Electro-stress and electron-hydraulic time delay are investigated in shear mode tests on ERF (electro-rheological fluid). These parameters are examined using a concentric, Couette clutch operating over a range of shear rates, volume fraction of solid in the ERF, and temperature. Pointers to system design, associated control strategy, fluid selection and optimal operating conditions are derived from these results.
Issue Section:
Technical Papers
Topics:
Shear (Mechanics),
Shear rate,
Delays,
Design,
Electrons,
Electrorheological fluids,
Fluids,
Stress,
Temperature
1.
Bullough
W. A.
Firoozian
R.
Johnson
A. R.
Hosseini-Sianaki
A. H.
Makin
J.
Xiao
S.
1992
, “Fast Pick-Up and Drop Load Performance of a Low Electrical and Mechanical Time Constant Electro-Rheologically Based Clutch
,” Mechatronic Systems Engineering
, Vol. 4
, pp. 315
–327
.2.
Filisko, F. E., 1991, “Rheological Properties and Models of Dry ER Materials,” Proceedings 3rd International Conference on Electrorheological Fluids, Carbondale, pp. 116–128.
3.
Firoozian, R., Bullough, W. A., Hosseini-Sianaki, A. H., Johnson, A. R., Makin, J., and Xiao, S., 1991, “Control Techniques for Electro-Rheological Fluids,” Proceedings 24th ISATA International Symposium on Automotive Technology and Automation, Florence, pp. 479–487.
4.
Hosseini-Sianaki, A., Bullough, W. A., Firoozian, R., Makin, J., Johnson, A. R., and Xiao, S., 1992, “The High Speed Electro-Rheological Catch,” Proceedings Actuator 92, Bremen, VDI/E, (German Association of Engineers), pp. 118–122.
5.
Johnson
A. R.
Bullough
W. A.
Firoozian
R.
Hosseini-Sianaki
A. H.
Makin
J.
Xiao
S.
1992
, “Testing on a High Speed E. R. Clutch
,” International Journal of Modern Physics-B
, Vol. 6
, No. 15–16
, pp. 2731
–2747
.6.
Johnson
A. R.
Makin
J.
Bullough
W. A.
Firoozian
R.
Hosseini-Sianaki
A.
1993
, “Fluid Durability in a High Speed Electro-Rheological Clutch
,” Journal of Intelligent Material Systems and Structures
, Vol. 4
, No. 4
, pp. 527
–532
.7.
Peel
D. J.
Bullough
W. A.
1993
, “The Effect of Flowrate, Excitation and Solids Concentration on the Time Response an Electro-Rheological Valve
,” Journal of Intelligent Material Systems and Structures
, Vol. 4
. No. 1
, pp. 54
–64
.8.
Whittle, M., Firoozian, R., Peel, D. J., and Bullough, W. A., 1992, “A Model for the Electrical Characteristics of an ER Valve,” Journal of Modern Physics B, pp. 109–140.
9.
Weiss
K. D.
Carlson
J. D.
Coulter
J. P.
1993
, “Material Aspects of Electrorheological Systems
,” Journal of Intelligent Material Systems and Structures
, Vol. 4
. No. 1
, pp. 13
–34
.
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