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Journal Articles

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

Mohamed-Amine Hassini, Silun Zhang, Steven Chatterton, Paolo Pennacchi

J. Eng. Gas Turbines Power. February 2023, 145(2): 021008.

Paper No: GTP-22-1312

DOI: https://doi.org/10.1115/1.4055482

Published Online: November 28, 2022

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Topics: Bearings, Film thickness, Journal bearings, Pressure, Rotors, Stiffness, Stress, Temperature, Displacement, Damping

Proceedings Papers

Theoretical and Experimental Comparisons for Rotordynamic Coefficients of a Multi-Scratched Tilting Pad Journal Bearing

Mohamed-Amine Hassini, Silun Zhang, Steven Chatterton, Paolo Pennacchi

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, V08AT22A022, June 13–17, 2022

Paper No: GT2022-83354

DOI: https://doi.org/10.1115/GT2022-83354

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Topics: Journal bearings

Journal Articles

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

Leonardo Urbiola-Soto, Paolo Pennacchi

J. Eng. Gas Turbines Power. August 2022, 144(8): 081009.

Paper No: GTP-22-1010

DOI: https://doi.org/10.1115/1.4054606

Published Online: June 20, 2022

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Topics: Bearings, Clearances (Engineering), Rotors, Stability, Stiffness, Shells, Journal bearings, American Petroleum Institute, Manufacturing

Proceedings Papers

Intelligent Defect Diagnosis of Spiral Bevel Gears Under Different Operating Conditions Using ANN and KNN Classifiers

Syed Muhammad Tayyab, Paolo Pennacchi, Steven Chatterton, Eram Asghar

Proc. ASME. IMECE2021, Volume 7A: Dynamics, Vibration, and Control, V07AT07A051, November 1–5, 2021

Paper No: IMECE2021-70016

DOI: https://doi.org/10.1115/IMECE2021-70016

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Topics: Artificial intelligence, Artificial neural networks, Flaw detection, Spiral bevel gears

Journal Articles

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

Steven Chatterton, Paolo Pennacchi, Andrea Vania

J. Eng. Gas Turbines Power. January 2022, 144(1): 011024.

Paper No: GTP-21-1407

DOI: https://doi.org/10.1115/1.4052079

Published Online: October 20, 2021

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Topics: Generators, Regression models, Rotors, Vibration

Proceedings Papers

Optimization of an Oil Film Journal Bearing for Temperature Reduction

Steven Chatterton, Paolo Pennacchi, Andrea Vania, Phuoc Vinh Dang

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A023, June 7–11, 2021

Paper No: GT2021-60159

DOI: https://doi.org/10.1115/GT2021-60159

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Topics: Computer simulation, Journal bearings, Optimization, Temperature

Proceedings Papers

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

Steven Chatterton, Paolo Pennacchi, Andrea Vania

Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT28A006, June 7–11, 2021

Paper No: GT2021-60036

DOI: https://doi.org/10.1115/GT2021-60036

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Topics: Generators, Machinery, Regression models, Rotors, Vibration

Proceedings Papers

LM9000 Free Power Turbine: Advanced Test Bench

Manfredi Mazzola, Andrea Bulleri, Paolo Pennacchi, Steven Chatterton

Proc. ASME. GT2020, Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine, V009T21A008, September 21–25, 2020

Paper No: GT2020-15213

DOI: https://doi.org/10.1115/GT2020-15213

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Topics: Design, Ocean engineering, Turbines, Weight (Mass), Dimensions, Generators, Aviation, Ball bearings, Engines, Gas turbines

Proceedings Papers

A Model-Based Prediction of Balancing Behavior of Rotors Above the Speed Range in Available Balancing Systems

Paolo Pennacchi, Riccardo Ferraro, Steven Chatterton, Damaso Checcacci

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT29A015, September 21–25, 2020

Paper No: GT2020-15136

DOI: https://doi.org/10.1115/GT2020-15136

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Topics: Modeling, Rotor balancing, Rotordynamics, Rotors

Proceedings Papers

On the Effects of a Shaft Crack Propagation on the Dynamic Behavior of a Steam Turbine

Steven Chatterton, Paolo Pennacchi, Andrea Vania

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT29A003, September 21–25, 2020

Paper No: GT2020-14207

DOI: https://doi.org/10.1115/GT2020-14207

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Topics: Crack propagation, Fracture (Materials), Machinery, Steam turbines, Vibration, Cross section (Physics), Condition monitoring, Fatigue cracks, Fault diagnosis, Probes

Proceedings Papers

Effect of Scratches on a Tilting-Pad Journal Bearing

Steven Chatterton, Paolo Pennacchi, Andrea Vania, Mohamed Amine Hassini, Antoine Kuczkowiak

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT29A006, September 21–25, 2020

Paper No: GT2020-14700

DOI: https://doi.org/10.1115/GT2020-14700

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Topics: Bearings, Journal bearings

Proceedings Papers

Modal Analysis of Turbine Blades by Means of Distributed Optical Fiber Sensors

Paolo Pennacchi, Gabriele Cazzulani, Alejandro Silva

Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A027, September 21–25, 2020

Paper No: GT2020-15390

DOI: https://doi.org/10.1115/GT2020-15390

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Topics: Carbon fibers, Fiber optic sensors, Modal analysis, Turbine blades

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

Unconventional Techniques for the Analysis of Experimental Spiral Vibrations

Andrea Vania, Paolo Pennacchi, Steven Chatterton, Filippo Cangioli

Proc. ASME. GT2018, Volume 7A: Structures and Dynamics, V07AT33A001, June 11–15, 2018

Paper No: GT2018-75005

DOI: https://doi.org/10.1115/GT2018-75005

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Topics: Vibration, Friction, Rotors, Damage, Machinery, Modeling, Stability, Stators, Steam turbines, Uncertainty

Proceedings Papers

Numerical Modeling of Thermally-Induced Vibration in Rotor Caused by Light-Rub Against Brush Seal

Filippo Cangioli, Paolo Pennacchi, Andrea Vania, Steven Chatterton

Proc. ASME. GT2018, Volume 7A: Structures and Dynamics, V07AT33A002, June 11–15, 2018

Paper No: GT2018-75042

DOI: https://doi.org/10.1115/GT2018-75042

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Topics: Computer simulation, Rotors, Vibration, Clearances (Engineering), Leakage, Turbomachinery, Design, Friction, Machinery, Dynamics (Mechanics)

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

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Journal citation

NARROW

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

Theoretical and Experimental Comparisons for Rotordynamic Coefficients of a Multi-Scratched Tilting Pad Journal Bearing

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

Intelligent Defect Diagnosis of Spiral Bevel Gears Under Different Operating Conditions Using ANN and KNN Classifiers

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

Optimization of an Oil Film Journal Bearing for Temperature Reduction

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

LM9000 Free Power Turbine: Advanced Test Bench

A Model-Based Prediction of Balancing Behavior of Rotors Above the Speed Range in Available Balancing Systems

On the Effects of a Shaft Crack Propagation on the Dynamic Behavior of a Steam Turbine

Effect of Scratches on a Tilting-Pad Journal Bearing

Modal Analysis of Turbine Blades by Means of Distributed Optical Fiber Sensors

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

Unconventional Techniques for the Analysis of Experimental Spiral Vibrations

Numerical Modeling of Thermally-Induced Vibration in Rotor Caused by Light-Rub Against Brush Seal

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

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