The integrity and reliability of a rotor depends significantly on the dynamic characteristics of its bearings. Bearing design has been altered in many ways in order to achieve improvement in terms of damping and stiffness. A promising field in terms of vibrations control and overall performance improvement for the journal bearings is the use of smart lubricants. Smart lubricants are fluids with controllable properties. A suitable excitation, such as an electric or a magnetic field, is used as a means of smart fluid properties control. Magnetorheological (MR) fluids consist one category of lubricants with controllable properties thanks to magnetic particles inside the fluid volume. In this case of material, a magnetostatic field affects the apparent viscosity of the fluid by aligning the magnetic particles into chains. In this work a magnetorheological fluid is produced. A magnetorheological fluid film bearing was constructed, capable of exciting the magnetorheological fluid. These bearing performances are examined experimentally and its dynamic properties are evaluated using an impact excitation method for a SAE-10W lubricant as well as with the produced magnetorheological fluid both in its active and in its inactive state.
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ASME Turbo Expo 2014: Turbine Technical Conference and Exposition
June 16–20, 2014
Düsseldorf, Germany
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-4558-5
PROCEEDINGS PAPER
Experimental and Analytical Investigations of Dynamic Characteristics of Magnetorheological and Nano Magnetorheological Fluid Film Journal Bearing Available to Purchase
Dimitrios A. Bompos,
Dimitrios A. Bompos
University of Patras, Patras, Greece
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Pantelis G. Nikolakopoulos
Pantelis G. Nikolakopoulos
University of Patras, Patras, Greece
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Dimitrios A. Bompos
University of Patras, Patras, Greece
Pantelis G. Nikolakopoulos
University of Patras, Patras, Greece
Paper No:
GT2014-25219, V01BT24A005; 8 pages
Published Online:
September 18, 2014
Citation
Bompos, DA, & Nikolakopoulos, PG. "Experimental and Analytical Investigations of Dynamic Characteristics of Magnetorheological and Nano Magnetorheological Fluid Film Journal Bearing." Proceedings of the ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. Volume 1B: Marine; Microturbines, Turbochargers and Small Turbomachines; Steam Turbines. Düsseldorf, Germany. June 16–20, 2014. V01BT24A005. ASME. https://doi.org/10.1115/GT2014-25219
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