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Smart Rotors

  • Conference paper
Book cover Rotordynamics ’92

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Abstract

The phenomenon of electro-rheology relates to changes in rheology of certain dispersions upon application of electrical fields and appears as an increase to the resistance of flow, and in some cases conversion from a fluid to solid behavior, under an increasing electrical field. Most ER fluids consist of a dispersion of fine particles in a liquid medium with the addition of a surfactant agent, for example silica particles in transformer oil with water added as surfactant. The shear stress consists of the Newtonian resistance plus a constant shear which depends on the applied electric field.

Through the controlled bearing properties, active control of the rotor dynamic behavior can be achieved. Thus, for example, transition through the critical speed can be virtually eliminated through active control of the bearings.

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Author information

Authors and Affiliations

  1. School of Engineering and Applied Science, Washington University, St Louis, USA

    A. Dimarogonas & A. Kollias

Authors
  1. A. Dimarogonas
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  2. A. Kollias
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Editor information

Editors and Affiliations

  1. Department of Mechanical and Computer-Aided Engineering, Staffordshire Polytechnic, Beaconside, Stafford, ST18 0AD, UK

    Michael J. Goodwin BSc, PhD, CEng, MIMechE

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© 1992 Springer-Verlag London Limited

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Dimarogonas, A., Kollias, A. (1992). Smart Rotors. In: Goodwin, M.J. (eds) Rotordynamics ’92. Springer, London. https://doi.org/10.1007/978-1-4471-1979-1_13

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  • DOI: https://doi.org/10.1007/978-1-4471-1979-1_13

  • Publisher Name: Springer, London

  • Print ISBN: 978-3-540-19754-6

  • Online ISBN: 978-1-4471-1979-1

  • eBook Packages: Springer Book Archive

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