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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

J. Eng. Gas Turbines Power. January 2023, 145(1): 011025.

Paper No: GTP-22-1404

DOI: https://doi.org/10.1115/1.4055452

Published Online: December 14, 2022

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Topics: Rotors, Bearings

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

Paper No: GT2022-79755

DOI: https://doi.org/10.1115/GT2022-79755

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Topics: Rotordynamics, Whirls, Rotors, Design, Eigenvalues, Stability, Algorithms, Economics , Fatigue, Finite element analysis

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

Paper No: GT2022-79752

DOI: https://doi.org/10.1115/GT2022-79752

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Topics: Finite element analysis, Rotors, Bearings, Excitation, Finite element methods, Manufacturing, Metrology, Rotor assembly, Stress, Cooling

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

Paper No: GT2019-91596

DOI: https://doi.org/10.1115/GT2019-91596

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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

Paper No: GT2017-63687

DOI: https://doi.org/10.1115/GT2017-63687

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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

Paper No: GT2016-56323

DOI: https://doi.org/10.1115/GT2016-56323

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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

Paper No: GT2016-56324

DOI: https://doi.org/10.1115/GT2016-56324

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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

J. Dyn. Sys., Meas., Control. September 2015, 137(9): 091011.

Paper No: DS-14-1463

DOI: https://doi.org/10.1115/1.4030612

Published Online: September 1, 2015

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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

Paper No: GT2015-42862

DOI: https://doi.org/10.1115/GT2015-42862

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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

Paper No: IMECE2014-37365

DOI: https://doi.org/10.1115/IMECE2014-37365

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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

Paper No: GT2014-25996

DOI: https://doi.org/10.1115/GT2014-25996

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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

Paper No: DETC2013-13699

DOI: https://doi.org/10.1115/DETC2013-13699

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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

Paper No: DETC2013-13712

DOI: https://doi.org/10.1115/DETC2013-13712

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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

J. Tribol. July 2012, 134(3): 031704.

DOI: https://doi.org/10.1115/1.4006928

Published Online: June 19, 2012

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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

Paper No: GT2011-45880

DOI: https://doi.org/10.1115/GT2011-45880

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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,

J. Fluids Eng. March 2002, 124(1): 182–185.

DOI: https://doi.org/10.1115/1.1445140

Published Online: August 8, 2001

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Topics: Diesel, Drops, Fuels, Sprays, Evaporation, Temperature

Journal citation

NARROW

Finite Element Analysis of Bent Rotors

Mixed Whirl Modes in Numerical Rotordynamics Analysis

Finite Element Analysis of Bent Rotors

A Numerical Thermohydrodynamic Study of Fixed Pad Oil Lubricated Thrust Bearings

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

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

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

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

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

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

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

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

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

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

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

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

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