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Andrea Vania
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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
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 Article titled, An Unconventional Method for the Diagnosis and Study of Generator Rotor Thermal Bows
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Topics: Generators, Regression models, Rotors, Vibration
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75005
https://doi.org/10.1115/GT2018-75005
View Paper titled, Unconventional Techniques for the Analysis of Experimental Spiral Vibrations
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75042
https://doi.org/10.1115/GT2018-75042
View Paper titled, Numerical Modeling of Thermally-Induced Vibration in Rotor Caused by Light-Rub Against Brush Seal
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75009
https://doi.org/10.1115/GT2018-75009
View Paper titled, Rotordynamic Characterization of Labyrinth Seals in Steam Turbines: Effects of Thermal and Mechanical Loads
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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
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 Article titled, 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
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63012
https://doi.org/10.1115/GT2017-63012
View Paper titled, 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), 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
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63014
https://doi.org/10.1115/GT2017-63014
View Paper titled, Sensitivity Analysis of the One-Control Volume Bulk-Flow Model for a 14 Teeth-on-Stator Straight-Through Labyrinth Seal
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56674
https://doi.org/10.1115/GT2016-56674
View Paper titled, Behavior of Tilting–Pad Journal Bearings With Large Machining Error on Pads
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Topics: Errors, Journal bearings, Machining, Bearings, Stress, Geometry, Dimensions, Clearances (Engineering), Damping, Flow (Dynamics)
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56627
https://doi.org/10.1115/GT2016-56627
View Paper titled, Analysis of the Dynamic Behavior of Two High-Pressure Turbines for the Possible Detection of Rub Symptoms
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Topics: High pressure (Physics), Turbines, Machinery, Rotors, Vibration, Cascades (Fluid dynamics), Rotordynamics, Steady state, Steam turbines, Transients (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
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56632
https://doi.org/10.1115/GT2016-56632
View Paper titled, Development of an Active Control System for Rotating Machinery by Means of Tilting Pad Journal Bearings
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Topics: Control systems, Journal bearings, Machinery, Vibration, Bearings, Compressors, Control equipment, Design, Engineering simulation, Numerical 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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2015-46609
https://doi.org/10.1115/DETC2015-46609
View Paper titled, Diagnostics of Rolling Element Bearings by Means of the Higuchy Fractal Dimension
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Topics: Dimensions, Fractals, Rolling bearings, Damage, Bearings, Chaos, Failure, Filters, Signals
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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2015-46598
https://doi.org/10.1115/DETC2015-46598
View Paper titled, Behavior of a Tilting–Pad Journal Bearing With Different Load Directions
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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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2015-46601
https://doi.org/10.1115/DETC2015-46601
View Paper titled, An Experimental Study of Nonlinear Oil-Film Forces in a Tilting-Pad Journal Bearing
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Topics: Journal bearings, Bearings, Machinery, Stress, Damping, Equilibrium (Physics), Stability, Stiffness, Theoretical analysis
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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2013-13238
https://doi.org/10.1115/DETC2013-13238
View Paper titled, Unbalance Identification in Large Steam Turbo-Generator Unit Using a Model-Based Method
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69995
https://doi.org/10.1115/GT2012-69995
View Paper titled, Detection of Unsteady Flow in a Kaplan Hydraulic Turbine Using Machine Mechanical Model and Rotor Measured Vibrations
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22941
https://doi.org/10.1115/GT2010-22941
View Paper titled, Torsional Vibrations Caused by Geared Coupling in a Shaft Train Driven by a Steam Turbine
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Topics: Steam turbines, Trains, Vibration, Machinery, Excitation, Probes
Proceedings Papers

Case History of Pad Fluttering in a Tilting-Pad Journal Bearing

Paolo Pennacchi, Andrea Vania, Steven Chatterton, Emanuel Pesatori
Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 227-233, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22946
https://doi.org/10.1115/GT2010-22946
View Paper titled, Case History of Pad Fluttering in a Tilting-Pad Journal Bearing
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Topics: Journal bearings, Vibration, Turbines, Whirls, Bearings, Emission spectroscopy, Errors, Excitation, Machinery, Rotors
Journal Articles

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

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 Article titled, 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
Proceedings Papers

Application of Robust Regression Methods to Rotor Balancing Using High Breakdown Point and Bounded-Influence Estimators

Paolo Pennacchi, Andrea Vania, Steven Chatterton
Proc. ASME. IDETC-CIE2009, Volume 1: 22nd Biennial Conference on Mechanical Vibration and Noise, Parts A and B, 1033-1042, August 30–September 2, 2009
Publisher: American Society of Mechanical Engineers
Paper No: DETC2009-86475
https://doi.org/10.1115/DETC2009-86475
View Paper titled, Application of Robust Regression Methods to Rotor Balancing Using High Breakdown Point and Bounded-Influence Estimators
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Topics: Rotor balancing, Engineering simulation, Machinery, Power stations, Robustness, Simulation, Turbogenerators, Vibration
Proceedings Papers

Model Based Analysis of Steam-Whip Instability Onsets Occurred in a Power Plant

Paolo Pennacchi, Andrea Vania
Proc. ASME. IDETC-CIE2009, Volume 1: 22nd Biennial Conference on Mechanical Vibration and Noise, Parts A and B, 1025-1032, August 30–September 2, 2009
Publisher: American Society of Mechanical Engineers
Paper No: DETC2009-86474
https://doi.org/10.1115/DETC2009-86474
View Paper titled, Model Based Analysis of Steam-Whip Instability Onsets Occurred in a Power Plant
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Topics: Power stations, Steam, Flow (Dynamics), Eigenvalues, Machinery, Stiffness, Vibration, Whirls, Hardening, Pressure