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Proceedings Papers

Rotordynamic Design and Experimental Validation of a sCO2 Centrifugal Compressor Equipped With a Pocket Damper Seal

Giuseppe Vannini, Matteo Dozzini, Filippo Cangioli

Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT26A001, June 13–17, 2022

Paper No: GT2022-79563

DOI: https://doi.org/10.1115/GT2022-79563

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Topics: Compressors, Dampers, Design, Vibration, Density, Carbon dioxide, Engineering prototypes, Fluids, Pistons, Stability

Proceedings Papers

A Novel Hybrid Seal: Design and Experimental Validation on a High Pressure Rotordynamic Test Rig

Giuseppe Vannini, Benjamin Defoy, Manjush Ganiger, Carlo Mazzali

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A016, June 7–11, 2021

Paper No: GT2021-59371

DOI: https://doi.org/10.1115/GT2021-59371

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Topics: Design, High pressure (Physics), Honeycomb structures, Pistons, Pressure, Compressors, Computational fluid dynamics, Control equipment, Dampers, Engines

Proceedings Papers

Rotordynamic Evaluation of a Large High-Speed Rotor Equipped With Flexure Pivot Journal Bearings and Integral Squeeze Film Damper

Giuseppe Vannini, Alice Innocenti, Filippo Cangioli, Kim Jongsoo

Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT28A001, June 7–11, 2021

Paper No: GT2021-58800

DOI: https://doi.org/10.1115/GT2021-58800

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Topics: Bearings, Bending (Stress), Dampers, Journal bearings, Rotors

Journal Articles

Experiments on a Large Flexure Pivot Journal Bearing: Summary of Test Results and Comparison With Predictions

Giuseppe Vannini, Filippo Cangioli, Enrico Ciulli, Matteo Nuti, Paola Forte, Jongsoo Kim, Richard Livermore-Hardy

J. Eng. Gas Turbines Power. March 2020, 142(3): 031004.

Paper No: GTP-19-1320

DOI: https://doi.org/10.1115/1.4045520

Published Online: January 17, 2020

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Topics: Bearings, Bending (Stress), Design, Journal bearings, Stress, Temperature, Stiffness, Flow (Dynamics)

Journal Articles

A Novel Bulk-Flow Model for Pocket Damper Seals

Filippo Cangioli, Giuseppe Vannini, Thomas Chirathadam

J. Eng. Gas Turbines Power. January 2020, 142(1): 011012.

Paper No: GTP-19-1490

DOI: https://doi.org/10.1115/1.4045000

Published Online: November 28, 2019

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Topics: Dampers, Damping, Flow (Dynamics), Pressure, Rotors, Leakage, Momentum, Shear stress, Stiffness, Cavities

Proceedings Papers

Experiments on a Large Flexure Pivot Journal Bearing: Summary of Test Results and Comparison With Predictions

Giuseppe Vannini, Filippo Cangioli, Enrico Ciulli, Matteo Nuti, Paola Forte, Jongsoo Kim, Richard Livermore-Hardy

Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A009, June 17–21, 2019

Paper No: GT2019-90278

DOI: https://doi.org/10.1115/GT2019-90278

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Topics: Bending (Stress), Journal bearings, Stress, Compressors, Bearings, Boundary-value problems, Design, Flow (Dynamics), Hydraulic actuators, Instrumentation

Proceedings Papers

A Novel Bulk-Flow Model for Pocket Damper Seals

Filippo Cangioli, Giuseppe Vannini, Thomas Chirathadam

Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A002, June 17–21, 2019

Paper No: GT2019-90059

DOI: https://doi.org/10.1115/GT2019-90059

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Topics: Dampers, Flow (Dynamics), Rotors, Sealing (Process), Boundary layers, Compressors, Energy dissipation, Friction, High pressure (Physics), Leakage

Journal Articles

Stratified Two-Phase Flow in Annular Seals

Gioacchino Grimaldi, Giuseppe Pascazio, Giuseppe Vannini, Luciano Afferrante

J. Eng. Gas Turbines Power. July 2019, 141(7): 071006.

Paper No: GTP-18-1642

DOI: https://doi.org/10.1115/1.4042396

Published Online: January 16, 2019

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Topics: Flow (Dynamics), Leakage, Pressure, Rotors, Shear stress, Two-phase flow, Momentum, Stators, Turbulence

Journal Articles

Rotordynamic Characterization of a Staggered Labyrinth Seal: Experimental Test Data and Comparison With Predictions

Filippo Cangioli, Giuseppe Vannini, Paolo Pennacchi, Lorenzo Ciuchicchi, Leonardo Nettis, Steven Chatterton

J. Eng. Gas Turbines Power. January 2019, 141(1): 011009.

Paper No: GTP-18-1293

DOI: https://doi.org/10.1115/1.4040688

Published Online: September 14, 2018

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Topics: Cavities, Flow (Dynamics), Leakage, Pressure, Rotors, Damping, Fluids, Stiffness, Momentum, Clearances (Engineering)

Proceedings Papers

Analysis of Rotordynamic and Thermodynamic Performance of a Multistage Centrifugal Compressor Operating in the Minimum Flow Region

Marco Giachi, Giuseppe Vannini, Pier Luigi Di Pillo

Proc. ASME. GT2018, Volume 7A: Structures and Dynamics, V07AT33A026, June 11–15, 2018

Paper No: GT2018-76847

DOI: https://doi.org/10.1115/GT2018-76847

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Topics: Compressors, Flow (Dynamics), Machinery, Engineering design processes, Vibration

Proceedings Papers

Rotordynamic Characterization of Labyrinth Seals in Steam Turbines: Effects of Thermal and Mechanical Loads

Filippo Cangioli, Steven Chatterton, Paolo Pennacchi, Leonardo Nettis, Lorenzo Ciuchicchi, Andrea Vania, Giuseppe Vannini

Proc. ASME. GT2018, Volume 7B: Structures and Dynamics, V07BT34A001, June 11–15, 2018

Paper No: GT2018-75009

DOI: https://doi.org/10.1115/GT2018-75009

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Topics: Steam turbines, Stress, Flow (Dynamics), Machinery, Stability, Annulus, Centrifugal force, Clearances (Engineering), Geometry, Heat transfer

Proceedings Papers

Rotordynamic Characterization of a Staggered Labyrinth Seal: Experimental Test Data and Comparison With Predictions

Filippo Cangioli, Giuseppe Vannini, Paolo Pennacchi, Lorenzo Ciuchicchi, Leonardo Nettis, Steven Chatterton

Proc. ASME. GT2018, Volume 7B: Structures and Dynamics, V07BT34A003, June 11–15, 2018

Paper No: GT2018-75072

DOI: https://doi.org/10.1115/GT2018-75072

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Topics: Clearances (Engineering), Compressors, Dynamics (Mechanics), Flow (Dynamics), Fluids, Gas turbines, High pressure (Physics), Kinetic energy, Leakage, Pressure

Journal Articles

On the Thermodynamic Process in the Bulk-Flow Model for the Estimation of the Dynamic Coefficients of Labyrinth Seals

Filippo Cangioli, Paolo Pennacchi, Giuseppe Vannini, Lorenzo Ciuchicchi, Andrea Vania, Steven Chatterton, Phuoc Vinh Dang

J. Eng. Gas Turbines Power. March 2018, 140(3): 032502.

Paper No: GTP-17-1277

DOI: https://doi.org/10.1115/1.4037919

Published Online: October 17, 2017

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Topics: Flow (Dynamics), Rotors, Enthalpy, Thermodynamic processes, Cavities

Proceedings Papers

On the Thermodynamic Process in the Bulk-Flow Model for the Estimation of the Dynamic Coefficients of Labyrinth Seals

Filippo Cangioli, Paolo Pennacchi, Giuseppe Vannini, Lorenzo Ciuchicchi, Andrea Vania, Steven Chatterton, Phuoc Vinh Dang

Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT34A001, June 26–30, 2017

Paper No: GT2017-63012

DOI: https://doi.org/10.1115/GT2017-63012

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Topics: Flow (Dynamics), Thermodynamic processes, Enthalpy, Computational fluid dynamics, Leakage, Cavities, Clearances (Engineering), Fluids, Rotors, Shear stress

Proceedings Papers

Sensitivity Analysis of the One-Control Volume Bulk-Flow Model for a 14 Teeth-on-Stator Straight-Through Labyrinth Seal

Filippo Cangioli, Paolo Pennacchi, Giacomo Riboni, Giuseppe Vannini, Lorenzo Ciuchicchi, Andrea Vania, Steven Chatterton

Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT34A002, June 26–30, 2017

Paper No: GT2017-63014

DOI: https://doi.org/10.1115/GT2017-63014

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Topics: Flow (Dynamics), Sensitivity analysis, Stators, Leakage, Fluid dynamics, Friction, Cavities, Discharge coefficient, Dynamics (Mechanics), Fluids

Journal Articles

A Rotordynamic, Thermal, and Thrust Load Performance Gas Bearing Test Rig and Test Results for Tilting Pad Journal Bearings and Spiral Groove Thrust Bearings

Aaron M. Rimpel, Giuseppe Vannini, Jongsoo Kim

J. Eng. Gas Turbines Power. December 2017, 139(12): 122501.

Paper No: GTP-16-1259

DOI: https://doi.org/10.1115/1.4037315

Published Online: August 16, 2017

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Topics: Bearings, Stress, Thrust, Thrust bearings, Flow (Dynamics), Pressure, Gas bearings, Temperature, Journal bearings, Rotors

Journal Articles

Rotordynamic Computational and Experimental Characterization of a Convergent Honeycomb Seal Tested With Negative Preswirl, High Pressure With Static Eccentricity and Angular Misalignment

Giuseppe Vannini, Carlo Mazzali, Harald Underbakke

J. Eng. Gas Turbines Power. May 2017, 139(5): 052502.

Paper No: GTP-16-1248

DOI: https://doi.org/10.1115/1.4034965

Published Online: December 1, 2016

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Topics: Clearances (Engineering), Computational fluid dynamics, Damping, Design, Geometry, High pressure (Physics), Honeycomb structures, Pressure, Rotors, Stiffness

Proceedings Papers

Rotordynamic Computational and Experimental Characterization of a Convergent Honeycomb Seal Tested With Negative Pre-Swirl, High Pressure With Static Eccentricity and Angular Misalignment

Giuseppe Vannini, Carlo Mazzali, Harald Underbakke

Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A015, June 13–17, 2016

Paper No: GT2016-56615

DOI: https://doi.org/10.1115/GT2016-56615

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Topics: Experimental characterization, High pressure (Physics), Honeycomb structures, Rotors, Pressure, Stiffness, Damping, Stability, Clearances (Engineering), Brakes

Proceedings Papers

A Rotordynamic, Thermal, and Thrust Load Performance Gas Bearing Test Rig and Test Results for Tilting Pad Journal Bearings and Spiral Groove Thrust Bearings

Aaron M. Rimpel, Giuseppe Vannini, Jongsoo Kim

Proc. ASME. GT2016, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T23A027, June 13–17, 2016

Paper No: GT2016-57665

DOI: https://doi.org/10.1115/GT2016-57665

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Topics: Gas bearings, Journal bearings, Stress, Thrust, Thrust bearings, Bearings, Pressure, Temperature, Design, Temperature gradient

Journal Articles

Experimental Results and Computational Fluid Dynamics Simulations of Labyrinth and Pocket Damper Seals for Wet Gas Compression

Giuseppe Vannini, Matteo Bertoneri, Kenny Krogh Nielsen, Piero Iudiciani, Robert Stronach

J. Eng. Gas Turbines Power. May 2016, 138(5): 052501.

Paper No: GTP-15-1284

DOI: https://doi.org/10.1115/1.4031530

Published Online: October 27, 2015

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Topics: Compressors, Computational fluid dynamics, Flow (Dynamics), Simulation, Vibration, Compression, Pressure, Rotors, Dampers, Cavities

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Journal citation

NARROW

Rotordynamic Design and Experimental Validation of a sCO2 Centrifugal Compressor Equipped With a Pocket Damper Seal

A Novel Hybrid Seal: Design and Experimental Validation on a High Pressure Rotordynamic Test Rig

Rotordynamic Evaluation of a Large High-Speed Rotor Equipped With Flexure Pivot Journal Bearings and Integral Squeeze Film Damper

Experiments on a Large Flexure Pivot Journal Bearing: Summary of Test Results and Comparison With Predictions

A Novel Bulk-Flow Model for Pocket Damper Seals

Experiments on a Large Flexure Pivot Journal Bearing: Summary of Test Results and Comparison With Predictions

A Novel Bulk-Flow Model for Pocket Damper Seals

Stratified Two-Phase Flow in Annular Seals

Rotordynamic Characterization of a Staggered Labyrinth Seal: Experimental Test Data and Comparison With Predictions

Analysis of Rotordynamic and Thermodynamic Performance of a Multistage Centrifugal Compressor Operating in the Minimum Flow Region

Rotordynamic Characterization of Labyrinth Seals in Steam Turbines: Effects of Thermal and Mechanical Loads

Rotordynamic Characterization of a Staggered Labyrinth Seal: Experimental Test Data and Comparison With Predictions

On the Thermodynamic Process in the Bulk-Flow Model for the Estimation of the Dynamic Coefficients of Labyrinth Seals

On the Thermodynamic Process in the Bulk-Flow Model for the Estimation of the Dynamic Coefficients of Labyrinth Seals

Sensitivity Analysis of the One-Control Volume Bulk-Flow Model for a 14 Teeth-on-Stator Straight-Through Labyrinth Seal

A Rotordynamic, Thermal, and Thrust Load Performance Gas Bearing Test Rig and Test Results for Tilting Pad Journal Bearings and Spiral Groove Thrust Bearings

Rotordynamic Computational and Experimental Characterization of a Convergent Honeycomb Seal Tested With Negative Preswirl, High Pressure With Static Eccentricity and Angular Misalignment

Rotordynamic Computational and Experimental Characterization of a Convergent Honeycomb Seal Tested With Negative Pre-Swirl, High Pressure With Static Eccentricity and Angular Misalignment

A Rotordynamic, Thermal, and Thrust Load Performance Gas Bearing Test Rig and Test Results for Tilting Pad Journal Bearings and Spiral Groove Thrust Bearings

Experimental Results and Computational Fluid Dynamics Simulations of Labyrinth and Pocket Damper Seals for Wet Gas Compression

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