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Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT28A004, June 7–11, 2021

Paper No: GT2021-59725

DOI: https://doi.org/10.1115/GT2021-59725

View Paper titled, System Level Analysis of Compressor Eye-Labyrinth Seal Rotordynamic Forces: A Computational Fluid Dynamics Approach

Topics: Compressors, Computational fluid dynamics, Rotordynamics

Proceedings Papers

Test and Theory for a Refined Structural Model of a Hirth Coupling

Baik Jin Kim, Joseph Oh, Alan Palazzolo

Paper No: GT2021-59970

DOI: https://doi.org/10.1115/GT2021-59970

View Paper titled, Test and Theory for a Refined Structural Model of a Hirth Coupling

Topics: Algorithms, Compressors, Computation, Deformation, Finishes, Finite element analysis, Finite element methods, Force measurement, Geometry, Modal analysis

Journal Articles

Tilt Pad Bearing Distributed Pad Inlet Temperature With Machine Learning—Part I: Static and Dynamic Characteristics

Jongin Yang, Alan Palazzolo

J. Tribol. June 2022, 144(6): 061801.

Paper No: TRIB-20-1503

DOI: https://doi.org/10.1115/1.4052171

Published Online: September 3, 2021

View Article titled, Tilt Pad Bearing Distributed Pad Inlet Temperature With Machine Learning—Part I: Static and Dynamic Characteristics

Topics: Finite element methods, Fluid films, Temperature, Rotors, Bearings, Machine learning, Flow (Dynamics), Computational fluid dynamics, Temperature distribution, Fluids

Journal Articles

Tilt Pad Bearing Distributed Pad Inlet Temperature With Machine Learning—Part II: Morton Effect

Jongin Yang, Alan Palazzolo

J. Tribol. June 2022, 144(6): 061802.

Paper No: TRIB-20-1504

DOI: https://doi.org/10.1115/1.4052172

Published Online: September 3, 2021

View Article titled, Tilt Pad Bearing Distributed Pad Inlet Temperature With Machine Learning—Part II: Morton Effect

Topics: Finite element methods, Rotors, Simulation, Temperature, Transients (Dynamics), Fluid films, Bearings, Vibration

Journal Articles

Design and Hardware in-the-Loop Validation of an Effective Super-Twisting Controller for Stick-Slip Suppression in Drill-String Systems

Abdelbasset Krama, Mohamed Gharib, Shady S. Refaat, Alan Palazzolo

J. Dyn. Sys., Meas., Control. November 2021, 143(11): 111008.

Paper No: DS-21-1004

DOI: https://doi.org/10.1115/1.4051853

Published Online: August 13, 2021

View Article titled, Design and Hardware in-the-Loop Validation of an Effective Super-Twisting Controller for Stick-Slip Suppression in Drill-String Systems

Topics: Control equipment, Drill strings, Stick-slip, Hardware, Motors, Bits (Tools), Electromagnetic induction

Journal Articles

Computational Fluid Dynamics—Machine Learning Prediction of Machinery Coupling Windage Heating and Power Loss

Ahmad Dawahdeh, Joseph Oh, Tianbo Zhai, Alan Palazzolo

J. Heat Transfer. August 2021, 143(8): 082201.

Paper No: HT-20-1501

DOI: https://doi.org/10.1115/1.4051351

Published Online: June 28, 2021

View Article titled, Computational Fluid Dynamics—Machine Learning Prediction of Machinery Coupling Windage Heating and Power Loss

Topics: Computational fluid dynamics, Machine learning, Simulation, Temperature

Proceedings Papers

Dynamic Characteristics of TEHD Tilt Pad Journal Bearing Simulation Including Multiple Mode Pad Flexibility Model

Jinsang Kim, Alan Palazzolo

Proc. ASME. DETC93, 14th Biennial Conference on Mechanical Vibration and Noise: Vibration of Rotating Systems, 363-379, September 19–22, 1993

Paper No: DETC1993-0213

DOI: https://doi.org/10.1115/DETC1993-0213

View Paper titled, Dynamic Characteristics of TEHD Tilt Pad Journal Bearing Simulation Including Multiple Mode Pad Flexibility Model

Topics: Bearings, Damping, Deflection, Deformation, Degrees of freedom, Equilibrium (Physics), Heat conduction, Heat transfer, Journal bearings, Lubricants

Proceedings Papers

Combined Piezoelectric-Hydraulic Actuator Based Active Vibration Control for Rotordynamic System

Punan Tang, Alan Palazzolo, Albert Kascak, Gerald Montague, Wenduan Li

Proc. ASME. DETC93, 14th Biennial Conference on Mechanical Vibration and Noise: Vibration and Control of Mechanical Systems, 223-241, September 19–22, 1993

Paper No: DETC1993-0238

DOI: https://doi.org/10.1115/DETC1993-0238

View Paper titled, Combined Piezoelectric-Hydraulic Actuator Based Active Vibration Control for Rotordynamic System

Topics: Actuators, Vibration control, Bulk modulus, Fluids, Leakage, Machinery, Piezoelectric actuators, Pistons, Rotors, Vibration

Proceedings Papers

An Innovative Design for Drillstring Testbed for High Pressure High Temperature Drilling

Randall Tucker, Alan Palazzolo, Mohamed Gharib

Proc. ASME. IMECE2020, Volume 8: Energy, V008T08A034, November 16–19, 2020

Paper No: IMECE2020-23608

DOI: https://doi.org/10.1115/IMECE2020-23608

View Paper titled, An Innovative Design for Drillstring Testbed for High Pressure High Temperature Drilling

Topics: Design, Drill strings, Drilling, High pressure (Physics), High temperature, Hardware, Pressure, Rocks, Torque, American Petroleum Institute

Proceedings Papers

A Nonlinear Magnetic Circuit Analysis of a Permanent Magnet Biased Homopolar Bearing

Andrew Kenny, Alan Palazzolo

Proc. ASME. DETC99, Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 1097-1104, September 12–16, 1999

Paper No: DETC99/VIB-8257

DOI: https://doi.org/10.1115/DETC99/VIB-8257

View Paper titled, A Nonlinear Magnetic Circuit Analysis of a Permanent Magnet Biased Homopolar Bearing

Topics: Bearings, Circuits, Magnetic bearings, Permanent magnets

Proceedings Papers

Optimized Realization of Fault-Tolerant Heteropolar Magnetic Bearings for Active Vibration Control

Uhn Joo Na, Alan Palazzolo

Proc. ASME. DETC99, Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 1105-1116, September 12–16, 1999

Paper No: DETC99/VIB-8258

DOI: https://doi.org/10.1115/DETC99/VIB-8258

View Paper titled, Optimized Realization of Fault-Tolerant Heteropolar Magnetic Bearings for Active Vibration Control

Topics: Magnetic bearings, Optimization, Vibration control

Proceedings Papers

Flow Field Instability and Rotordynamic Impedances for an Open Impeller Centrifugal Pump in Transient Four-Quadrant Regimes

Md Shujan Ali, Farzam Mortazavi, Alan Palazzolo

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT29A009, September 21–25, 2020

Paper No: GT2020-14841

DOI: https://doi.org/10.1115/GT2020-14841

View Paper titled, Flow Field Instability and Rotordynamic Impedances for an Open Impeller Centrifugal Pump in Transient Four-Quadrant Regimes

Topics: Centrifugal pumps, Computational fluid dynamics, Flow (Dynamics), Impellers, Transients (Dynamics)

Journal Articles

Three-Dimensional Solid Finite Element Contact Model for Rotordynamic Analysis: Experiment and Simulation

Joseph Oh, Baik Jin Kim, Alan Palazzolo

J. Vib. Acoust. June 2021, 143(3): 031007.

Paper No: VIB-20-1347

DOI: https://doi.org/10.1115/1.4048556

Published Online: October 13, 2020

View Article titled, Three-Dimensional Solid Finite Element Contact Model for Rotordynamic Analysis: Experiment and Simulation

Topics: Bearings, Finite element analysis, Rotor assembly, Rotors, Stiffness, Surface roughness, Stress

Journal Articles

A Review of Journal Bearing Thermal Effects on Rotordynamic Response

Dongil Shin, Jongin Yang, Xiaomeng Tong, Junho Suh, Alan Palazzolo

J. Tribol. March 2021, 143(3): 031803.

Paper No: TRIB-19-1508

DOI: https://doi.org/10.1115/1.4048167

Published Online: September 21, 2020

View Article titled, A Review of Journal Bearing Thermal Effects on Rotordynamic Response

Topics: Bearings, Computational fluid dynamics, Journal bearings, Modeling, Rotors, Temperature, Temperature effects, Viscosity, Fluids

Journal Articles

Computational Fluid Dynamics Based Mixing Prediction for Tilt Pad Journal Bearing TEHD Modeling—Part II: Implementation With Machine Learning

Jongin Yang, Alan Palazzolo

J. Tribol. January 2021, 143(1): 011802.

Paper No: TRIB-19-1340

DOI: https://doi.org/10.1115/1.4047751

Published Online: August 3, 2020

View Article titled, Computational Fluid Dynamics Based Mixing Prediction for Tilt Pad Journal Bearing TEHD Modeling—Part II: Implementation With Machine Learning

Topics: Artificial neural networks, Computational fluid dynamics, Flow (Dynamics), Machine learning, Modeling, Temperature, Journal bearings, Pressure

Journal Articles

Computational Fluid Dynamics Based Mixing Prediction for Tilt Pad Journal Bearing TEHD Modeling—Part I: TEHD-CFD Model Validation and Improvements

Jongin Yang, Alan Palazzolo

J. Tribol. January 2021, 143(1): 011801.

Paper No: TRIB-19-1339

DOI: https://doi.org/10.1115/1.4047750

Published Online: August 3, 2020

View Article titled, Computational Fluid Dynamics Based Mixing Prediction for Tilt Pad Journal Bearing TEHD Modeling—Part I: TEHD-CFD Model Validation and Improvements

Topics: Computational fluid dynamics, Temperature, Stiffness, Modeling, Damping, Bearings

Journal Articles

Simulation, Test, and Mitigation of ½× Forward Whirl Following Rotor Drop Onto Auxiliary Bearings

Xiao Kang, Alan Palazzolo

J. Eng. Gas Turbines Power. April 2020, 142(4): 041020.

Paper No: GTP-19-1522

DOI: https://doi.org/10.1115/1.4045196

Published Online: February 10, 2020

View Article titled, Simulation, Test, and Mitigation of ½× Forward Whirl Following Rotor Drop Onto Auxiliary Bearings

Topics: Bearings, Rotors, Whirls, Simulation

Journal Articles

Stability of Non-Axisymmetric Rotor and Bearing Systems Modeled With Three-Dimensional-Solid Finite Elements

Joseph Oh, Alan Palazzolo, Lingnan Hu

J. Vib. Acoust. February 2020, 142(1): 011010.

Paper No: VIB-19-1059

DOI: https://doi.org/10.1115/1.4045099

Published Online: November 18, 2019

View Article titled, Stability of Non-Axisymmetric Rotor and Bearing Systems Modeled With Three-Dimensional-Solid Finite Elements

Topics: Bearings, Rotors, Stability, Damping

Journal citation

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Supplemental Material

Test and Theory for a Refined Structural Model of a Hirth Coupling

Drillstring Simulator: A Novel Software Model for Stick–Slip And Bit-Bounce Vibrations

System Level Analysis of Compressor Eye-Labyrinth Seal Rotordynamic Forces: A Computational Fluid Dynamics Approach

Test and Theory for a Refined Structural Model of a Hirth Coupling

Tilt Pad Bearing Distributed Pad Inlet Temperature With Machine Learning—Part I: Static and Dynamic Characteristics

Tilt Pad Bearing Distributed Pad Inlet Temperature With Machine Learning—Part II: Morton Effect

Design and Hardware in-the-Loop Validation of an Effective Super-Twisting Controller for Stick-Slip Suppression in Drill-String Systems

Computational Fluid Dynamics—Machine Learning Prediction of Machinery Coupling Windage Heating and Power Loss

Dynamic Characteristics of TEHD Tilt Pad Journal Bearing Simulation Including Multiple Mode Pad Flexibility Model

Combined Piezoelectric-Hydraulic Actuator Based Active Vibration Control for Rotordynamic System

An Innovative Design for Drillstring Testbed for High Pressure High Temperature Drilling

A Nonlinear Magnetic Circuit Analysis of a Permanent Magnet Biased Homopolar Bearing

Optimized Realization of Fault-Tolerant Heteropolar Magnetic Bearings for Active Vibration Control

Flow Field Instability and Rotordynamic Impedances for an Open Impeller Centrifugal Pump in Transient Four-Quadrant Regimes

Three-Dimensional Solid Finite Element Contact Model for Rotordynamic Analysis: Experiment and Simulation

A Review of Journal Bearing Thermal Effects on Rotordynamic Response

Computational Fluid Dynamics Based Mixing Prediction for Tilt Pad Journal Bearing TEHD Modeling—Part II: Implementation With Machine Learning

Computational Fluid Dynamics Based Mixing Prediction for Tilt Pad Journal Bearing TEHD Modeling—Part I: TEHD-CFD Model Validation and Improvements

Simulation, Test, and Mitigation of ½× Forward Whirl Following Rotor Drop Onto Auxiliary Bearings

Stability of Non-Axisymmetric Rotor and Bearing Systems Modeled With Three-Dimensional-Solid Finite Elements

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