Thrust porous bearing with rough surfaces lubricated by a rotem-shinnar fluid

• Autorzy: Walicka A. , Walicki E.

Identyfikatory

DOI

10.1515/ama-2016-0009

• Języki publikacji: EN

Abstrakty

EN

In the paper the influence of both bearing surfaces roughness and porosity of one bearing surface on the pressure distribution and load-carrying capacity of a thrust bearing surfaces is discussed. The equations of motion of a pseudo-plastic fluid of Rotem-Shinnar, are used to derive the Reynolds equation. After general considerations on the flow in a bearing clearance and in a porous layer using the Morgan-Cameron approximation and Christensen theory of hydrodynamic lubrication the modified Reynolds equation is obtained. The analytical solutions of this equation for the cases of squeeze film bearing and externally pressurized bearing are presented. As a result one obtains the formulae expressing pressure distribution and load-carrying capacity. Thrust radial bearing with squeezed film is considered as a numerical example.

Słowa kluczowe

EN

pseudo-plastic fluid; rotem-shinnar model; thrust bearing; porous layer; Christensen roughness

PL

płyn pseudoplastyczny; łożysko oporowe; warstwa porowata; teoria Christensena; model Rotem-Shinnar

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2016
• Tom: Vol. 10, no. 1
• Strony: 50--55
• Opis fizyczny: Bibliogr. 25 poz., rys., wykr.

Twórcy

autor

Walicka A.

• Faculty of Mechanical Engineering, ul. Szafrana 2, P.O.Box 47, University of Zielona Góra, 65-516 Zielona Góra, Poland

autor

Walicki E.

• Faculty of Mechanical Engineering, ul. Szafrana 2, P.O.Box 47, University of Zielona Góra, 65-516 Zielona Góra, Poland

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.