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 language | English |
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Title of host publication | American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED |
Publisher | ASME |
Pages | 1-13 |
Number of pages | 13 |
Volume | 235 |
Publication status | Published - 1995 |
Event | Proceedings of the 1995 ASME International Mechanical Engineering Congress and Exposition - San Francisco, CA, USA, United Kingdom Duration: 12 Nov 1995 → 17 Nov 1995 |
Conference
Conference | Proceedings of the 1995 ASME International Mechanical Engineering Congress and Exposition |
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Country/Territory | United Kingdom |
City | San Francisco, CA, USA |
Period | 12/11/95 → 17/11/95 |