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Proceedings Papers

Tribological Evaluation of Coatings for Air Foil Bearing Applications

Eleftherios Iakovakis, Sepideh Aliasghari, Philip Bonello, Allan Matthews, Michael Burkinshaw, Simon Moore
Proc. ASME. GT2024, Volume 9: Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications; Steam Turbine, V009T17A003, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-121771
https://doi.org/10.1115/GT2024-121771
View Paper titled, Tribological Evaluation of Coatings for Air Foil Bearing Applications
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Topics: Coatings, Diamond films, Foil bearings, Friction, Lubricants, Tribology
Proceedings Papers

Effect of Tilt on Thermo-Hydrodynamic Model of a Thrust Air Foil Bearing

Talieh Pourashraf, Philip Bonello, Craig Lancaster
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT22A004, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123643
https://doi.org/10.1115/GT2024-123643
View Paper titled, Effect of Tilt on Thermo-Hydrodynamic Model of a Thrust Air Foil Bearing
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Topics: Foil bearings, Modeling, Thermohydrodynamics, Thrust, Thrust bearings, Bearings, Disks, Accounting, Deformation, Heat
Proceedings Papers

The Application of the Arbitrary-Order Galerkin Reduction Method to the Dynamic Analysis of a Rotor With a Preloaded Single-Pad Foil-Air Bearing

Ibrahim Ghalayini, Philip Bonello
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, V08AT22A017, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82585
https://doi.org/10.1115/GT2022-82585
View Paper titled, The Application of the Arbitrary-Order Galerkin Reduction Method to the Dynamic Analysis of a Rotor With a Preloaded Single-Pad Foil-Air Bearing
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Topics: Dynamic analysis, Foil bearings, Rotors, Clearances (Engineering), Delays, Engineering simulation, Simulation, Air bearings, Condensation, Finite element analysis
Journal Articles

The Application of the Arbitrary-Order Galerkin Reduction Method to the Dynamic Analysis of a Rotor With a Preloaded Single-Pad Foil-Air Bearing

Ibrahim Ghalayini, Philip Bonello
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2022, 144(9): 091015.
Paper No: GTP-22-1240
https://doi.org/10.1115/1.4055188
Published Online: August 26, 2022
View Article titled, The Application of the Arbitrary-Order Galerkin Reduction Method to the Dynamic Analysis of a Rotor With a Preloaded Single-Pad Foil-Air Bearing
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Topics: Clearances (Engineering), Foil bearings, Rotors, Vibration, Dynamic analysis, Equilibrium (Physics), Stability, Modal analysis, Damping, Simulation
Journal Articles

Determination of Simultaneous Steady-State Movements Using Blade Tip Timing Data

Mohamed Elsayed Mohamed, Philip Bonello, Peter Russhard
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. February 2020, 142(1): 011017.
Paper No: VIB-19-1284
https://doi.org/10.1115/1.4045265
Published Online: November 18, 2019
View Article titled, Determination of Simultaneous Steady-State Movements Using Blade Tip Timing Data
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Topics: Blades, Probes
Proceedings Papers

Computational Study of the Non-Parametric Squeeze Film Damper Bearing Inverse Model Based on Artificial Neural Networks Applied to a Rotor-Casing System Running on Unsupported SFDs

Sergio G. Torres Cedillo, Ghaith Ghanim Al-Ghazal, Philip Bonello, Jacinto Cortés Pérez, Alberto Reyes Solís
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT33A004, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90390
https://doi.org/10.1115/GT2019-90390
View Paper titled, Computational Study of the Non-Parametric Squeeze Film Damper Bearing Inverse Model Based on Artificial Neural Networks Applied to a Rotor-Casing System Running on Unsupported SFDs
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Topics: Artificial neural networks, Bearings, Dampers, Rotors, Aircraft engines, Vibration, Complex systems, Instrumentation, Manufacturing, Reliability
Proceedings Papers

Determination of the Vibration Within a Squeeze-Film Damper Under Rotational Unbalance Conditions From Externally Mounted Sensors

Ghaith Ghanim Al-Ghazal, Philip Bonello, Sergio G. Torres Cedillo
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT33A001, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90017
https://doi.org/10.1115/GT2019-90017
View Paper titled, Determination of the Vibration Within a Squeeze-Film Damper Under Rotational Unbalance Conditions From Externally Mounted Sensors
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Topics: Dampers, Sensors, Vibration, Bearings, Rotors, Vibration measurement, Artificial neural networks, Instrumentation, Inverse problems
Proceedings Papers

Determination of Simultaneous Steady-State Movements Using Blade Tip Timing Data

Mohamed Mohamed, Philip Bonello, Peter Russhard
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT35A001, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90042
https://doi.org/10.1115/GT2019-90042
View Paper titled, Determination of Simultaneous Steady-State Movements Using Blade Tip Timing Data
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Topics: Blades, Steady state, Probes, Errors, Uncertainty, Calibration, Chords (Trusses), Disks, Equilibrium (Physics), Finite element analysis
Proceedings Papers

Effectiveness Testing of an Inverse Method for Balancing Nonlinear Rotordynamic Systems

Sergio G. Torres Cedillo, Philip Bonello, Ghaith Ghanim Al-Ghazal, Jacinto Cortés Pérez, Alberto Reyes Solis
Proc. ASME. GT2018, Volume 7A: Structures and Dynamics, V07AT33A005, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75145
https://doi.org/10.1115/GT2018-75145
View Paper titled, Effectiveness Testing of an Inverse Method for Balancing Nonlinear Rotordynamic Systems
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Topics: Aircraft engines, Bearings, Dampers, Inverse problems, Noise (Sound), Rotors, Sensors, Springs, Testing, Vibration
Proceedings Papers

Improved Empirical Identification of the Inverse Model of a Squeeze-Film Damper Bearing Based on a Recurrent Neural Network

Ghaith Ghanim Al-Ghazal, Philip Bonello, Sergio G. Torres Cedillo
Proc. ASME. GT2018, Volume 7A: Structures and Dynamics, V07AT33A016, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75777
https://doi.org/10.1115/GT2018-75777
View Paper titled, Improved Empirical Identification of the Inverse Model of a Squeeze-Film Damper Bearing Based on a Recurrent Neural Network
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Topics: Artificial neural networks, Bearings, Dampers, Aircraft engines, Rotors, Vibration, Displacement, Excitation, Instrumentation, Inverse problems
Proceedings Papers

The Determination of Steady-State Movements Using Blade Tip Timing Data

Mohamed Mohamed, Philip Bonello, Peter Russhard
Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT35A010, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75488
https://doi.org/10.1115/GT2018-75488
View Paper titled, The Determination of Steady-State Movements Using Blade Tip Timing Data
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Topics: Blades, Steady state, Probes, Errors, Algorithms, Disks, Displacement, Finite element analysis, Finite element model, Instrumentation
Journal Articles

A Neural Network Identification Technique for a Foil-Air Bearing Under Variable Speed Conditions and Its Application to Unbalance Response Analysis

Mohd Firdaus Bin Hassan, Philip Bonello
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. March 2017, 139(2): 021501.
Paper No: TRIB-15-1328
https://doi.org/10.1115/1.4033455
Published Online: August 11, 2016
View Article titled, A Neural Network Identification Technique for a Foil-Air Bearing Under Variable Speed Conditions and Its Application to Unbalance Response Analysis
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Topics: Bearings, Excitation, Rotors, Artificial neural networks, Foil bearings, Displacement
Proceedings Papers

A Neural Network Identification Technique for a Foil-Air Bearing and its Application to Unbalance Response Analysis

Mohd Firdaus Bin Hassan, Philip Bonello
Proc. ASME. GT2015, Volume 7A: Structures and Dynamics, V07AT31A001, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42190
https://doi.org/10.1115/GT2015-42190
View Paper titled, A Neural Network Identification Technique for a Foil-Air Bearing and its Application to Unbalance Response Analysis
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Topics: Artificial neural networks, Foil bearings, Rotors, Bearings, Computer simulation, Displacement, Excitation
Proceedings Papers

Unbalance Identification and Balancing of Nonlinear Rotodynamic Systems

Sergio G. Torres Cedillo, Philip Bonello
Proc. ASME. GT2014, Volume 7A: Structures and Dynamics, V07AT31A004, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25290
https://doi.org/10.1115/GT2014-25290
View Paper titled, Unbalance Identification and Balancing of Nonlinear Rotodynamic Systems
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Topics: Aircraft engines, Bearings, Dampers, Engines, High pressure (Physics), Instrumentation, Machinery, Manufacturing, Noise (Sound), Rotors
Proceedings Papers

Nonlinear Dynamic Analysis of a Turbocharger on Foil-Air Bearings With Focus on Stability and Self-Excited Vibration

Philip Bonello, Hai Pham
Proc. ASME. GT2014, Volume 7B: Structures and Dynamics, V07BT32A003, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25176
https://doi.org/10.1115/GT2014-25176
View Paper titled, Nonlinear Dynamic Analysis of a Turbocharger on Foil-Air Bearings With Focus on Stability and Self-Excited Vibration
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Topics: Dynamic analysis, Foil bearings, Stability, Turbochargers, Vibration, Turbomachinery, Bearings, Equilibrium (Physics), Air bearings, Dynamics (Mechanics)
Proceedings Papers

Efficient Techniques for the Computation of the Nonlinear Dynamics of a Foil-Air Bearing Rotor System

Hai Pham, Philip Bonello
Proc. ASME. GT2013, Volume 7B: Structures and Dynamics, V07BT30A011, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-94389
https://doi.org/10.1115/GT2013-94389
View Paper titled, Efficient Techniques for the Computation of the Nonlinear Dynamics of a Foil-Air Bearing Rotor System
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Topics: Computation, Foil bearings, Nonlinear dynamics, Rotors, Bearings, Dynamic response, Dynamics (Mechanics), Errors, Turbomachinery
Proceedings Papers

An Investigation Into Two Alternative Approaches for the Identification of SFD Bearings for Aeroengine Analysis

Keir Groves, Philip Bonello
Proc. ASME. GT2011, Volume 6: Structures and Dynamics, Parts A and B, 537-547, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45818
https://doi.org/10.1115/GT2011-45818
View Paper titled, An Investigation Into Two Alternative Approaches for the Identification of SFD Bearings for Aeroengine Analysis
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Topics: Bearings, Computer simulation, Artificial neural networks, Rotors, Simulation, Cavitation, Compressibility, Computation, Design, Engines
Journal Articles

A Computational Parametric Analysis of the Vibration of a Three-Spool Aero-Engine Under Multifrequency Unbalance Excitation

Pham Minh Hai, Philip Bonello
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. July 2011, 133(7): 072504.
https://doi.org/10.1115/1.4002664
Published Online: March 22, 2011
View Article titled, A Computational Parametric Analysis of the Vibration of a Three-Spool Aero-Engine Under Multifrequency Unbalance Excitation
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Topics: Engines, Excitation, Rotors, Springs, Vibration, Aircraft engines, Bearings
Proceedings Papers

Identification of Numerical Squeeze-Film Damper Models for Efficient Aeroengine Vibration Analysis

Keir Groves, Philip Bonello
Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 101-111, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22393
https://doi.org/10.1115/GT2010-22393
View Paper titled, Identification of Numerical Squeeze-Film Damper Models for Efficient Aeroengine Vibration Analysis
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Topics: Dampers, Vibration analysis, Bearings, Interpolation, Polynomials, Pressure, Boundary-value problems, Cavitation, Dynamic analysis, Gates (Closures)
Proceedings Papers

A Computational Parametric Analysis of the Vibration of a Three-Spool Aero-Engine Under Multi-Frequency Unbalance Excitation

Pham Minh Hai, Philip Bonello
Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 959-969, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22801
https://doi.org/10.1115/GT2010-22801
View Paper titled, A Computational Parametric Analysis of the Vibration of a Three-Spool Aero-Engine Under Multi-Frequency Unbalance Excitation
Open the PDF for A Computational Parametric Analysis of the Vibration of a Three-Spool Aero-Engine Under Multi-Frequency Unbalance Excitation in another window
Topics: Aircraft engines, Excitation, Vibration, Rotors, Engines, Manufacturing, Springs, Dampers, Damping, Dynamic response