The steady-state and dynamic characteristics of a full circular bearing and a centrally loaded, 100 deg, arc bearing are calculated for a range of eccentricity ratios to 0.95 and of mean Reynolds numbers to 13,300, and presented in design charts. These are compared with the measured performance of these bearings over the same ranges of the operating parameters. There is good correlation between the theoretical and test data, leading to the conclusion that the present turbulent lubrication analysis may be used to obtain general design data for self-acting bearings, operating in the superlaminar flow regime, to supplement that presently existing for laminar flow bearings.
This paper emphasizes the importance of temperature in thrust-bearing analysis. The analysis presented consists of simultaneous solution of the momentum, energy, and elasticity equations for centrally pivoted, sector-shaped, thrust-bearing pads. Elastic deformations due to the pressure distribution and thermal gradients are considered. Laminar and adiabatic conditions are assumed in the fluid film, and the lubricant is incompressible.
The technology of lubrication in the turbulent-flow regime has practical importance because of the recent and continuing developments of high-speed turbomachinery lubricated with low viscosity fluids such as water, steam, and liquid metals. Examples of such developments include compact, dynamic power-conversion turbomachinery for use in space, undersea, and in mobile, land-based power-plants, as well as large coolant-flow pumps and circulators for use in nuclear reactor installations.The technical meeting of November 1 and 2, 1966 was held to provide for an exchange of Information between the various groups active in research, development and application programs in this area. During the course of three technical sessions, seventeen presentations were made by representatives of U.S. Government Agencies and commercial contractors, on recent progress, current effort and anticipated future requirements in process-fluid lubrication and its applications to nuclear and aerospace turbomachinery. 3.1 BACKGROUND REVIEW '-'11
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