Inertia and Couple-Stress Effects in a Curvilinear Thrust Hydrostatic Bearing

Author:

Walicka A.1,Jurczak P.1,Falicki J.1

Affiliation:

1. University of Zielona Góra , Faculty of Mechanical Engineering , ul. Szafrana 4, 65-516 Zielona Góra , Poland

Abstract

Abstract The flow of a couple-stress lubricant in a clearance of a curvilinear thrust hydrostatic bearing with impermeable walls is considered. The flow in the bearing clearance is considered with inertia forces. The equations of motion are solved by an averaged inertia method. As a result, the formulae for pressure distributions without and with inertia effects were obtained. Radial thrust bearings and spherical bearings are discussed as numerical examples. It is shown that inertia effects influence the bearing performance considerably.

Publisher

Walter de Gruyter GmbH

Subject

Fluid Flow and Transfer Processes,Transportation,Civil and Structural Engineering

Reference16 articles.

1. [1] Agrawal V.K. (1970): Effect of lubricant inertia on squeeze film in spherical bearing. – Jap. J. Appl. Phys., vol.9, No.7, pp.831-833.

2. [2] Gould F. (1975): High-pressure spherical squeeze films. – J. Lubric. Technol. Trans. ASME, ser. F, vol.97, No.1, pp.207-208.

3. [3] Murti P.R.K. (1975): Squeeze film in curved circular plates. – J. Lubric. Technol. Trans. AME, ser F, vol.97, No.4, pp.650-654.

4. [4] Vora K.H. (1980): Behaviour of squeeze film between curved circular plates with a concentric circular pocket. – Wear, vol.65, pp.35-38.

5. [5] Walicka A. (1989): Accurate and Asymptotic Solutions of Simplified Sets of Equations Describing the Motion of Viscous Fluids in a slot Bounded by Two Coaxial Surfaces of Revolution (in Polish). – Warszawa WNT.

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