Vibration damper using electrorheological fluids in squeeze: Experimental validation of theoretical models

Ali K. El Wahed*, John L. Sproston, Wyn Williams, Roger Stanway

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper is concerned with an experimental investigation of the performance of an ER fluid in oscillatory squeeze flow within a short-stroke vibration damper and the development of a time-dependent theoretical model. The fluid is sandwiched between two parallel electrodes, the upper one fixed and the lower one oscillating normal to its plane. Of particular interest is the variation in the force transmitted through the fluid in response to changes in oscillation frequency and applied field. Since the amplitude of the input disturbance is field dependent, attention was also focused on the performance of the damper when the amplitude was maintained constant under feedback control. Finally the paper compares the experimentally derived data with results from a theoretical model which assumes quasi-static behaviour of the fluid approximated by a viscosity characteristic with post-yield shear-rate dependence.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
PublisherASME
Pages1-13
Number of pages13
Volume235
Publication statusPublished - 1995
EventProceedings of the 1995 ASME International Mechanical Engineering Congress and Exposition - San Francisco, CA, USA, United Kingdom
Duration: 12 Nov 199517 Nov 1995

Conference

ConferenceProceedings of the 1995 ASME International Mechanical Engineering Congress and Exposition
Country/TerritoryUnited Kingdom
CitySan Francisco, CA, USA
Period12/11/9517/11/95

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