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Proceedings Papers

A Radio Frequency Polarimetry Sensor for Monitoring Rotor Shaft Position

Yuko Inoue, Luis E. Perez, Thomas G. Pratt, Scott C. Morris
Publisher: American Society of Mechanical Engineers
Proc. ASME. GT2023, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A013, June 26–30, 2023
Paper No: GT2023-102059
https://doi.org/10.1115/GT2023-102059
View Paper titled, A Radio Frequency Polarimetry Sensor for Monitoring Rotor Shaft Position
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Topics: Artificial neural networks, Polarimetry, Rotors, Sensors, Whirls
Proceedings Papers

Leakage and Rotordynamic Force Coefficients of a Labyrinth Seal and a Pocket Damper Seal Operating With Wet Gas

Jose Torres, Luis San Andrés
Publisher: American Society of Mechanical Engineers
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A002, June 26–30, 2023
Paper No: GT2023-100555
https://doi.org/10.1115/GT2023-100555
View Paper titled, Leakage and Rotordynamic Force Coefficients of a Labyrinth Seal and a Pocket Damper Seal Operating With Wet Gas
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Topics: Dampers, Leakage, Clearances (Engineering), Damping, Uncertainty, Cavities, Compressors, Design, Engineers, Errors
Proceedings Papers

A Full Three-Dimensional Transient Fluid-Structure Interaction Model for the Dynamic Characteristics Predictions of Bump-Type Gas Foil Journal Bearings

Zhuocong Li, Zhigang Li, Jun Li
Publisher: American Society of Mechanical Engineers
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A019, June 26–30, 2023
Paper No: GT2023-102802
https://doi.org/10.1115/GT2023-102802
View Paper titled, A Full Three-Dimensional Transient Fluid-Structure Interaction Model for the Dynamic Characteristics Predictions of Bump-Type Gas Foil Journal Bearings
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Topics: Fluid structure interaction, Journal bearings, Rotors, Transients (Dynamics), Whirls
Proceedings Papers

A Comparison of Static and Rotordynamic Characteristics for Three Types of Impeller Front Seals in a Liquid Oxygen Turbopump

Zhihong Jin, Zhigang Li, Jun Li
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT22A016, June 13–17, 2022
Paper No: GT2022-82556
https://doi.org/10.1115/GT2022-82556
View Paper titled, A Comparison of Static and Rotordynamic Characteristics for Three Types of Impeller Front Seals in a Liquid Oxygen Turbopump
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Topics: Impellers, Oxygen, Leakage, Rotors, Computational fluid dynamics, Dampers, Fluids, Stability, Stators, Stress
Proceedings Papers

Measured Leakage and Rotordynamic Force Coefficients for Two Liquid Annular Seal Configurations: Smooth-Rotor/Grooved-Stator Versus Grooved-Rotor/Smooth-Stator

Dara W. Childs, Jing Yang, Luis San Andrés, Jose M. Torres Rueda, J. Alex Moreland
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT22A004, June 13–17, 2022
Paper No: GT2022-80073
https://doi.org/10.1115/GT2022-80073
View Paper titled, Measured Leakage and Rotordynamic Force Coefficients for Two Liquid Annular Seal Configurations: Smooth-Rotor/Grooved-Stator Versus Grooved-Rotor/Smooth-Stator
Open the PDF for Measured Leakage and Rotordynamic Force Coefficients for Two Liquid Annular Seal Configurations: Smooth-Rotor/Grooved-Stator Versus Grooved-Rotor/Smooth-Stator in another window
Topics: Leakage, Rotors, Stators, Damping, Geometry, Pressure, Pumps, Stability, Brakes, Clearances (Engineering)
Proceedings Papers

Mixed Whirl Modes in Numerical Rotordynamics Analysis

Konrad Juethner, Ted Rose, J. S. Kumar, Jianming Cao, Gregory M. Savela, Chris J. Zuck, Parag H. Mathuria
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT26A004, June 13–17, 2022
Paper No: GT2022-79755
https://doi.org/10.1115/GT2022-79755
View Paper titled, Mixed Whirl Modes in Numerical Rotordynamics Analysis
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Topics: Rotordynamics, Whirls, Rotors, Design, Eigenvalues, Stability, Algorithms, Economics , Fatigue, Finite element analysis
Proceedings Papers

Semi-Analytical Model for High-Speed Rotor Whirl Prediction: An Assumed Modes Formulation for an Axisymmetric Rotor With Non-Uniform Properties

Riju Chatterjee, Ashutosh Patel, Nirmal Kumar, Pramod Kumar
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT26A012, June 13–17, 2022
Paper No: GT2022-82632
https://doi.org/10.1115/GT2022-82632
View Paper titled, Semi-Analytical Model for High-Speed Rotor Whirl Prediction: An Assumed Modes Formulation for an Axisymmetric Rotor With Non-Uniform Properties
Open the PDF for Semi-Analytical Model for High-Speed Rotor Whirl Prediction: An Assumed Modes Formulation for an Axisymmetric Rotor With Non-Uniform Properties in another window
Topics: Rotors, Whirls
Proceedings Papers

Static and Rotordynamic Characteristics for Two Novel Hole-Pattern Annular Liquid Seals With Circumferentially- /Axially- Oblique Hole Cavities

Zhi Fang, Zhigang Li, Jun Li, Zhenping Feng
Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A013, June 7–11, 2021
Paper No: GT2021-58996
https://doi.org/10.1115/GT2021-58996
View Paper titled, Static and Rotordynamic Characteristics for Two Novel Hole-Pattern Annular Liquid Seals With Circumferentially- /Axially- Oblique Hole Cavities
Open the PDF for Static and Rotordynamic Characteristics for Two Novel Hole-Pattern Annular Liquid Seals With Circumferentially- /Axially- Oblique Hole Cavities in another window
Topics: Cavities, Leakage, Design, Abrasion, Manufacturing, Rotors, Transients (Dynamics), Bearings, Centrifugal pumps, Clearances (Engineering)
Proceedings Papers

Rotordynamic Characteristics of the Straight-Through Labyrinth Seal Based On the Applicability Analysis of Leakage Models Using Bulk-Flow Method

Tianhao Wang, Zhigang Li, Jun Li
Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT15A015, June 7–11, 2021
Paper No: GT2021-59568
https://doi.org/10.1115/GT2021-59568
View Paper titled, Rotordynamic Characteristics of the Straight-Through Labyrinth Seal Based On the Applicability Analysis of Leakage Models Using Bulk-Flow Method
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Topics: Flow (Dynamics), Leakage, Pressure, Clearances (Engineering), Sealing (Process), Damping, Excitation, Fluids, Leakage flows, Rotors
Proceedings Papers

On the Leakage and Dynamic Force Coefficients of a Novel Stepped Shaft Pocket Damper Seal: Experimental and Numerical Verification

Jing Yang, Luis San Andrés, Xueliang Lu
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A002, September 21–25, 2020
Paper No: GT2020-14153
https://doi.org/10.1115/GT2020-14153
View Paper titled, On the Leakage and Dynamic Force Coefficients of a Novel Stepped Shaft Pocket Damper Seal: Experimental and Numerical Verification
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Topics: Dampers, Leakage, Damping, Clearances (Engineering), Computational fluid dynamics, Rotors, Blades, Flow (Dynamics), Turbomachinery, Design
Proceedings Papers

Rotordynamic Performance of the Interlocking Labyrinth Seal With a Tilting Rotor

Wanfu Zhang, Yingfei Wang, Qianlei Gu, Lu Yin, Jian-gang Yang
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A009, September 21–25, 2020
Paper No: GT2020-14314
https://doi.org/10.1115/GT2020-14314
View Paper titled, Rotordynamic Performance of the Interlocking Labyrinth Seal With a Tilting Rotor
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Topics: Rotors, Cavities, Stability, Flow (Dynamics), Clearances (Engineering), Damping, Deformation, Leakage flows, Numerical analysis, Pressure
Proceedings Papers

Numerical Investigation on the Static and Rotordynamic Characteristics for Two Types of Novel Mixed Helical Groove Seals

Zhi Fang, Zhigang Li, Jun Li, Zhenping Feng
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A036, September 21–25, 2020
Paper No: GT2020-16303
https://doi.org/10.1115/GT2020-16303
View Paper titled, Numerical Investigation on the Static and Rotordynamic Characteristics for Two Types of Novel Mixed Helical Groove Seals
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Topics: Bearings, Cavities, Computational fluid dynamics, Dampers, Damping, Deformation, Drag (Fluid dynamics), Energy dissipation, Fluids, High pressure (Physics)
Proceedings Papers

A Novel Controlled-Motion Test Rig to Evaluate Effect of Synchronous and Subsynchronous Lateral Vibration on Reliability and Performance of Mechanical Seals in Pumps

Clay S. Norrbin, Adolfo Delgado
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A029, September 21–25, 2020
Paper No: GT2020-15749
https://doi.org/10.1115/GT2020-15749
View Paper titled, A Novel Controlled-Motion Test Rig to Evaluate Effect of Synchronous and Subsynchronous Lateral Vibration on Reliability and Performance of Mechanical Seals in Pumps
Open the PDF for A Novel Controlled-Motion Test Rig to Evaluate Effect of Synchronous and Subsynchronous Lateral Vibration on Reliability and Performance of Mechanical Seals in Pumps in another window
Topics: Pumps, Reliability, Vibration, Rotors, Whirls, Flow (Dynamics), Leakage, Mineral oil, Temperature, Clearances (Engineering)
Proceedings Papers

Investigation of Rotordynamic Coefficients of Gas Labyrinth Seals Using a Steady State CFD Approach

Casey Palanca, Abraham Engeda, Mike Cave
Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT29A007, September 21–25, 2020
Paper No: GT2020-14822
https://doi.org/10.1115/GT2020-14822
View Paper titled, Investigation of Rotordynamic Coefficients of Gas Labyrinth Seals Using a Steady State CFD Approach
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Topics: Computational fluid dynamics, Steady state, Rotors, Cavities, Clearances (Engineering), Compressors, Damping, Design, Flow (Dynamics), Gas compressors
Proceedings Papers

A Method for Rotordynamic Force Prediction of a Centrifugal Compressor Impeller Front Cavity Using a Transient Whirling CFD Technique

Kevin Hoopes, J. Jeffrey Moore, Aaron Rimpel, Chris Kulhanek, Balaji Venkataraman
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT33A011, June 17–21, 2019
Paper No: GT2019-91904
https://doi.org/10.1115/GT2019-91904
View Paper titled, A Method for Rotordynamic Force Prediction of a Centrifugal Compressor Impeller Front Cavity Using a Transient Whirling CFD Technique
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Topics: Cavities, Compressor impellers, Computational fluid dynamics, Transients (Dynamics), Whirls, Impellers, Modeling, Simulation, Stability
Proceedings Papers

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

Zhigang Li, Zhi Fang, Jun Li, Zhenping Feng
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A020, June 17–21, 2019
Paper No: GT2019-90779
https://doi.org/10.1115/GT2019-90779
View Paper titled, Numerical Modeling of Static and Rotordynamic Characteristics for Three Types of Helically-Grooved Liquid Annular Seals
Open the PDF for Numerical Modeling of Static and Rotordynamic Characteristics for Three Types of Helically-Grooved Liquid Annular Seals in another window
Topics: Computer simulation, Leakage flows, Stators, Centrifugal pumps, Computational fluid dynamics, Drag (Fluid dynamics), Rotors, Damping, Fluids, Stiffness
Proceedings Papers

Rotordynamic Stability Evaluation With Constructed Forward Whirl Signals Based on Full Spectrum Technique: Numerical and Experimental Investigation

Qihang Li, Fulei Chu
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT33A006, June 17–21, 2019
Paper No: GT2019-90417
https://doi.org/10.1115/GT2019-90417
View Paper titled, Rotordynamic Stability Evaluation With Constructed Forward Whirl Signals Based on Full Spectrum Technique: Numerical and Experimental Investigation
Open the PDF for Rotordynamic Stability Evaluation With Constructed Forward Whirl Signals Based on Full Spectrum Technique: Numerical and Experimental Investigation in another window
Topics: Signals, Stability, Whirls, Excitation, Carbon capture and storage, Rotors, Signal processing, Actuators, Bearings, Compressors
Proceedings Papers

Numerical Comparison of Static and Rotordynamic Characteristics for a Grooved-Stator/Smooth-Rotor and a Smooth-Stator/Grooved-Rotor Liquid Annular Seals

Zhigang Li, Zhi Fang, Jun Li, Zhenping Feng
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A021, June 17–21, 2019
Paper No: GT2019-90781
https://doi.org/10.1115/GT2019-90781
View Paper titled, Numerical Comparison of Static and Rotordynamic Characteristics for a Grooved-Stator/Smooth-Rotor and a Smooth-Stator/Grooved-Rotor Liquid Annular Seals
Open the PDF for Numerical Comparison of Static and Rotordynamic Characteristics for a Grooved-Stator/Smooth-Rotor and a Smooth-Stator/Grooved-Rotor Liquid Annular Seals in another window
Topics: Rotors, Stators, Whirls, Computational fluid dynamics, Drag (Fluid dynamics), Leakage, Leakage flows, Pressure drop, Sealing (Process), Transients (Dynamics)
Proceedings Papers

Pump Grooved Seals: A CFD Approach to Improve Bulk-Flow Model Predictions

Tingcheng Wu, Luis San Andrés
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A015, June 17–21, 2019
Paper No: GT2019-90499
https://doi.org/10.1115/GT2019-90499
View Paper titled, Pump Grooved Seals: A CFD Approach to Improve Bulk-Flow Model Predictions
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Topics: Computational fluid dynamics, Flow (Dynamics), Pumps, Leakage, Rotors, Shapes, Clearances (Engineering), Damping, Pressure, Stators
Proceedings Papers

Model and Experimental Verification of the Dynamic Forced Performance of a Tightly Sealed Squeeze Film Damper Supplied With a Bubbly Mixture

Luis San Andrés, Bonjin Koo
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A010, June 17–21, 2019
Paper No: GT2019-90330
https://doi.org/10.1115/GT2019-90330
View Paper titled, Model and Experimental Verification of the Dynamic Forced Performance of a Tightly Sealed Squeeze Film Damper Supplied With a Bubbly Mixture
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Topics: Dampers, Pressure, Lubricants, Damping, Cycles, Flow (Dynamics), Inertia (Mechanics), Piston rings, Stiffness, Whirls