Running characteristics of aerodynamic bearing with self-lifting capability at low rotational speed - Publikacja - MOST Wiedzy

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Running characteristics of aerodynamic bearing with self-lifting capability at low rotational speed

Abstrakt

An aerodynamic journal bearing that is capable of self-generating squeeze-film pressure is presented and its dynamic characteristics investigated numerically and experimentally. A numerical method based on a time marching static model was applied to assess the orbit trajectory path of the rotor upon a perturbation. Experimental results were obtained to validate the effect of the self- generated squeeze-film pressure on the stability of the rotor. Analyzing the Fast Fourier Transform (FFT) responses of the rotor orbits enabled identification of self-excited whirling instabilities. Both numerical and experimental results showed that increasing the squeeze-film effect of the bearing could raise the threshold speed of instability.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie indeksowanym TR Master Journal List
Opublikowano w:
Advances in Tribology nr 2011, strony 1 - 10,
ISSN: 1687-5915
Język:
angielski
Rok wydania:
2011
Opis bibliograficzny:
Stolarski T.: Running characteristics of aerodynamic bearing with self-lifting capability at low rotational speed// Advances in Tribology. -Vol. 2011., (2011), s.1-10
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1155/2011/973740
Weryfikacja:
Politechnika Gdańska

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