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RISA Computationally Efficient, Generalized Warner Bearing Formulation for Dynamically Loaded Elastohydrodynamic Journal Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. This article describes a computationally efficient variant of a mass-conserving, mode-based elastohydrodynamic lubrication (EHL) model suitable for conformal journal bearing systems under general transient load ...
A Hybrid Mobility Solution Approach for Dynamically Loaded Misaligned Journal Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a hybrid mobility solution approach to the analysis of dynamically loaded misaligned journal bearings. Mobility data obtained for misaligned bearings (calculated from a finite element representation of ...
Discussion: “Experimental Verification of Subcritical Whirl Bifurcation of a Rotor Supported on a Fluid Film Bearing” (Deepak J. C., Noah, S. T., 1998, ASME J. Tribol., 120, pp. 605–609)
Publisher: The American Society of Mechanical Engineers (ASME)
Transient Dynamics of the Conformal Elastohydrodynamic Squeeze Film Problem
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper provides the first crosscomparison of three established elastohydrodynamic computational methods to investigate the conformal longbearing pure squeeze cylindrical bearing problem with rigid journal and elastic ...
Mass Conserving Analysis of Steadily Loaded, Oscillating Partial Arc Journal Bearings Using a Generalized Warner Bearing Formulation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the first numerical study of self-acting grooveless, partial arc bearings under steady load and sinusoidal journal oscillation accounting for mass-conserving cavitation, with the objective of determining ...
Surface Roughness and Structural Inertia in a Mode-Based Mass-Conserving Elastohydrodynamic Lubrication Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Detailed formulations are presented for a mass-conserving, mode-based computational model which includes effects of structural inertia and surface roughness. Performance evaluation of a big end ...
A Novel Elastic Squeeze Film Total Hip Replacement
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes a new approach to the design of total hip replacements with the goal of enhancing lubrication and reducing wear. Elastic elements and ellipsoidal cup surface geometry are incorporated into the new ...
Oscillating Journal Bearings Under Steady Load: A Numerical Study of Limiting Cases
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This note provides a more extensive assessment of bearing performance for steadily loaded oscillating journal bearings using the mobility method of solution. Even with significantly large journal oscillation amplitudes, ...
Wear Characteristics of Conventional and Squeeze-Film Artificial Hip Joints
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper investigates the wear characteristics of a novel squeeze-film hip implant design. Key features of the design are elastic elements attached to the cup which provide a mechanical means for ball separation during ...
Warner–Sommerfeld Impedance and Mobility Maps
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This note provides additional graphical representations and curvefit expressions for characteristics of the Warner–Sommerfeld approximate solution of the Reynolds equation for cavitating journal finite bearings. In ...