Publication detail
Force Effects on Rotor of Squeeze Film Damper Using Newtonian and Non-Newtonian Fluid
ŠEDIVÝ, D. FERFECKI, P. FIALOVÁ, S.
English title
Force Effects on Rotor of Squeeze Film Damper Using Newtonian and Non-Newtonian Fluid
Type
journal article in Web of Science
Language
en
Original abstract
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.
English abstract
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.
Keywords in English
squeeze film damper, magnetorheological fluid, computational fluid dynamic
Released
13.06.2017
Publisher
University of West Bohemia, Pilsen
Location
Pilsen, Czech Republic
ISSN
1551-7616
Volume
1889
Number
020034
Pages from–to
020034-1–020034-7
Pages count
7
BIBTEX
@article{BUT139500,
author="Dominik {Šedivý} and Petr {Ferfecki} and Simona {Fialová},
title="Force Effects on Rotor of Squeeze Film Damper Using Newtonian and Non-Newtonian Fluid",
year="2017",
volume="1889",
number="020034",
month="June",
pages="020034-1--020034-7",
publisher="University of West Bohemia, Pilsen",
address="Pilsen, Czech Republic",
issn="1551-7616"
}