Publication detail

Using of the long squeeze film dampers in rotor systems

HLAVOŇ, P. HOUFEK, L.

English title

Using of the long squeeze film dampers in rotor systems

Type

conference paper

Language

en

Original abstract

The present paper focuses on the issues of rotor systems with hydrodynamic dampers known as squeeze film dampers (SFD), which are non-linear hydraulic binding elements between the rotor and stator. The hydrodynamic dampers, with maximum discharged layer, have recently been applied more and more often thanks to their favourable characteristics, mainly in the rotor systems of aircraft engines. In principal, the dampers decrease amplitude of the actuated oscillations, primarily when crossing the critical speed. They tend to shift the amplitude-frequency characteristic of the whole system to lower values due to the supplementary material of oil film, preventing thus the transmission of vibrations on to the machine frame and, in fact, reducing noisiness of the whole equipment.

English abstract

The present paper focuses on the issues of rotor systems with hydrodynamic dampers known as squeeze film dampers (SFD), which are non-linear hydraulic binding elements between the rotor and stator. The hydrodynamic dampers, with maximum discharged layer, have recently been applied more and more often thanks to their favourable characteristics, mainly in the rotor systems of aircraft engines. In principal, the dampers decrease amplitude of the actuated oscillations, primarily when crossing the critical speed. They tend to shift the amplitude-frequency characteristic of the whole system to lower values due to the supplementary material of oil film, preventing thus the transmission of vibrations on to the machine frame and, in fact, reducing noisiness of the whole equipment.

Keywords in English

LSFD – long squeeze film damper, additional contribution

RIV year

2003

Released

01.03.2003

Location

Polsko, Gliwice

ISBN

83-917224-3-0

Book

Zeszyty naukowe katedry mechaniki stosowanej

Volume

3

Number

21

Edition number

1

Pages count

6

BIBTEX


@inproceedings{BUT7204,
  author="Pavel {Hlavoň} and Lubomír {Houfek},
  title="Using of the long squeeze film dampers in rotor systems",
  booktitle="Zeszyty naukowe katedry mechaniki stosowanej",
  year="2003",
  volume="3",
  number="21",
  month="March",
  address="Polsko, Gliwice",
  isbn="83-917224-3-0"
}