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Journal Articles

Numerical Investigations on Static and Rotordynamic Characteristics for Two Types of Liquid Hole-Pattern Seals With Tilted Cavities

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Zhi Fang, Zhigang Li, Jun Li
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. October 2022, 144(5): 051008.
Paper No: VIB-21-1315
https://doi.org/10.1115/1.4054323
Published Online: May 10, 2022
View Articletitled, Numerical Investigations on Static and Rotordynamic Characteristics for Two Types of Liquid Hole-Pattern Seals With Tilted Cavities
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Topics: Cavities, Leakage, Rotors, Damping, Clearances (Engineering), Stiffness, Fluids, Whirls
Journal Articles

Numerical Modeling of Static and Rotordynamic Characteristics for Three Types of Helically Grooved Liquid Annular Seals

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Zhigang Li, Zhi Fang, Jun Li, Zhenping Feng
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. August 2020, 142(4): 041001.
Paper No: VIB-19-1391
https://doi.org/10.1115/1.4046380
Published Online: March 11, 2020
View Articletitled, Numerical Modeling of Static and Rotordynamic Characteristics for Three Types of Helically Grooved Liquid Annular Seals
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Topics: Computational fluid dynamics, Damping, Fluids, Leakage, Rotors, Stators, Stiffness, Transients (Dynamics), Whirls, Deformation
Journal Articles

Prediction of Rotordynamic Performance of Smooth Stator-Grooved Rotor Liquid Annular Seals Utilizing Computational Fluid Dynamics

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Farzam Mortazavi, Alan Palazzolo
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. June 2018, 140(3): 031002.
Paper No: VIB-17-1313
https://doi.org/10.1115/1.4038437
Published Online: December 12, 2017
View Articletitled, Prediction of Rotordynamic Performance of Smooth Stator-Grooved Rotor Liquid Annular Seals Utilizing Computational Fluid Dynamics
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Topics: Computational fluid dynamics, Damping, Flow (Dynamics), Leakage, Rotors, Stators, Stiffness, Whirls, Surface roughness, Pressure
Journal Articles

Dynamic Response Analysis of Balance Drum Labyrinth Seal Groove Geometries Optimized for Minimum Leakage

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Alexandrina Untaroiu, Neal Morgan, Vahe Hayrapetian, Bruno Schiavello
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. April 2017, 139(2): 021014.
Paper No: VIB-16-1242
https://doi.org/10.1115/1.4035380
Published Online: February 22, 2017
View Articletitled, Dynamic Response Analysis of Balance Drum Labyrinth Seal Groove Geometries Optimized for Minimum Leakage
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Topics: Damping, Design, Flow (Dynamics), Leakage, Regression models, Stiffness, Geometry, Stability, Computational fluid dynamics, Pumps
Journal Articles

Multiple Frequencies Elliptical Whirling Orbit Model and Transient RANS Solution Approach to Rotordynamic Coefficients of Annual Gas Seals Prediction

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Zhigang Li, Jun Li, Xin Yan
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. June 2013, 135(3): 031005.
Paper No: VIB-12-1041
https://doi.org/10.1115/1.4023143
Published Online: March 28, 2013
View Articletitled, Multiple Frequencies Elliptical Whirling Orbit Model and Transient RANS Solution Approach to Rotordynamic Coefficients of Annual Gas Seals Prediction
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Topics: Computer simulation, Damping, Excitation, Numerical analysis, Pressure, Reynolds-averaged Navier–Stokes equations, Rotors, Stiffness, Transients (Dynamics), Whirls
Journal Articles

Three-Dimensional CFD Rotordynamic Analysis of Gas Labyrinth Seals

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J. Jeffrey Moore
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. October 2003, 125(4): 427–433.
https://doi.org/10.1115/1.1615248
Published Online: October 8, 2003
View Articletitled, Three-Dimensional CFD Rotordynamic Analysis of Gas Labyrinth Seals
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Topics: Computational fluid dynamics, Flow (Dynamics), Pressure, Leakage
Journal Articles

The Effects of Converging and Diverging Axial Taper on the Rotordynamic Coefficients of Liquid Annular Pressure Seals: Theory Versus Experiment

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W. Todd Lindsey, Dara W. Childs, Jordan Professorship of Mechanical Engineering
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. April 2000, 122(2): 126–131.
https://doi.org/10.1115/1.568457
Published Online: November 1, 1995
View Articletitled, The Effects of Converging and Diverging Axial Taper on the Rotordynamic Coefficients of Liquid Annular Pressure Seals: Theory Versus Experiment
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Topics: Damping, Leakage, Pressure, Rotors, Stiffness, Whirls, Turbulence, Stators, Clearances (Engineering)
Journal Articles

Combined Piezoelectric-Hydraulic Actuator Based Active Vibration Control for Rotordynamic System

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P. Tang, A. Palazzolo, A. Kascak, G. Montague, W. Li
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. July 1995, 117(3A): 285–293.
https://doi.org/10.1115/1.2874449
Published Online: July 1, 1995
View Articletitled, Combined Piezoelectric-Hydraulic Actuator Based Active Vibration Control for Rotordynamic System
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Topics: Actuators, Vibration control, Bulk modulus, Piezoelectric actuators, Fluids, Leakage, Machinery, Pistons, Rotors, Vibration
Journal Articles

Influence of Impeller Shroud Forces on Turbopump Rotor Dynamics

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J. P. Williams, D. W. Childs
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. October 1991, 113(4): 508–515.
https://doi.org/10.1115/1.2930215
Published Online: October 1, 1991
View Articletitled, Influence of Impeller Shroud Forces on Turbopump Rotor Dynamics
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Topics: Impellers, Rotordynamics, Stability, Leakage, Rotors, Stiffness, Bearings, Damping, Dynamic systems, Fluids
Journal Articles

Centrifugal-Acceleration Modes for Incompressible Fluid in the Leakage Annulus Between a Shrouded Pump Impeller and Its Housing

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D. W. Childs
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. April 1991, 113(2): 209–218.
https://doi.org/10.1115/1.2930171
Published Online: April 1, 1991
View Articletitled, Centrifugal-Acceleration Modes for Incompressible Fluid in the Leakage Annulus Between a Shrouded Pump Impeller and Its Housing
Open the PDF for Centrifugal-Acceleration Modes for Incompressible Fluid in the Leakage Annulus Between a Shrouded Pump Impeller and Its Housing in another window
Topics: Annulus, Incompressible fluids, Leakage, Pump impellers, Impellers, Eigenvalues, Excitation, Flow (Dynamics), Mode shapes, Momentum
Journal Articles

Rotordynamic Coefficients for Partially Roughened Pump Annular Seals

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J. K. Scharrer, C. C. Nelson
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. April 1991, 113(2): 240–244.
https://doi.org/10.1115/1.2930176
Published Online: April 1, 1991
View Articletitled, Rotordynamic Coefficients for Partially Roughened Pump Annular Seals
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Topics: Boundary-value problems, Differential equations, Flow (Dynamics), Leakage, Lubrication, Momentum, Perturbation theory, Pressure, Pumps, Separation (Technology)
Journal Articles

Fluid-Structure Interaction Forces at Pump-Impeller-Shroud Surfaces for Axial Vibration Analysis

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D. W. Childs
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. January 1991, 113(1): 108–115.
https://doi.org/10.1115/1.2930144
Published Online: January 1, 1991
View Articletitled, Fluid-Structure Interaction Forces at Pump-Impeller-Shroud Surfaces for Axial Vibration Analysis
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Topics: Fluid structure interaction, Impellers, Pumps, Vibration analysis, Momentum, Pressure, Annulus, Damping, Fluids, Leakage
Journal Articles

A Method for Calculating Labyrinth Seal Inlet Swirl Velocity

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R. Gordon Kirk
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. July 1990, 112(3): 380–383.
https://doi.org/10.1115/1.2930519
Published Online: July 1, 1990
View Articletitled, A Method for Calculating Labyrinth Seal Inlet Swirl Velocity
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Topics: Axial flow, Compressors, Disks, Flow (Dynamics), Friction, Geometry, Impellers, Leakage, Packing (Shipments), Packings (Cushioning)
Journal Articles

Improve the Stability of Rotor Subjected to Fluid Leakage by Optimum Diameters Design

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J. H. Wang, F. M. Shih
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. January 1990, 112(1): 59–64.
https://doi.org/10.1115/1.2930099
Published Online: January 1, 1990
View Articletitled, Improve the Stability of Rotor Subjected to Fluid Leakage by Optimum Diameters Design
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Topics: Design, Fluids, Leakage, Rotors, Stability, Bearings, Blades, Excitation, Optimization, Turbomachinery
Journal Articles

Fluid-Structure Interaction Forces at Pump-Impeller-Shroud Surfaces for Rotordynamic Calculations

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D. W. Childs
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. July 1989, 111(3): 216–225.
https://doi.org/10.1115/1.3269845
Published Online: July 1, 1989
View Articletitled, Fluid-Structure Interaction Forces at Pump-Impeller-Shroud Surfaces for Rotordynamic Calculations
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Topics: Fluid structure interaction, Impellers, Pumps, Annulus, Momentum, Pressure, Fluids, Leakage, Clearances (Engineering), Damping
Journal Articles

Instability Due to Fluid Leakage of a Rotor System With Anisotropic Support

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J. H. Wang, M. T. Tsai
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. January 1989, 111(1): 27–34.
https://doi.org/10.1115/1.3269819
Published Online: January 1, 1989
View Articletitled, Instability Due to Fluid Leakage of a Rotor System With Anisotropic Support
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Topics: Anisotropy, Fluids, Leakage, Rotors, Bearings, Stability, Finite element model, Stiffness, Turbogenerators, Turbomachinery
Journal Articles

Theory Versus Experiment for the Rotordynamic Coefficients of Labyrinth Gas Seals: Part I—A Two Control Volume Model

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Joseph K. Scharrer
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. July 1988, 110(3): 270–280.
https://doi.org/10.1115/1.3269513
Published Online: July 1, 1988
View Articletitled, Theory Versus Experiment for the Rotordynamic Coefficients of Labyrinth Gas Seals: Part I—A Two Control Volume Model
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Topics: Cavities, Compressible flow, Flow (Dynamics), Friction, Jets, Leakage, Momentum, Perturbation theory, Pressure, Separation (Technology)
Journal Articles

Theory Versus Experiment for the Rotordynamic Coefficient of Labyrinth Gas Seals: Part II—A Comparison to Experiment

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D. W. Childs, J. K. Scharrer
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. July 1988, 110(3): 281–287.
https://doi.org/10.1115/1.3269514
Published Online: July 1, 1988
View Articletitled, Theory Versus Experiment for the Rotordynamic Coefficient of Labyrinth Gas Seals: Part II—A Comparison to Experiment
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Topics: Clearances (Engineering), Damping, Leakage, Rotors, Stators, Stiffness, Test facilities
Journal Articles

Numerical and Analytical Study of Fluid Dynamic Forces in Seals and Bearings

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L. T. Tam, A. J. Przekwas, A. Muszynska, R. C. Hendricks, M. J. Braun, R. L. Mullen
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. July 1988, 110(3): 315–325.
https://doi.org/10.1115/1.3269519
Published Online: July 1, 1988
View Articletitled, Numerical and Analytical Study of Fluid Dynamic Forces in Seals and Bearings
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Topics: Bearings, Fluid-dynamic forces, Flow (Dynamics), Fluids, Rotors, Navier-Stokes equations, Rotation, Axial flow, Computer simulation, Leakage
Journal Articles

Experimental Study on the Static and Dynamic Characteristics of Screw Grooved Seals

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H. Kanki, T. Kawakami
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. July 1988, 110(3): 326–331.
https://doi.org/10.1115/1.3269520
Published Online: July 1, 1988
View Articletitled, Experimental Study on the Static and Dynamic Characteristics of Screw Grooved Seals
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Topics: Screws, Pumps, Boilers, Leakage, Stress, Test facilities