ASME International
0022-2305
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Các bài báo tiêu biểu
Isothermal Elastohydrodynamic Lubrication of Point Contacts: Part III—Fully Flooded ResultsUtilizing the theory developed by the authors in an earlier publication, the influence of the ellipticity parameter, the dimensionless speed, load, and material parameters on minimum film thickness was investigated. The ellipticity parameter was varied from one (a ball on a plate configuration) to eight (a configuration approaching a line contact). The dimensionless speed parameter was var... ...
Tập 99 Số 2 - Trang 264-275 - 1977
Analysis of Gas-Lubricated Foil Journal BearingsThis work is concerned with an evaluation of the performance of a gas journal bearing using a spring supported compliant foil as the bearing surface. The analysis, conducted for both single and multipad configurations, is concerned with the effects that the various structural, geometric, and operational variables have on bearing behavior. Following the solution of the relevant differential... ...
Tập 105 Số 4 - Trang 647-655 - 1983
A Bulk-Flow Theory for Turbulence in Lubricant FilmsThe purpose of this study on the turbulent lubricant film is: 1 To give a brief outline of a new theory called bulk-flow theory; 2 To investigate to what extent results of theories based on law of wall and mixing length concept agree with the newly developed theory; 3 To provide a theoretical basis for the design of bearings lubricated by fluids of low kinematic viscosity.
Tập 95 Số 2 - Trang 137-145 - 1973
Calculation of Stiffness and Damping Properties of Gas BearingsThe dynamic characteristics of a gas bearing can be represented by a set of spring and damping coefficients (impedances) which are functions of the static load on the bearing, the rotating speed and the whirl frequency of the journal. For a rotor supported in gas bearings, these coefficients can be used directly in a critical speed calculation or an unbalance response calculation. In addit... ...
Tập 90 Số 4 - Trang 793-803 - 1968
The Role of Elastic Tangential Compliance in Oblique ImpactAn extension of the Hertz theory of impact to the oblique impact of elastic bodies with circular contact is outlined. The tangential compliance of the contact surface under the action of Coulomb friction is shown to have a significant effect on the rebound angles, if the local angle of incidence does not greatly exceed the angle of friction. Experiments are described in which the trajector... ...
Tập 103 Số 1 - Trang 74-80 - 1981
Dynamics of Rolling-Element Bearings—Part III: Ball Bearing AnalysisAn analytical formulation for the generalized ball, cage, and race motion in a ball bearing is presented in terms of the classical differential equations of motion. Ball-race interaction is analyzed in detail and the resulting force and moment vectors are determined. The ball-cage and race-cage interactions are considered to be either hydrodynamic or metallic and a critical film thickness ... ...
Tập 101 Số 3 - Trang 312-318 - 1979
Piston Ring Lubrication and Cylinder Bore Wear Analysis, Part I—TheoryAn analytical method developed for determining the bore wear pattern for a reciprocating piston engine over a complete running cycle is presented. The method includes the considerations of the hydrodynamic lubrication theory between the ring and the cylinder bore wall, piston ring geometric and elastic characteristics, blowby through the piston ring pack, minimum film thickness permitting ... ...
Tập 96 Số 3 - Trang 305-313 - 1974
An Analytical Method to Predict Skidding in Thrust-Loaded, Angular-Contact Ball Bearings
Tập 93 Số 1 - Trang 17-23 - 1971
Dynamics of Rolling-Element Bearings—Part IV: Ball Bearing ResultsDynamic simulations of the performance of a ball bearing are presented in terms of the general motion as obtained by integrating the differential equations of motion of the various bearing elements. It is shown that bearing misalignment significantly influences the ball/cage and race/cage interaction and, hence, the stability of cage motion. The increased radial to axial load ratios promot... ...
Tập 101 Số 3 - Trang 319-326 - 1979