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Paolo Pennacchi
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Journal Articles

Tilting Pad Journal Bearing Computational Fluid Dynamic Parametric Modeling for New Energy Transition Challenges

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Edoardo Gheller, Vishnu Vardhan Reddy, Satish Koyyalamudi, Steven Chatterton, Daniele Panara, Paolo Pennacchi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2024, 146(4): 041019.
Paper No: GTP-23-1347
https://doi.org/10.1115/1.4063831
Published Online: December 26, 2023
View Articletitled, Tilting Pad Journal Bearing Computational Fluid Dynamic Parametric Modeling for New Energy Transition Challenges
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Topics: Bearings, Computational fluid dynamics, Equilibrium (Physics), Journal bearings, Modeling, Temperature, Turbulence, Pressure, Flow (Dynamics)
Journal Articles

Machine Learning-Based Optimizer for Tilting Pad Journal Bearing Inlet Flowrate

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Edoardo Gheller, Steven Chatterton, Daniele Panara, Gabriele Turini, Paolo Pennacchi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2023, 145(12): 121017.
Paper No: GTP-23-1323
https://doi.org/10.1115/1.4063532
Published Online: October 26, 2023
View Articletitled, Machine Learning-Based Optimizer for Tilting Pad Journal Bearing Inlet Flowrate
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Topics: Artificial neural networks, Bearings, Optimization, Temperature, Journal bearings, Stress, Probes
Journal Articles

Theoretical and Experimental Comparisons for Rotordynamic Coefficients of a Multiscratched Tilting Pad Journal Bearing

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Mohamed-Amine Hassini, Silun Zhang, Steven Chatterton, Paolo Pennacchi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2023, 145(2): 021008.
Paper No: GTP-22-1312
https://doi.org/10.1115/1.4055482
Published Online: November 28, 2022
View Articletitled, Theoretical and Experimental Comparisons for Rotordynamic Coefficients of a Multiscratched Tilting Pad Journal Bearing
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Topics: Bearings, Film thickness, Journal bearings, Pressure, Rotors, Stiffness, Stress, Temperature, Displacement, Damping
Journal Articles

Rotor Stability Effects of Tilting Pad Journal Bearings With Assembled Clearance Asymmetry

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Leonardo Urbiola-Soto, Paolo Pennacchi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2022, 144(8): 081009.
Paper No: GTP-22-1010
https://doi.org/10.1115/1.4054606
Published Online: June 20, 2022
View Articletitled, Rotor Stability Effects of Tilting Pad Journal Bearings With Assembled Clearance Asymmetry
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Topics: Bearings, Clearances (Engineering), Rotors, Stability, Stiffness, Shells, Journal bearings, American Petroleum Institute, Manufacturing
Journal Articles

An Unconventional Method for the Diagnosis and Study of Generator Rotor Thermal Bows

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Steven Chatterton, Paolo Pennacchi, Andrea Vania
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2022, 144(1): 011024.
Paper No: GTP-21-1407
https://doi.org/10.1115/1.4052079
Published Online: October 20, 2021
View Articletitled, An Unconventional Method for the Diagnosis and Study of Generator Rotor Thermal Bows
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Topics: Generators, Regression models, Rotors, Vibration
Journal Articles

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

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Filippo Cangioli, Giuseppe Vannini, Paolo Pennacchi, Lorenzo Ciuchicchi, Leonardo Nettis, Steven Chatterton
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011009.
Paper No: GTP-18-1293
https://doi.org/10.1115/1.4040688
Published Online: September 14, 2018
View Articletitled, Rotordynamic Characterization of a Staggered Labyrinth Seal: Experimental Test Data and Comparison With Predictions
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Topics: Cavities, Flow (Dynamics), Leakage, Pressure, Rotors, Damping, Fluids, Stiffness, Momentum, Clearances (Engineering)
Journal Articles

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

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Filippo Cangioli, Paolo Pennacchi, Giuseppe Vannini, Lorenzo Ciuchicchi, Andrea Vania, Steven Chatterton, Phuoc Vinh Dang
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2018, 140(3): 032502.
Paper No: GTP-17-1277
https://doi.org/10.1115/1.4037919
Published Online: October 17, 2017
View Articletitled, On the Thermodynamic Process in the Bulk-Flow Model for the Estimation of the Dynamic Coefficients of Labyrinth Seals
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Topics: Flow (Dynamics), Rotors, Enthalpy, Thermodynamic processes, Cavities
Journal Articles

Torsional Vibrations Caused by Geared Coupling in a Shaft Train Driven by a Steam Turbine

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Paolo Pennacchi, Andrea Vania, Franco Frattaroli
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2011, 133(1): 012501.
https://doi.org/10.1115/1.4001830
Published Online: September 27, 2010
View Articletitled, Torsional Vibrations Caused by Geared Coupling in a Shaft Train Driven by a Steam Turbine
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Topics: Gears, Machinery, Trains, Vibration, Bearings, Steam turbines
Journal Articles

Modeling and Model Updating of Torsional Behavior of an Industrial Steam Turbo Generator

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Roberto Ricci, Paolo Pennacchi, Emanuel Pesatori, Giorgio Turozzi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. July 2010, 132(7): 074501.
https://doi.org/10.1115/1.4000287
Published Online: April 16, 2010
View Articletitled, Modeling and Model Updating of Torsional Behavior of an Industrial Steam Turbo Generator
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Topics: Disks, Inertia (Mechanics), Machinery, Modeling, Rotors, Stiffness, Turbogenerators, Steam, Finite element analysis, Vibration