Low Cost Device for Experimental Tests of Electrorheological Fluids

Abstract:

Electrorheological fluids (ERFs) can change their shear stress and shear rate as a function of the electric field intensity thus, such fluids acts as Newtonian fluids, if no electric field is applied and, become non Newtonian fluids if the presence of an electric field. In the last years, a growth interest is manifested for incorporating smart fluids into structures, as clutches or dumpers. The ERFs shear rate and shear stress must be determined at the moment of designing such mechanical structures. The fluids viscosity is studied by aid of commercially available viscosimeters or rheometers, these do not have the possibility to apply an electric field to the studied fluids. The ER fluids must be studied into specific electric field intensity. This paper presents: a low cost experimental rheometer and experimental results obtained form a study of several commercially available ERFs.

• Periodical: Applied Mechanics and Materials (Volume 658)
• Pages: 575-580
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.658.575
• Online since: October 2014
• Authors: Beniamin Vasile Chetran*, Dan Mândru
• Keywords: Electrorheological Fluid, Electroviscous, Viscosimeter

References

[1] D. Mandru, O. Tatar, et. al., Actionari in mecanica fina si mecatronica, editura Alma Mater, Cluj Napoca, 2004 (in Romanian).

[2] M. Kohudic, Advances in electrorheological fluids, Technomic Publishing Company, ISBN 1-56676-196-4, (1994).

[3] B. Chetran, Studii si cercetări privind sistemele inteligente utilizate in kinetoterapie, PhD Thesis, Technical University of Cluj-Napoca, 2012 (in Romanian).

[4] C. Mavroidis, et al, Smart portable rehabilitation device, Proc. of IDETC/CIE ASME Int. Design Eng. Tecn. Conf., Long Beach (2005).

[5] R.P. Muetzel, R.A. Sayman, J.H. DeVore, Electrorheological Inertia Brake, U.S. Patent 0209902A1. (2007).

[6] J. Zhang, X. Gong, C. Lin, W. Wen, P. Sheng, Electrorheological Fluid Dynamics, Physical Review Letter, DOI: 10. 1103/PhysRevLett. 101. 194503 (2008).

[7] L.J. Kecskes, Assessment of Two Electro-Rheological Fluids for Use in Recoil Abatement Applications, Army Research Laboratory, ARL-TR-2483 (2001).

[8] Information on http: /s0835225mengsfer. weebly. com/rheometers. html.

[9] W. M. Wilson, Method and means for translating electrical impulses into mechanical force, U.S. Patent 2417850. (1947).

[10] E.C. McIntyre, F.E. Filisko, Squeeze Flow of Electrorheological Fluids Under Constant Volume, Journal of Intelligent Material Systems and Structures; 18 (2007) 1217 – 1220.

DOI: 10.1177/1045389x07083130

[11] D.S. Viswanath, T.K. Ghosh, D.H.L. Prasad, N.V.K. Dutt, K. I. Rani, Viscosity of Liquids Theory, Estimation, Experiment, and Data, Springer, (2007).

[12] C. Schaschke, Fluid mechanics, worked examples for engineers, Published by Institution of Chemical Engineers, Davis Building, ISBN 0 8 5295 4980, (2005).

[13] Information on http: /www. ptonline. com/articles/rheometers-which-type-is-right-for-you.