Czasopismo | POLISH TECHNICAL REVIEW | Rocznik 2024 - zeszyt 4

TILTING PAD JOURNAL BEARINGS

ŁOŻYSKA ŚLIZGOWE Z SEGMENTAMI WAHLIWYMI

10.15199/180.2024.4.5

Stanisław STRZELECKI

nr katalogowy: 152248
10.15199/180.2024.4.5

Streszczenie

W artykule przedstawiono łożyska ślizgowe z segmentami wahliwymi stosowanymi w maszynach wirnikowych wysokoobrotowych jak turbiny, turbosprężarki i przyśpieszające przekładnie turbinowe. Istotną cechą tych łożysk jest hydrodynamiczna stateczność w warunkach dużej liczby obrotów i odporność na zmiany kierunku obciążenia. Opisano konstrukcję, obliczenia charakterystyk statycznych i metody zasilania olejem. Opracowany algorytm numeryczny pozwala na wyznaczanie charakterystyk łożyska w wyniku rozwiązania równań Reynoldsa, energii, lepkości i geometrii filmu olejowego. Założono adiabatyczny film olejowy i statyczne położenie równowagi czopa.

Abstract

This article presents the tilting-pad journal bearings that are applied in high-speed machinery such as turbines, turbocompressors and accelerating turbine gearboxes. Important features of these bearings include hydrodynamic stability at high speeds and resistance to the variation in load direction. Design, computation of static characteristics and oil supply methods are described. Developed numerical algorithm allows obtaining bearing characteristics by means of the solution the Reynolds, energy, viscosity and geometry equations on the assumption of adiabatic oil film and at static equilibrium position of journal.

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Keywords

Bibliografia

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Open Access

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2024-4

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Open Access

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