By Faramarz Gordaninejad, Olivia Graeve, Alan Fuchs
ERMR 2006 incorporated invited audio system, technical displays, poster shows, and a scholar paper pageant. on the convention ceremonial dinner, Dr. David Carlson of Lord company addressed the convention attendees and gave a stirring speech at the heritage of ER and MR fluids, in addition to present and destiny purposes. a distinct characteristic of the ERMR meetings is they comprehensively disguise matters starting from physics to chemistry to engineering functions of ER and MR fabrics held in a normal consultation to augment the interplay among the scientists and engineers. The periods in ERMR 2006 have been prepared established into Symposia: a) fabrics and b) functions. issues lined within the fabrics Symposium integrated: mechanisms, practise, and characterization of ER and MR fabrics. themes coated within the functions Symposium incorporated: ER and MR units, regulate platforms, approach integration, and purposes. This constitution used to be applied in an effort to allow interplay among attending scientists and engineers in either the fabrics Symposium and the functions Symposium, and to reinforce the loose circulate of principles, and the capability collaborative study possibilities.
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Extra info for 2006 international conference on electrorheological fluids and magnetorheological suspensions
3 The ERG effect for various insulating materials When the blue glass is used for shear test, the behaviors of shear stress under a variable electric field, for instance, are shown in Fig. 10. When the displacement of the sliding plate increases, the shear stress shows yielding. Beyond the yield point, the sliding plate begins to slip on the ERG surface. The shear stress at the yield point is defined as yield stress. Higher yield stress was obtained under higher electric field. 07kPa. It is clear that the blue glass is one of the insulating materials which provide the remarkable ERG effect in the one-sided electrodes.
We also applied this viscosity reduction method to crude oil (2). To be specific, the paraffin-base crude oil can have its viscosity reduced by a pulsed magnetic field and the asphalt-base crude oil can have its viscosity reduced a pulsed electric field. These positive experimental results indicate that this method, developed from the basic mechanism of viscosity, is universal and powerful for all liquid suspensions with broad applications. References 1. 2. A. 3. R. Von Flatern, Offshore 57, N3,28-3 1 (1997).
This observation proves that a kind of superstructure is formed within an ER fluid as a result of combined action of electric and shear fields. 5 E. kVlmm Figure 7. Comparison of yield stress values estimated by static (st) and dynamic (d) methods as function of electric field strength. These superstructures have been already reported in the literature [ 121. They have very strong influence on the reproducibility of the results obtained in our arrangement. As already mentioned the data presented here were recorded on fresh fluids that were not sheared before the measurement.