Force Effects on Rotor of Squeeze Film Damper Using Newtonian and Non-Newtonian Fluid

článek v časopise ve Web of Science, Jimp

angličtina

This article presents the evaluation of force effects on rotor of squeeze film damper. Rotor is eccentric placed and its motion is translate-circular. The amplitude of rotor motion is smaller than its initial eccentricity. The force effects are calculated from pressure and viscous forces which were gained by using computational modeling. Two types of fluid were considered as filling of damper. First type of fluid is Newtonian (has constant viscosity) and second type is magnetorheological fluid (does not have constant viscosity). Viscosity of non-Newtonian fluid is given using Bingham rheology model. Yield stress is a function of magnetic induction which is described by many variables. The most important variables of magnetic induction are electric current and gap width which is between rotor and stator. Comparison of application two given types of fluids is shown in results.

squeeze film damper, magnetorheological fluid, computational fluid dynamic

ŠEDIVÝ, D.; FERFECKI, P.; FIALOVÁ, S.

13. 6. 2017

University of West Bohemia, Pilsen

Pilsen, Czech Republic

1551-7616

AIP Conference Proceedings

1889

020034

Spojené státy americké

020034-1

020034-7

7

http://aip.scitation.org/doi/pdf/10.1063/1.5004368