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RISDiscussion: “The Lomakin Effect in Annular Gas Seals Under Choked Flow Conditions” (Arghir, M., Defaye, C., and Frêne, F., 2007, ASME J. Eng. Gas Turbines Power, 129 , pp. 1028–1034)
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The authors’ predictions that choked flow in an annular gas seal is likely to produce negative direct stiffness was recently borne out in tests conducted by the discussers. A smooth seal was ...
Discussion: “Rotordynamic Force Prediction of Centrifugal Compressor Impellers Using Computational Fluid Mechanics” by J. J. Moore, D. L. Ransom, and F. Viana
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The authors are to be commended for an interesting demonstration of computational fluid dynamics (CFD) methods in the analysis of rotordynamic forces for impellers in centrifugal compressors. CFD ...
Static Performance Characteristics and Rotordynamic Coefficients for a Four-Pad Ball-in-Socket Tilting Pad Journal Bearing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Static performance characteristics and rotordynamic coefficients were experimentally determined for a four-pad, ball-in-socket, tilting-pad journal bearing in load-between-pad configuration. Measured ...
Closure to “Discussion of ‘A Test Apparatus and Facility to Identify the Rotordynamic Coefficients of High-Speed Hydrostatic Bearings’” (1994, ASME J. Tribol., 116, p. 343)
Publisher: The American Society of Mechanical Engineers (ASME)
A Test Apparatus and Facility to Identify the Rotordynamic Coefficients of High-Speed Hydrostatic Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A facility and apparatus are described which determine stiffness, damping, and added-mass rotordynamic coefficients plus steady-state operating characteristics of high speed hydrostatic journal ...
Angled Injection—Hydrostatic Bearings Analysis and Comparison to Test Results
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Hydrostatic/hydrodynamic (hybrid) journal bearings handling process liquids have limited dynamic stability characteristics and their application as support elements to high speed flexible rotating ...
Static and Dynamic Characteristics for a Pressure-Dam Bearing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Measured rotordynamic force coefficients (stiffness, damping, and added mass) and static characteristics (eccentricity and attitude angle) of a pressure-dam bearing are presented and compared to ...
Experimental Results for Labyrinth Gas Seals With Honeycomb Stators: Comparisons to Smooth-Stator Seals and Theoretical Predictions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental measurements are presented for the rotordynamic stiffness and damping coefficients of a teeth-on-rotor labyrinth seal with a honeycomb stator. Inlet circumferential velocity, inlet ...