus.com/inward/record.url?scp=71249116103&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=71249116103&partnerID=8YFLogxK

U2 - 10.1299/kikaib.66.646_1372

DO - 10.1299/kikaib.66.646_1372

M3 - Article

AN - SCOPUS:71249116103

VL - 66

SP - 1372

EP - 1376

JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

SN - 0387-5016

IS - 646

ER -