Results 131 to 140 of about 19,606 (183)

Acoustical properties of hydrodynamic journal bearings

Tribology International, 2003
Abstract Results of theoretical investigations on acoustical properties of hydrodynamic journal bearings are presented. Nonlinear analysis including rotor imbalance is performed for a rotor-bearing system in order to obtain acoustical properties of the bearing.
Rho, BH, Kim, KW Kim, Kyung-Woong
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Analysis of hydrodynamic journal bearing with mixed hydrodynamic and boundary films

Australian Journal of Mechanical Engineering, 2020
When a hydrodynamic journal bearing works under an excessively heavy load, there occurs the very small bearing clearance where physical adsorbed layer boundary lubrication is present.
Fuhang Xie, Yongbin Zhang, Haijun Chen
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The Hydrodynamic Lubrication of Rough Journal Bearings

Journal of Lubrication Technology, 1973
In a number of previous papers a hydrodynamic theory of lubrication of rough bearing surfaces has been developed. The present paper describes the application of this theory to the analysis of the full journal bearing of finite width. The analysis demonstrates how the roughness influences the characteristics of the bearing and also shows how roughness ...
H. Christensen, K. Tonder
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Hydrodynamic Principles of Journal Bearing Design

Proceedings of the Institution of Mechanical Engineers, 1935
A survey of existing theories of the journal bearing without side leakage suggests that optimum conditions as regards friction and film thickness are obtained when the bearing is designed with such a clearance that the operating eccentricity, in the case of the half-bearing, is about 0·4.
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Stresses in Bearing Liner of Misaligned Hydrodynamically Lubricated Journal Bearings

ASME/STLE 2009 International Joint Tribology Conference, 2009
A numerical study examined the combined effects of journal misalignment and hydrodynamic lubrication on the stress fields of bearing liner under steady state conditions. The oil pressure, obtained by solving Reynolds equation, is imposed on a finite element model of an elastic liner bearing to calculate its stress fields. It was found that large degree
Abdallah A. Elsharkawy, Khaled J. Al-Fadhalah   +1 more
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The effects of journal lobing on the performance of a hydrodynamic plain journal bearing

Wear, 1977
Abstract Accurately ground journals nominally of 44.25 mm diameter and 63.5 mm wide were produced. One was cylindrical and the others had three, four, five, six, nine or twelve equispaced lobes, 0.025 mm high, on their peripheries. Each journal was fitted into a cylindrical lead-bronze bearing liner with a radial working clearance of 0.05 mm and ...
A. Radford, D. Fitzgeorge
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Analysis of Hybrid (Hydrodynamic/Hydrostatic) Journal Bearing

Advanced Materials Research, 2013
The Hybrid (hydrodynamic/ hydrostatic) journal bearing system has found wide spread application in high speed rotating machines such as compressors, gas turbines, steam turbines, etc. The present studies include solution of Reynolds equation for hydrodynamic journal bearing with infinitely long approximation (ILA), infinitely short bearing ...
Vijay Kumar Dwivedi, Satish Chand, K.N. Pandey   +2 more
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Wear of hydrodynamic journal bearings

2001
Journal bearings in automotive engines and other machinery are designed to operate in the hydrodynamic lubrication regime, with a film of lubricant separating the two surfaces. Despite this supposed absence of solid/solid contact during operation, however, many bearings suffer significant wear during their operating lives.
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Analysis of Hydrodynamic Journal Bearing with Axes Skew

Journal of Mechanical Engineering Science, 1973
A solution of Reynolds equation for journal bearing with axes skew has been proposed which is valid for any extent of positive film. Pressure distribution, Sommerfeld number, and friction coefficient parameter have been obtained for some arbitrarily chosen skew values.
D. V. Singh, R. Sinhasan, H. N. Singh
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Hydrodynamic Aspects of Fatigue in Plain Journal Bearings

Journal of Lubrication Technology, 1981
The fatigue resistance of different bearing materials is usually given an “order of merit” in terms of specific load on the bearing. The bearing material cannot directly sense the applied specific load, since it is the hydrodynamic oil film pressures which directly create the stresses in the lining; both pressures and stresses need to be examined to ...
F. A. Martin, D. R. Garner, D. R. Adams
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