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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

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

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

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

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

Proceedings Papers

Behavior of Tilting–Pad Journal Bearings With Large Machining Error on Pads

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

Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A018, June 13–17, 2016

Paper No: GT2016-56674

DOI: https://doi.org/10.1115/GT2016-56674

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Topics: Errors, Journal bearings, Machining, Bearings, Stress, Geometry, Dimensions, Clearances (Engineering), Damping, Flow (Dynamics)

Proceedings Papers

Development of an Active Control System for Rotating Machinery by Means of Tilting Pad Journal Bearings

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

Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A016, June 13–17, 2016

Paper No: GT2016-56632

DOI: https://doi.org/10.1115/GT2016-56632

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Topics: Control systems, Journal bearings, Machinery, Vibration, Bearings, Compressors, Control equipment, Design, Engineering simulation, Numerical analysis

Proceedings Papers

Analysis of the Dynamic Behavior of Two High-Pressure Turbines for the Possible Detection of Rub Symptoms

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

Proc. ASME. GT2016, Volume 7A: Structures and Dynamics, V07AT30A004, June 13–17, 2016

Paper No: GT2016-56627

DOI: https://doi.org/10.1115/GT2016-56627

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Topics: High pressure (Physics), Turbines, Machinery, Rotors, Vibration, Cascades (Fluid dynamics), Rotordynamics, Steady state, Steam turbines, Transients (Dynamics)

Proceedings Papers

Behavior of a Tilting–Pad Journal Bearing With Different Load Directions

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

Proc. ASME. IDETC-CIE2015, Volume 8: 27th Conference on Mechanical Vibration and Noise, V008T13A067, August 2–5, 2015

Paper No: DETC2015-46598

DOI: https://doi.org/10.1115/DETC2015-46598

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Topics: Journal bearings, Stress, Bearings, Clearances (Engineering), Geometry, Flow (Dynamics), Lubricants, Machine components, Machinery, Rotors

Proceedings Papers

An Experimental Study of Nonlinear Oil-Film Forces in a Tilting-Pad Journal Bearing

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

Proc. ASME. IDETC-CIE2015, Volume 8: 27th Conference on Mechanical Vibration and Noise, V008T13A068, August 2–5, 2015

Paper No: DETC2015-46601

DOI: https://doi.org/10.1115/DETC2015-46601

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Topics: Journal bearings, Bearings, Machinery, Stress, Damping, Equilibrium (Physics), Stability, Stiffness, Theoretical analysis

Proceedings Papers

Diagnostics of Rolling Element Bearings by Means of the Higuchy Fractal Dimension

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

Proc. ASME. IDETC-CIE2015, Volume 8: 27th Conference on Mechanical Vibration and Noise, V008T13A069, August 2–5, 2015

Paper No: DETC2015-46609

DOI: https://doi.org/10.1115/DETC2015-46609

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Topics: Dimensions, Fractals, Rolling bearings, Damage, Bearings, Chaos, Failure, Filters, Signals

Proceedings Papers

Unbalance Identification in Large Steam Turbo-Generator Unit Using a Model-Based Method

Paolo Pennacchi, Andrea Vania, Steven Chatterton, Ionel Nistor, Philippe Voinis, Roberto Ricci, Pietro Borghesani

Proc. ASME. IDETC-CIE2013, Volume 8: 22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise, V008T13A053, August 4–7, 2013

Paper No: DETC2013-13238

DOI: https://doi.org/10.1115/DETC2013-13238

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Topics: Bearings, Condition monitoring, Damping, Downtime, Energy generation, Finite element analysis, Inspection, Machinery, Maintenance, Nuclear power stations

Proceedings Papers

Detection of Unsteady Flow in a Kaplan Hydraulic Turbine Using Machine Mechanical Model and Rotor Measured Vibrations

Paolo Pennacchi, Andrea Vania, Steven Chatterton, Ezio Tanzi

Proc. ASME. GT2012, Volume 7: Structures and Dynamics, Parts A and B, 739-748, June 11–15, 2012

Paper No: GT2012-69995

DOI: https://doi.org/10.1115/GT2012-69995

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Topics: Hydraulic turbines, Machinery, Rotors, Unsteady flow, Vibration, Turbines, Design, Flow (Dynamics), Vortices, Bubbles

Proceedings Papers

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

Paolo Pennacchi, Andrea Vania, Franco Frattaroli

Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 217-226, June 14–18, 2010

Paper No: GT2010-22941

DOI: https://doi.org/10.1115/GT2010-22941

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Topics: Steam turbines, Trains, Vibration, Machinery, Excitation, Probes

Journal citation

NARROW

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

Effect of Scratches on a Tilting-Pad Journal Bearing

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

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

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

Behavior of Tilting–Pad Journal Bearings With Large Machining Error on Pads

Development of an Active Control System for Rotating Machinery by Means of Tilting Pad Journal Bearings

Analysis of the Dynamic Behavior of Two High-Pressure Turbines for the Possible Detection of Rub Symptoms

Behavior of a Tilting–Pad Journal Bearing With Different Load Directions

An Experimental Study of Nonlinear Oil-Film Forces in a Tilting-Pad Journal Bearing

Diagnostics of Rolling Element Bearings by Means of the Higuchy Fractal Dimension

Unbalance Identification in Large Steam Turbo-Generator Unit Using a Model-Based Method

Detection of Unsteady Flow in a Kaplan Hydraulic Turbine Using Machine Mechanical Model and Rotor Measured Vibrations

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

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