THE ELECTRORHEOLOGICAL FLUIDS WITH HIGH SHEAR STRESS

2005 ◽  
Vol 19 (07n09) ◽  
pp. 1065-1070 ◽  
Author(s):  
KUNQUAN LU ◽  
RONG SHEN ◽  
XUEZHAO WANG ◽  
GANG SUN ◽  
WEIJIA WEN

A series of high performance ER fluids newly manufactured in our laboratory are presented. The yield stress of those ER fluids can reach several tens of kPa, 100 kPa and even 200 kPa, respectively. For understanding the high shear stress effect a model is proposed base on the electric field induced molecular bounding effect. The main effective factors in fabricating the high performance ER are discussed.

2007 ◽  
Vol 21 (28n29) ◽  
pp. 4798-4805 ◽  
Author(s):  
KUNQUAN LU ◽  
RONG SHEN ◽  
XUEZHAO WANG ◽  
GANG SUN ◽  
WEIJIA WEN ◽  
...  

The static and dynamic shear stress of newly developed electrorheological (ER) fluids can reach more than 100 kPa and over 60 kPa at 3 kV/mm, respectively. The high yield stress of those ER fluids and its near linear dependence on the electric field are different from the conventional ER fluids and can not be explained with traditional dielectric theory. Experiment demonstrates that the polar molecules adsorbed on the particles play crucial role in those ER fluids, which can be named as polar molecule type electrorheological (PM-ER) fluids. To explain PM-ER effect a model is proposed based on the interaction of polar molecule-charge in between the particles, where the local electric field is much higher than the external one and can cause the polar molecules aligning. The main effective factors for achieving high-performance PM-ER fluids are discussed.


2007 ◽  
Vol 21 (28n29) ◽  
pp. 4813-4818 ◽  
Author(s):  
RONG SHEN ◽  
XUEZHAO WANG ◽  
YANG LU ◽  
GANG SUN ◽  
WEIJIA WEN ◽  
...  

A series of ER fluids materials with high shear stress have been developed recently, which named as polar molecule dominated electrorheological (PM-ER) fluids. Difficulties have been met in shear stress measurement process due to the slide of PM-ER fluids on the surface of metallic electrodes. In this paper, two shearing configurations have been developed to remove the interface effect. The intrinsic shear stress of ER fluids can be obtained by using the devices.


2018 ◽  
Vol 10 (7) ◽  
pp. 6785-6792 ◽  
Author(s):  
Jinghua Wu ◽  
Lei Zhang ◽  
Xing Xin ◽  
Yang Zhang ◽  
Hui Wang ◽  
...  

2018 ◽  
Vol 39 (suppl_1) ◽  
Author(s):  
H Spillemaeker ◽  
A Dupont ◽  
A Kauskot ◽  
A Rauch ◽  
F Vincent ◽  
...  

1996 ◽  
Vol 45 (4) ◽  
pp. 640
Author(s):  
WANG ZUO-WEI ◽  
LIN ZHI-FANG ◽  
TAO RUI-BAO

Hypertension ◽  
2005 ◽  
Vol 45 (4) ◽  
pp. 672-680 ◽  
Author(s):  
Branko Braam ◽  
Remmert de Roos ◽  
Hans Bluyssen ◽  
Patrick Kemmeren ◽  
Frank Holstege ◽  
...  

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