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Journal Articles

Finite Element Analysis of Bent Rotors

Konrad Juethner, Ted Rose, J. S. Kumar, Jianming Cao, Gregory M. Savela, Chris J. Zuck, Parag H. Mathuria
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2023, 145(1): 011025.
Paper No: GTP-22-1404
https://doi.org/10.1115/1.4055452
Published Online: December 14, 2022
View Article titled, Finite Element Analysis of Bent Rotors
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Topics: Rotors, Bearings
Proceedings Papers

Finite Element Analysis of Bent Rotors

Konrad Juethner, Ted Rose, J. S. Kumar, Jianming Cao, Gregory M. Savela, Chris J. Zuck, Parag H. Mathuria
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT26A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-79752
https://doi.org/10.1115/GT2022-79752
View Paper titled, Finite Element Analysis of Bent Rotors
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Topics: Finite element analysis, Rotors, Bearings, Excitation, Finite element methods, Manufacturing, Metrology, Rotor assembly, Stress, Cooling
Proceedings Papers

Mixed Whirl Modes in Numerical Rotordynamics Analysis

Konrad Juethner, Ted Rose, J. S. Kumar, Jianming Cao, Gregory M. Savela, Chris J. Zuck, Parag H. Mathuria
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT26A004, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-79755
https://doi.org/10.1115/GT2022-79755
View Paper titled, Mixed Whirl Modes in Numerical Rotordynamics Analysis
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Topics: Rotordynamics, Whirls, Rotors, Design, Eigenvalues, Stability, Algorithms, Economics , Fatigue, Finite element analysis
Proceedings Papers

A Numerical Thermohydrodynamic Study of Fixed Pad Oil Lubricated Thrust Bearings

Saeid Dousti, Paul Allaire, Jianming Cao, Bradley Nichols, Timothy Dimond
Proc. ASME. GT2019, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T26A022, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91596
https://doi.org/10.1115/GT2019-91596
View Paper titled, A Numerical Thermohydrodynamic Study of Fixed Pad Oil Lubricated Thrust Bearings
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Topics: Thermohydrodynamics, Thrust bearings, Lubricants, Stress, Temperature, Flow (Dynamics), Heat conduction, Heating, High temperature, Machinery
Proceedings Papers

Dynamic Properties of Multi-Lobe Water Lubricated Bearings With Temporal and Convective Inertia Considerations

Saeid Dousti, Paul Allaire, Bradley Nichols, Jianming Cao, Timothy Dimond
Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT34A016, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63687
https://doi.org/10.1115/GT2017-63687
View Paper titled, Dynamic Properties of Multi-Lobe Water Lubricated Bearings With Temporal and Convective Inertia Considerations
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Topics: Bearings, Inertia (Mechanics), Water, Geometry, Damping, Lubricants, Pumps, Stability, Stiffness
Proceedings Papers

Auxiliary Bearing System Optimization for AMB Supported Rotors Based on Rotor Drop Analysis: Part I — Rotor Drop Analysis Method

Jianming Cao, Paul Allaire, Timothy Dimond, Saeid Dousti
Proc. ASME. GT2016, Volume 7A: Structures and Dynamics, V07AT30A002, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56323
https://doi.org/10.1115/GT2016-56323
View Paper titled, Auxiliary Bearing System Optimization for AMB Supported Rotors Based on Rotor Drop Analysis: Part I — Rotor Drop Analysis Method
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Topics: Bearings, Optimization, Rotors, Stress, Ball bearings, American Petroleum Institute, Design, Experimental methods, Finite element analysis, Magnetic bearings
Proceedings Papers

Auxiliary Bearing System Optimization for AMB Supported Rotors Based on Rotor Drop Analysis: Part II — Optimization for Example Vertical and Horizontal Machines

Jianming Cao, Paul Allaire, Timothy Dimond, Saeid Dousti
Proc. ASME. GT2016, Volume 7A: Structures and Dynamics, V07AT30A003, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56324
https://doi.org/10.1115/GT2016-56324
View Paper titled, Auxiliary Bearing System Optimization for AMB Supported Rotors Based on Rotor Drop Analysis: Part II — Optimization for Example Vertical and Horizontal Machines
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Topics: Bearings, Machinery, Optimization, Rotors, Design, Ball bearings, Bearing design, Compressors, Damage, Damping
Journal Articles

Coupled Lateral and Torsional Nonlinear Transient Rotor–Bearing System Analysis With Applications

Jianming Cao, Paul Allaire, Timothy Dimond
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. September 2015, 137(9): 091011.
Paper No: DS-14-1463
https://doi.org/10.1115/1.4030612
Published Online: September 1, 2015
View Article titled, Coupled Lateral and Torsional Nonlinear Transient Rotor–Bearing System Analysis With Applications
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Topics: Bearings, Engines, Motors, Rotors, Torque, Transient analysis, Transients (Dynamics), Disks
Proceedings Papers

Reduction of Vibration and Power Loss in Industrial Turbochargers With Improved Tilting Pad Bearing Design

Jianming Cao, Timothy Dimond, Paul Allaire
Proc. ASME. GT2015, Volume 7A: Structures and Dynamics, V07AT30A004, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42862
https://doi.org/10.1115/GT2015-42862
View Paper titled, Reduction of Vibration and Power Loss in Industrial Turbochargers With Improved Tilting Pad Bearing Design
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Topics: Bearing design, Turbochargers, Vibration, Bearings, Compressors, Automotive industry, Dams, Pressure, Stability, Design
Proceedings Papers

Numerical Analysis of Flexible Rotor With Nonlinear Bearings and Squeeze Film Dampers

Jianming Cao, Timothy Dimond, Paul Allaire
Proc. ASME. IMECE2014, Volume 4B: Dynamics, Vibration, and Control, V04BT04A071, November 14–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2014-37365
https://doi.org/10.1115/IMECE2014-37365
View Paper titled, Numerical Analysis of Flexible Rotor With Nonlinear Bearings and Squeeze Film Dampers
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Topics: Bearings, Dampers, Numerical analysis, Rotors, Transient analysis, Fluid films, Compressors, Damping, Disks, Dynamic stability
Proceedings Papers

Coupled Lateral and Torsional Nonlinear Transient Solver With Application to Flexible Rotor-Bearing System

Jianming Cao, Tim Dimond, Paul Allaire
Proc. ASME. GT2014, Volume 7A: Structures and Dynamics, V07AT31A016, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25996
https://doi.org/10.1115/GT2014-25996
View Paper titled, Coupled Lateral and Torsional Nonlinear Transient Solver With Application to Flexible Rotor-Bearing System
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Topics: Bearings, Rotors, Transients (Dynamics), Dampers, Blades, Disks, Engines, Journal bearings, Motors, Nonlinear equations
Proceedings Papers

Rotordynamic Analysis of a Rotor-Disk System Including a Synchronously Reduced Modal Truncation Method

Timothy Dimond, Jawad Chaudhry, Matthew Wagner, Feng He, Jianming Cao, Paul Allaire
Proc. ASME. IDETC-CIE2013, Volume 8: 22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise, V008T13A058, August 4–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: DETC2013-13699
https://doi.org/10.1115/DETC2013-13699
View Paper titled, Rotordynamic Analysis of a Rotor-Disk System Including a Synchronously Reduced Modal Truncation Method
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Topics: Disks, Rotors, Bearings, Mode shapes, Rotordynamics, Stability, Eigenvalues, Errors, Uncertainty
Proceedings Papers

Nonlinear Modeling of Tilting-Pad Bearings With Application to a Flexible Rotor Analysis

Jianming Cao, Tim Dimond, Paul Allaire
Proc. ASME. IDETC-CIE2013, Volume 8: 22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise, V008T13A059, August 4–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: DETC2013-13712
https://doi.org/10.1115/DETC2013-13712
View Paper titled, Nonlinear Modeling of Tilting-Pad Bearings With Application to a Flexible Rotor Analysis
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Topics: Bearings, Modeling, Rotors, Transients (Dynamics), Compressors, Damping, Finite element methods, Machinery, Manufacturing, Pressure
Journal Articles

Temporal and Convective Inertia Effects in Plain Journal Bearings With Eccentricity, Velocity and Acceleration

Saeid Dousti, Jianming Cao, Amir Younan, Paul Allaire, Tim Dimond
Journal: Journal of Tribology
Publisher: ASME
Article Type: Hydrodynamic Lubrication
J. Tribol. July 2012, 134(3): 031704.
https://doi.org/10.1115/1.4006928
Published Online: June 19, 2012
View Article titled, Temporal and Convective Inertia Effects in Plain Journal Bearings With Eccentricity, Velocity and Acceleration
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Topics: Bearings, Inertia (Mechanics), Journal bearings, Reynolds number, Rotors, Turbulence, Steady state, Stability, Pressure, Damping
Proceedings Papers

Temporal and Convective Inertia Effects in Plain Journal Bearings With Eccentricity, Velocity and Acceleration

Saeid Dousti, Jianming Cao, Amir Younan, Paul Allaire, Tim Dimond
Proc. ASME. GT2011, Volume 6: Structures and Dynamics, Parts A and B, 549-558, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45880
https://doi.org/10.1115/GT2011-45880
View Paper titled, Temporal and Convective Inertia Effects in Plain Journal Bearings With Eccentricity, Velocity and Acceleration
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Topics: Inertia (Mechanics), Journal bearings, Bearings, Reynolds number, Turbulence, Viscosity, Fluid films, Lubricants, Rotors, Stress
Journal Articles

On the Theoretical Prediction of Fuel Droplet Size Distribution in Nonreactive Diesel Sprays

Jianming Cao, Associate Professor,
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Technical Papers
J. Fluids Eng. March 2002, 124(1): 182–185.
https://doi.org/10.1115/1.1445140
Published Online: August 8, 2001
View Article titled, On the Theoretical Prediction of Fuel Droplet Size Distribution in Nonreactive Diesel Sprays
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Topics: Diesel, Drops, Fuels, Sprays, Evaporation, Temperature