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Proceedings Papers

Test Results for the Static and Rotordynamic Characteristics of a Long (L/D = 0.75) Smooth Seal in Two-Phase (Mainly Gas) Conditions With a 62-Bar Inlet Pressure

Dung L. Tran, Dara W. Childs, Hari Shrestha, Min Zhang

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A001, September 21–25, 2020

Paper No: GT2020-14118

DOI: https://doi.org/10.1115/GT2020-14118

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Topics: Pressure, Stiffness, Damping, Flow (Dynamics), Gas turbines, Geometry, Leakage, Multiphase flow, Pistons, Pumps

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

DOI: https://doi.org/10.1115/GT2020-14153

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Topics: Dampers, Leakage, Damping, Clearances (Engineering), Computational fluid dynamics, Rotors, Blades, Flow (Dynamics), Turbomachinery, Design

Proceedings Papers

Effect of Partial Admission and Swirl Brakes on Destabilization Force of Labyrinth Gas Seal

Makoto Iwasaki, Rimpei Kawashita, Naoto Omura, Kazuyuki Matsumoto, Kenichi Murata, Ryokichi Hombo

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A003, September 21–25, 2020

Paper No: GT2020-14155

DOI: https://doi.org/10.1115/GT2020-14155

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Topics: Brakes

Proceedings Papers

Gas Labyrinth Seals: Improved Prediction of Leakage in Gas Labyrinth Seals Using an Updated Kinetic Energy Carry-Over Coefficient

Tingcheng Wu, Luis San Andrés

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A004, September 21–25, 2020

Paper No: GT2020-14167

DOI: https://doi.org/10.1115/GT2020-14167

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Topics: Kinetic energy, Leakage, Flow (Dynamics), Clearances (Engineering), Computational fluid dynamics, Pressure, Cavities, Geometry, Rotors, Stators

Proceedings Papers

Additively Manufactured Compliant Hybrid Gas Thrust Bearing for sCO 2 Turbomachinery: Experimental Evaluation and Fluid-Structure Model Predictions

Bugra Ertas, Keith Gary, Adolfo Delgado

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A018, September 21–25, 2020

Paper No: GT2020-14964

DOI: https://doi.org/10.1115/GT2020-14964

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Topics: Additive manufacturing, Fluids, Thrust bearings, Turbomachinery, Stress, Bearings, Pressure, Hydrostatics, Thrust, Deflection

Proceedings Papers

The Thermo-Hydrodynamic Analysis of the Plain Journal Bearing With Centered Circumferential Groove: Numerical Simulation vs. Experiment

Guanghui Zhang, Shubo Yu, Zhansheng Liu, Kefan Xu, Yu Li

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A011, September 21–25, 2020

Paper No: GT2020-14364

DOI: https://doi.org/10.1115/GT2020-14364

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Topics: Computer simulation, Journal bearings, Thermohydrodynamics, Bearings, Temperature, Clearances (Engineering), Temperature distribution, Design, Flow (Dynamics), Sensors

Proceedings Papers

On the Effect of the Gap of End Seals on Force Coefficients of a Test Integral Squeeze Film Damper: Experiments and Predictions

Luis San Andrés, Xueliang Lu, Bonjin Koo, Scott Tran

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A005, September 21–25, 2020

Paper No: GT2020-14182

DOI: https://doi.org/10.1115/GT2020-14182

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Topics: Dampers, Damping, Bearings, Lubricants, Rotors, Stiffness, Clearances (Engineering), Flow (Dynamics), Stress, Compressibility

Proceedings Papers

Experimental Investigation on the Rubbing Process of Labyrinth Seals Against Honeycomb Liners

Oliver Munz, Lisa Hühn, Corina Schwitzke, Hans-Jörg Bauer, Tim Fischer, Sonun Ulan kyzy

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A032, September 21–25, 2020

Paper No: GT2020-15935

DOI: https://doi.org/10.1115/GT2020-15935

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Topics: Honeycomb structures, Wear, Flow (Dynamics), Leakage, Optimization, Rotors, Sealing (Process), Service life (Equipment), Stators, Stress

Proceedings Papers

Experimental Investigations on the Pressure Fluctuations in the Sealing Gap of Dry Gas Seals With Embedded Pressure Sensors

Jingjing Luo, Dieter Brillert

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A012, September 21–25, 2020

Paper No: GT2020-14464

DOI: https://doi.org/10.1115/GT2020-14464

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Topics: Fluctuations (Physics), Pressure, Pressure sensors, Sealing (Process), Test facilities, Computer simulation, Pressure measurement, Compressors, Flow (Dynamics), Gas flow

Proceedings Papers

Numerical Investigation of Rotor and Journal Bearing Parameters on Nonlinear Vibration of a Highly Flexible Rotor Considering Journal Angular Motion With Experimental Verification

Nuntaphong Koondilogpiboon, Tsuyoshi Inoue

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A006, September 21–25, 2020

Paper No: GT2020-14254

DOI: https://doi.org/10.1115/GT2020-14254

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Topics: Journal bearings, Nonlinear vibration, Rotors, Bearings, Bifurcation, Disks, Limit cycles, Degrees of freedom, Finite element analysis, Rolling bearings

Proceedings Papers

A Computational Model for the Analysis of the Static Forced Performance of Self-Equalizing Tilting Pad Thrust Bearings

Rasool Koosha, Luis San Andrés

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A033, September 21–25, 2020

Paper No: GT2020-16060

DOI: https://doi.org/10.1115/GT2020-16060

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Topics: Computer simulation, Thrust bearings

Proceedings Papers

Novel Approach for Optical Characterization of Thrust Collar Lubricated Area: Experimental and Numerical Results

Thomas Kerr, Adolfo Delgado

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A025, September 21–25, 2020

Paper No: GT2020-15467

DOI: https://doi.org/10.1115/GT2020-15467

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Topics: Thrust, Cavitation, Stress, Turbulence, Computational fluid dynamics, Modeling, Pressure, Algorithms, Bearings, Compressors

Proceedings Papers

Identification of Dynamic Coefficients of a Five-Pad Tilting Pad Journal Bearing up to Highest Surface Speeds

Philipp Zemella, Thomas Hagemann, Bastian Pfau, Hubert Schwarze

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A019, September 21–25, 2020

Paper No: GT2020-14991

DOI: https://doi.org/10.1115/GT2020-14991

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Topics: Journal bearings, Bearings, Stress, Damping, Excitation, Flow (Dynamics), Stiffness, Rotors, Algorithms, Deflection

Proceedings Papers

Dynamic Identification of 280mm Diameter Tilting Pad Journal Bearings: Test Results and Measurement Uncertainties Assessment of Different Designs

Riccardo Ferraro, Alice Innocenti, Mirko Libraschi, Michele Barsanti, Enrico Ciulli, Paola Forte, Matteo Nuti

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A013, September 21–25, 2020

Paper No: GT2020-14718

DOI: https://doi.org/10.1115/GT2020-14718

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Topics: Journal bearings, Measurement uncertainty

Proceedings Papers

Effects of Clearance on the Performance of a Labyrinth Seal Under Wet-Gas Conditions

Min Zhang, Dara W. Childs, Dung L. Tran, Hari Shrestha

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A007, September 21–25, 2020

Paper No: GT2020-14267

DOI: https://doi.org/10.1115/GT2020-14267

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Topics: Clearances (Engineering), Leakage

Proceedings Papers

Load Influence on Hydrostatic Oil Film Journal Bearing Stiffness Characteristics

Leonid Moroz, Leonid Romanenko, Roman Kochurov, Evgen Kashtanov

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A020, September 21–25, 2020

Paper No: GT2020-15008

DOI: https://doi.org/10.1115/GT2020-15008

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Topics: Bearings, Damping, Hydrostatics, Journal bearings, Stiffness, Stress

Proceedings Papers

Experimental Study on the Performance of a See-Through Labyrinth Seal With Two-Phase, Mainly-Liquid Mixtures

Min Zhang, Dara W. Childs

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A008, September 21–25, 2020

Paper No: GT2020-14268

DOI: https://doi.org/10.1115/GT2020-14268

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Topics: Centrifugal pumps, Clearances (Engineering), Damping, Flow (Dynamics), Fluids, Friction, Gas industry, Leakage, Pistons, Pressure

Proceedings Papers

Rolling Bearing Parametric Excitation of a Jeffcott Rotor System

Ghasem Ghannad Tehrani, Chiara Gastaldi, Teresa Maria Berruti

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A034, September 21–25, 2020

Paper No: GT2020-16148

DOI: https://doi.org/10.1115/GT2020-16148

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Topics: Excitation, Rolling bearings, Rotors

Proceedings Papers

Matching Design of Active Magnetic Bearing and Elastic Support Vibration Isolator

Yichen Yao, Yixin Su, Tianye Yu, Gexue Ren, Suyuan Yu

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A014, September 21–25, 2020

Paper No: GT2020-14827

DOI: https://doi.org/10.1115/GT2020-14827

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Topics: Design, Machinery, Magnetic bearings, Vibration isolators

Proceedings Papers

Squeeze Film Damper Bearing With Double-Ended Beam Springs: Part II — Experimental Validation

Wei Li, Christopher Braman, Brian Hantz, Manish Thorat, Brian Pettinato

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A026, September 21–25, 2020

Paper No: GT2020-15491

DOI: https://doi.org/10.1115/GT2020-15491

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Topics: Bearings, Dampers, Fatigue testing, Modal analysis, Rotors, Springs

NARROW

Test Results for the Static and Rotordynamic Characteristics of a Long (L/D = 0.75) Smooth Seal in Two-Phase (Mainly Gas) Conditions With a 62-Bar Inlet Pressure

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

Effect of Partial Admission and Swirl Brakes on Destabilization Force of Labyrinth Gas Seal

Gas Labyrinth Seals: Improved Prediction of Leakage in Gas Labyrinth Seals Using an Updated Kinetic Energy Carry-Over Coefficient

Additively Manufactured Compliant Hybrid Gas Thrust Bearing for sCO 2 Turbomachinery: Experimental Evaluation and Fluid-Structure Model Predictions

The Thermo-Hydrodynamic Analysis of the Plain Journal Bearing With Centered Circumferential Groove: Numerical Simulation vs. Experiment

On the Effect of the Gap of End Seals on Force Coefficients of a Test Integral Squeeze Film Damper: Experiments and Predictions

Experimental Investigation on the Rubbing Process of Labyrinth Seals Against Honeycomb Liners

Experimental Investigations on the Pressure Fluctuations in the Sealing Gap of Dry Gas Seals With Embedded Pressure Sensors

Numerical Investigation of Rotor and Journal Bearing Parameters on Nonlinear Vibration of a Highly Flexible Rotor Considering Journal Angular Motion With Experimental Verification

A Computational Model for the Analysis of the Static Forced Performance of Self-Equalizing Tilting Pad Thrust Bearings

Novel Approach for Optical Characterization of Thrust Collar Lubricated Area: Experimental and Numerical Results

Identification of Dynamic Coefficients of a Five-Pad Tilting Pad Journal Bearing up to Highest Surface Speeds

Dynamic Identification of 280mm Diameter Tilting Pad Journal Bearings: Test Results and Measurement Uncertainties Assessment of Different Designs

Effects of Clearance on the Performance of a Labyrinth Seal Under Wet-Gas Conditions

Load Influence on Hydrostatic Oil Film Journal Bearing Stiffness Characteristics

Experimental Study on the Performance of a See-Through Labyrinth Seal With Two-Phase, Mainly-Liquid Mixtures

Rolling Bearing Parametric Excitation of a Jeffcott Rotor System

Matching Design of Active Magnetic Bearing and Elastic Support Vibration Isolator

Squeeze Film Damper Bearing With Double-Ended Beam Springs: Part II — Experimental Validation

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