Research on characterization method and influencing factors of sedimentation stability of magnetorheological fluid

2021 ◽  
Vol 33 (4) ◽  
pp. 309-320
Author(s):  
Yuqing Li ◽  
Yiping Luo ◽  
Ying Wang ◽  
Jiao Luo ◽  
Yameng Chen
Keyword(s):  
Influencing Factors ◽  
Magnetorheological Fluid ◽  
Sedimentation Stability

Synthesis of calcium ferrite nanocrystal clusters for magnetorheological fluid with enhanced sedimentation stability

2017 ◽  
Vol 322 ◽  
pp. 47-53 ◽  
Author(s):  
Guangshuo Wang ◽  
Dexing Zhao ◽  
Yingying Ma ◽  
Zhixiao Zhang ◽  
Hongwei Che ◽  
...  
Keyword(s):  
Magnetorheological Fluid ◽  
Calcium Ferrite ◽  
Sedimentation Stability

Magnesium ferrite nanocrystal clusters for magnetorheological fluid with enhanced sedimentation stability

2017 ◽  
Vol 63 ◽  
pp. 70-75 ◽  
Author(s):  
Guangshuo Wang ◽  
Yingying Ma ◽  
Meixia Li ◽  
Guohua Cui ◽  
Hongwei Che ◽  
...  
Keyword(s):  
Magnetorheological Fluid ◽  
Magnesium Ferrite ◽  
Sedimentation Stability

scholarly journals Numerical Simulation and Experimental Analysis of Microstructure of Magnetorheological Fluid

2019 ◽  
Vol 2019 ◽  
pp. 1-17 ◽  
Author(s):  
Dongsheng Ji ◽  
Yiping Luo ◽  
Hongjuan Ren ◽  
Dan Wei ◽  
Jun Shao
Keyword(s):  
Numerical Simulation ◽  
Influencing Factors ◽  
Shear Force ◽  
Magnetic Particles ◽  
Deep Understanding ◽  
Magnetorheological Fluid ◽  
Point Of View ◽  
Macroscopic Properties ◽  
New Type ◽  
Numerical Calculation Method

Magnetorheological fluid is a new type of smart material that is sensitive to magnetic fields and has controllable performance. It is widely regarded for its unique magnetorheological effect and good rheological properties. For materials, the microstructure determines its macroscopic properties. In order to better study its macroscopic properties, it is necessary to have a more comprehensive understanding and deep understanding of its microstructure. In this paper, the magnetization process of magnetorheological fluid is analyzed from a microscopic point of view. Based on Newton’s second law, the dynamic model of particle motion is established. The magnetic force, repulsive force, and viscous resistance of magnetic particles are analyzed. The finite difference numerical calculation method is used. The velocity-Verlet algorithm simulates the static microstructure chaining process of the magnetorheological fluid and the dynamic chaining process under shear force under different influencing factors. At the same time, a static observation device and a shear observation device were developed to observe the microstructure chaining morphology of magnetorheological fluid under different influencing factors, and to study the dynamic chaining law of magnetorheological fluid under the action of a shear force. Therefore, a reasonable contrast index is established, and the numerical simulation results are compared with the experimental observation results.

Research Progress on Magnetorheological Fluid

2014 ◽  
Vol 633-634 ◽  
pp. 337-340 ◽  
Author(s):  
Yan Lan Li ◽  
Xing Quan Shen
Keyword(s):  
Smart Materials ◽  
Magnetorheological Fluid ◽  
Fast Response ◽  
Research Progress ◽  
Zero Field ◽  
Comprehensive Overview ◽  
Sedimentation Stability ◽  
Research Survey ◽  
New Type ◽  
Dynamic Yield

Magnetorheological fluid is a new type of smart materials taken seriously in recent years, which has good performance of sedimentation stability , high dynamic yield stress, easily dispersed , low zero-field viscosity , fast response time , wide operating temperature range. In the magnetic field, its rheological properties can be made quickly respond easily and reversible control and it has excellent prospects. This paper studies a more comprehensive overview of MRF conduct in the nearest 20 years. The presented content are: MRF research survey, composition, performance and prospects.

Controlled synthesis of CoFe2O4/MoS2 nanocomposites with excellent sedimentation stability for magnetorheological fluid

2019 ◽  
Vol 70 ◽  
pp. 439-446 ◽  
Author(s):  
Guangshuo Wang ◽  
Fei Zhou ◽  
Ziwei Lu ◽  
Yingying Ma ◽  
Xiaoguang Li ◽  
...  
Keyword(s):  
Magnetorheological Fluid ◽  
Controlled Synthesis ◽  
Sedimentation Stability

scholarly journals Preparation and Rheology of Magnetorheological Fluid Using Six Kinds of Fumed Silica as Stabilizing Additives

2021 ◽  
Vol 333 ◽  
pp. 02006
Author(s):  
Makoto Kanda ◽  
Aya Kaide ◽  
Takashi Saeki ◽  
Hiroshi Tochigi
Keyword(s):  
Fumed Silica ◽  
Surface Characteristics ◽  
Magnetorheological Fluid ◽  
Silica Particles ◽  
Sedimentation Stability ◽  
Flow Measurements ◽  
Oil Separation ◽  
Lower Shear ◽  
Transmission Electron ◽  
Lower Shear Rate

In this study, magnetorheological fluid (MRF) was prepared with several kinds of hydrophobic fumed silica in order to improve MRF stability while maintaining desirable fluidity. We conducted steady flow measurements and oil separation tests under gravity and centrifugal conditions. The linkage of fumed silica particles was also observed morphologically by transmission electron microscopy. We found that the MRF sedimentation stability correlated with viscosity in the lower shear rate range. The oil separation ratio improved with the addition of the fumed silicas examined in this study. The surface characteristics of the silica particles affected the stabilization ability. The addition of hydrophobic fumed silica can desirably increase MRF magnetic properties.

Preparation of magnetorheological fluid with excellent sedimentation stability

2020 ◽  
Vol 35 (10) ◽  
pp. 1077-1083 ◽  
Author(s):  
Chen Fei ◽  
Li Haopeng ◽  
Han Mengmeng ◽  
Tian Zuzhi ◽  
Li Aimin
Keyword(s):  
Magnetorheological Fluid ◽  
Sedimentation Stability
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