Publication detail

Influence of Eccentricity and Angular Velocity on Force Effects on Rotor of Magnetorheological Damper

ŠEDIVÝ, D. FERFECKI, P. FIALOVÁ, S.

English title

Influence of Eccentricity and Angular Velocity on Force Effects on Rotor of Magnetorheological Damper

Type

conference paper

Language

en

Original abstract

This article presents the evaluation of force effects on squeeze film damper rotor. The rotor is placed eccentrically 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 measured by using computational modeling. Damper was filled with magnetorheological fluid. Viscosity of this non- Newtonian fluid is given using Bingham rheology model. Yield stress is not constant and it 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 between rotor and stator. The simulations were made in finite volume method based solver. The motion of the inner ring of squeeze film damper was carried out by dynamic mesh. Numerical solution was solved for five different initial eccentricities and angular velocities of rotor motion.

English abstract

This article presents the evaluation of force effects on squeeze film damper rotor. The rotor is placed eccentrically 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 measured by using computational modeling. Damper was filled with magnetorheological fluid. Viscosity of this non- Newtonian fluid is given using Bingham rheology model. Yield stress is not constant and it 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 between rotor and stator. The simulations were made in finite volume method based solver. The motion of the inner ring of squeeze film damper was carried out by dynamic mesh. Numerical solution was solved for five different initial eccentricities and angular velocities of rotor motion.

Keywords in English

Magnetorheological damper, force effect, eccentricity, simulations

Released

04.06.2018

ISSN

2100-014X

Book

EPJ Web of Conferences

Volume

180

Pages from–to

555–559

Pages count

5

BIBTEX


@inproceedings{BUT142526,
  author="Dominik {Šedivý} and Petr {Ferfecki} and Simona {Fialová},
  title="Influence of Eccentricity and Angular Velocity on Force Effects on Rotor of Magnetorheological Damper",
  booktitle="EPJ Web of Conferences",
  year="2018",
  volume="180",
  month="June",
  pages="555--559",
  issn="2100-014X"
}