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7 - Electrorheological and Magnetorheological Fluids

Published online by Cambridge University Press:  18 December 2013

Inderjit Chopra  and
Jayant Sirohi
Inderjit Chopra
Affiliation:
University of Maryland, College Park
Jayant Sirohi
Affiliation:
University of Texas, Austin
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Summary

The previous chapters discuss the properties and behavior of active materials that existed in a solid state. These materials exhibited changes in properties and physical dimensions when subjected to an electric, magnetic, or thermal field. A special class of fluids exists that change their rheological properties on the application of an electric or a magnetic field. These controllable fluids can generally be grouped under one of two categories: electrorheological (ER) fluids and magnetorheological (MR) fluids. An electric field causes a change in the viscosity of ER fluids, and a magnetic field causes a similar change in MR fluids. The change in viscosity can be used in a variety of applications, such as controllable dampers, clutches, suspension shock absorbers, valves, brakes, prosthetic devices, traversing mechanisms, torque transfer devices, engine mounts, and robotic arms. Other applications such as electropolishing do not rely directly on the change in viscosity but rather on the ability to change properties of the fluid locally.

Most mechanical dampers consist of fixed damping that is designed as a compromise between a range of operating conditions. As a result, these devices do not provide an optimum level of damping for any specific operating environment. Using ER/MR fluid dampers, variable damping levels can be obtained, and the system performance can be optimized over a wide range of operating conditions. In such dampers, the resistance to flow and, consequently, the energy dissipation, can be modulated through the applied electric or magnetic field.

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Smart Structures Theory , pp. 685 - 738
Publisher: Cambridge University Press
Print publication year: 2013

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References

[1] W. M., Winslow. Method and means for translating electrical impulses into mechanical force. U.S. Patent 2, 417, 850, 1947.Google Scholar
[2] W. M., Winslow. Induced fibration of suspensions. Journal of Applied Physics, 20:1137–1140, 1949.Google Scholar
[3] W. M., Winslow. Field responsive fluid couplings. U.S. Patent 2,886, 151, 1959.Google Scholar
[4] J., Rabinow. The magnetic fluid clutch. AIEE Transactions, 67:1308–1315,1948.Google Scholar
[5] J., Rabinow. Magnetic fluid clutch. National Bureau of Standards Technical News Bulletin, 32(4):54–60,1948.Google Scholar
[6] J., Rabinow. Magnetic fluid torque and force transmitting device. U.S. Patent 2, 575, 360, 1951.Google Scholar
[7] K., Shimada, H., Nishida, and T., Fujita. Differences in steady charactersitics and response time of ERF on rotational flow between rotating disk and concentric cylinder. International Journal of Modern Physics B, 15(6-7):1050–1056, 2001.Google Scholar
[8] K. D., Weiss, J. D., Carlson, and D. A., Nixon. Viscoelastic properties of magneto- and electro-rheological fluids. Journal of Intelligent Material Systems and Structures, 5:772–775, 1994.Google Scholar
[9] G. A., Dimock, J.-H., Yoo, and N. M., Wereley. Quasi-steady Bingham biplastic analysis of electrorheological and magnetorheological dampers. Journal of Intelligent Material Systems and Structures, 13(9):549–559, 2002.Google Scholar
[10] P., Poddar, J. L., Wilson, H., Srikanth, J.-H., Yoo, N. M., Wereley, S., Kotha, L., Barghouty, and R., Radhakrishnan. Nanocomposite magneto-rheological fluids with uniformly dispersed Fe nanoparticles. Journal of Nanoscience and Nanotechnology, 4(1/2):192–196, 2004.Google Scholar
[11] Y., Choi, A. F., Sprecher, and H., Conrad. Vibration characteristics of a composite beam containing an electrorheological fluid. Journal of Intelligent Material Systems and Structures, 1:91–104, 1990.
[12] D. R., Gamota and F. E., Filisko. Dynamic mechanical studies of electrorheological materials: Moderate frequencies. Journal of Rheology, 35:399–425, 1991.
[13] M. R., Jolly, J. D., Carlson, and B. C., Munoz. A model of the behavior of magnetorheo-logical materials. Smart Materials and Structures, 5:607–614, 1996.
[14] H., Block and J. P., Kelly. Electro-rheology. Journal of Physics D: Applied Physics, 21: 1661–1667, 1988.
[15] D. W., Felt, M., Hagenbuchle, J., Liu, and J., Richard. Rheology of a magnetorheological fluid. Journal of Intelligent Material Systems and Structures, 7(5):589–593, 1996.Google Scholar
[16] G. M., Kamath, M. K., Hurt, and N. M., Wereley. Analysis and testing of Bingham plastic behavior in semi-active electrorheological fluid dampers. Smart Materials and Structures, 5:576–590, 1996.
[17] J. A., Powell. Modelling the oscillatory response of an electrorheological fluid. Smart Materials and Structures, 3:416–438, 1994.
[18] H. P., Gavin, R. D., Hanson, and F. E., Filisko. Electrorheological dampers, Part I: Analysis and design. Journal of Applied Mechanics, 63:669–675, 1996.
[19] D. L., Klass and T. W., Martinek. Electroviscous fluids. I. Rheological properties. Journal of Applied Physics, 38(1):67–74, 1967.Google Scholar
[20] K. D., Weiss and T. G., Duclos. Controllable fluids: Temperature dependence of post-yield properties. International Journal of Modern Physics B, 8(20&21):3015–3032, 1994.Google Scholar
[21] R. C., Ehrgott and S. F., Masri. Experimental characterisation of an electrorheological material subjected to oscillatory shear strains. Journal of Vibration and Acoustics, 116: 53–60, 1994.
[22] W. S., Yen and P. J., Achron. A study of the dynamic behavior of an electrorheological fluid. Journal of Rheology, 35:1375–1384,1991.Google Scholar
[23] H., Lee and S. B., Choi. Dynamic properties of an ER fluid under shear and flow modes. Material and Design, 23(1):69–76, 2002.Google Scholar
[24] O., Ashour and C., Rogers. Magnetorheological fluids: Materials, characterization and devices. Journal of Intelligent Material Systems and Structures, 7:123–130, 1996.
[25] Y-T., Choi and N. M., Wereley. Comparative analysis of the time response of electrorhe-ological and magnetorheological dampers using nondimensional parameters. Journal of Intelligent Materials Systems and Structures, 13(7):443–451, 2002.Google Scholar
[26] J. D., Carlson. What makes a good MR fluid? In 8th International Conference on ER Fluids and MR Fluids Suspensions, Nice, 9-13 July 2001.Google Scholar
[27] K. D., Weiss, T. G., Duclos, J. D., Carlson, M. J., Chrzan, and A. J., Margida. High-strength magneto- and electro-rheological fluids. Society of Automotive Engineering Transactions, SAE Paper No. 932451, pages 425–430, 1993.Google Scholar
[28] N., Makris, S. A., Burton, and D. P., Taylor. Electrorheological damper with annular ducts for seismic protection applications. Smart Materials and Structures, 5:551–564, 1996.
[29] B. F., Spencer Jr., S. J., Dyke, M. K., Sain, and J. D., Carlson. Phenomenological model of a magnetorheological damper. Journal of Engineering Mechanics, 123:230–238, 1997.
[30] R., Stanway, J. L., Sproston, and N. G., Stevens. Non-linear modeling of an electro-rheological vibration damper. Journal of Electrostatics, 20:167–184, 1987.
[31] D. A., Brooks. Design and development of flow based electrorheological devices. International Journal of Modern Physics B, 6:2705–2730, 1992.
[32] T. G., Duclos. Design of devices using electrorheological fluids. Society of Automotive Engineering Transactions, Sec. 2, SAE Paper No. 881134, 97:2532–2536, 1988.
[33] D. J., Peel, W. A., Bullough, and R., Stanway. Dynamic modeling of an ER vibration damper for vehicle suspension applications. Smart Materials and Structures, 5(5):591–606, 1996.Google Scholar
[34] R., Stanway, J. L., Sproston, and A. K., El-Wahed. Application of electrorheological fluids in vibration control: A survey. Smart Materials and Structures, 5:464–482,1996.Google Scholar
[35] R., Stanway, J., Sproston, and R., Firoozian. Identification of the damping law of an electro-rheological fluid: A sequential filtering approach. ASME Journal of Dynamic Systems, Measurement and Control, 111:91–96, March 1989.Google Scholar
[36] R. C., Ehrgott and S. F., Masri. Modeling the oscillatory dynamic behavior of electro-rheological materials. Smart Materials and Structures, 1:275–285,1992.Google Scholar
[37] S. F., Masri, R., Kumar, and R. C., Ehrgott. Modeling and control of an electrorheological device for structural control applications. Smart Materials and Structures, 4(1A):A121–A123, 1995.Google Scholar
[38] T., Butz and O., von Stryk. Modelling and simulation of electro- and magnetorheological fluid dampers. Zeitschrift fur Angewandte Mathematik und Mechanik, 82(1):3–20, 2002.Google Scholar
[39] D. Y., Lee, Y.-T., Choi, and N. M., Wereley. Performance analysis of ER/MR impact damper systems using Hershcel-Bulkley model. Journal of Intelligent Material Systems and Structures, 13:525–531, 2002.
[40] D. Y., Lee and N. M., Wereley. Quasi-steady Herschel-Bulkley analysis of electro- and magneto-rheological flow mode dampers. Journal of Intelligent Material Systems and Structures, 10:761–769, 1999.
[41] B., Bird, R., Armstrong, and O., Hassager. Dynamics of Polymeric Fluids. John Wiley and Sons, New York, 1987.Google Scholar
[42] S. A., Burton, N., Makris, I., Konstantopoulos, and P. J., Antsaklis. Modeling the response of ER damper: phenomenology and emulation. Journal of Engineering Mechanics, 122: 897–906, 1996.
[43] G. M., Kamath and N. M., Wereley. A non-linear viscoelastic-plastic model for electrorheological fluids. Smart Materials and Structures, 6:351–359, 1997.
[44] Y.-T., Choi, L., Bitman, and N. M., Wereley. Nondimensional analysis of electrorheolog-ical dampers using an Eyring constitutive relationship. Journal of Intelligent Material Systems and Structures, 16:383–394, May 2005.Google Scholar
[45] J. C., Dixon. The Shock Absorber Handbook. Society of Automotive Engineers, Inc., Warrendale, PA, 1999.Google Scholar
[46] VersaFlo Fluids Product Information, ER-100 Fluid Form PI01-ER100A. Lord Corporation, Cary, NC, 1996.
[47] A. K., El Wahed, J. L., Sproston, and R., Stanway. The rheological characteristics of electrorheological fluids in dynamic squeeze. Journal of Intelligent Materials Systems and Structures, 13(10):655–660, 2002.Google Scholar
[48] A. K., El Wahed, J. L., Sproston, and R., Stanway. The performance of an electrorheological fluid in dynamic squeeze flow: The influence of solid phase size. Journal of Colloid and Interface Science, 211(2):264–280, 1999.Google Scholar
[49] R. J., Atkin, X., Shi, and W. A., Bullough. Solutions of the constitutive equations for the flow of an electrorheological fluid in radial configurations. Journal of Rheology, 35(7): 1441–1461, 1991.Google Scholar
[50] J. H., Yoo and N. M., Wereley. Approximating annular duct flow in ER/MR dampers using a rectangular duct. Proceedings of FEDSM03, 4th ASME/JSME Joint Fluids Engineering Conference(#FEDSM03/45034), July 2003.Google Scholar
[51] M., Nilsson and N. G., Ohlson. An electrorheological fluid in squeeze mode. Journal of Intelligent Material Systems and Structures, 11(7):545–554, 2000.Google Scholar

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