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Journal Articles

Nonlinear Dynamics of Stockbridge Dampers

O. Barry, J. W. Zu, D. C. D. Oguamanam
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. June 2015, 137(6): 061017.
Paper No: DS-13-1346
https://doi.org/10.1115/1.4029526
Published Online: June 1, 2015
View Article titled, Nonlinear Dynamics of Stockbridge Dampers
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Topics: Dampers, Nonlinear dynamics, Vibration, Mode shapes
Journal Articles

Forced Vibration of Overhead Transmission Line: Analytical and Experimental Investigation

O. Barry, J. W. Zu, D. C. D. Oguamanam
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. August 2014, 136(4): 041012.
Paper No: VIB-13-1393
https://doi.org/10.1115/1.4027578
Published Online: May 22, 2014
View Article titled, Forced Vibration of Overhead Transmission Line: Analytical and Experimental Investigation
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Topics: Dampers, Damping, Transmission lines, Vibration, Displacement, Tension
Proceedings Papers

Free Vibration Analysis of a Beam With an Attached In-Span Beam With Tip Mass

O. R. Barry, J. W. Zu, D. C. D. Oguamanam
Proc. ASME. DSCC2013, Volume 1: Aerial Vehicles; Aerospace Control; Alternative Energy; Automotive Control Systems; Battery Systems; Beams and Flexible Structures; Biologically-Inspired Control and its Applications; Bio-Medical and Bio-Mechanical Systems; Biomedical Robots and Rehab; Bipeds and Locomotion; Control Design Methods for Adv. Powertrain Systems and Components; Control of Adv. Combustion Engines, Building Energy Systems, Mechanical Systems; Control, Monitoring, and Energy Harvesting of Vibratory Systems, V001T06A002, October 21–23, 2013
Publisher: American Society of Mechanical Engineers
Paper No: DSCC2013-3733
https://doi.org/10.1115/DSCC2013-3733
View Paper titled, Free Vibration Analysis of a Beam With an Attached In-Span Beam With Tip Mass
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Topics: Dampers, Equations of motion, Finite element analysis, Free vibrations, Hamilton's principle, Stiffness, Stress, Transmission lines
Proceedings Papers

Free Vibration Analysis of a Beam Under Axial Load Carrying a Mass-Spring-Mass

O. R. Barry, Y. Zhu, J. W. Zu, D. C. D. Oguamanam
Proc. ASME. IDETC-CIE2012, Volume 1: 24th Conference on Mechanical Vibration and Noise, Parts A and B, 791-796, August 12–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: DETC2012-70144
https://doi.org/10.1115/DETC2012-70144
View Paper titled, Free Vibration Analysis of a Beam Under Axial Load Carrying a Mass-Spring-Mass
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Topics: Free vibrations, Springs, Stress, Equations of motion, Finite element methods, Mode shapes, Tension
Proceedings Papers

Optimization of Twin Tensioner Performance in a Belt-Driven Integrated Starter-Generator System for Micro-Hybrids

Adebukola Olatunde, J. W. Zu
Proc. ASME. IDETC-CIE2009, Volume 6: ASME Power Transmission and Gearing Conference; 3rd International Conference on Micro- and Nanosystems; 11th International Conference on Advanced Vehicle and Tire Technologies, 951-957, August 30–September 2, 2009
Publisher: American Society of Mechanical Engineers
Paper No: DETC2009-87110
https://doi.org/10.1115/DETC2009-87110
View Paper titled, Optimization of Twin Tensioner Performance in a Belt-Driven Integrated Starter-Generator System for Micro-Hybrids
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Topics: Belts, Generators, Optimization
Proceedings Papers

Nonlinear Free Vibration of a Rotor Shaft System With Viscoelastically Supported Bearings

N. Shabaneh, J. W. Zu
Proc. ASME. IDETC-CIE2003, Volume 5: 19th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 961-967, September 2–6, 2003
Publisher: American Society of Mechanical Engineers
Paper No: DETC2003/VIB-48417
https://doi.org/10.1115/DETC2003/VIB-48417
View Paper titled, Nonlinear Free Vibration of a Rotor Shaft System With Viscoelastically Supported Bearings
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Topics: Bearings, Free vibrations, Rotors, Damping, Dynamic analysis, Frequency response, Springs, Switches
Proceedings Papers

A New Multiple Point Asperity Model for Contact Between Nominally Flat Surfaces

A. Hariri, J. W. Zu, R. Ben Mrad
Proc. ASME. IMECE2006, Tribology, 109-116, November 5–10, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2006-13720
https://doi.org/10.1115/IMECE2006-13720
View Paper titled, A New Multiple Point Asperity Model for Contact Between Nominally Flat Surfaces
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Topics: Separation (Technology), Surface roughness
Proceedings Papers

Modeling of the Elastic Properties of Contact Between Nominally Flat Rough Surfaces Using a New Multiple Point Asperity Model

A. Hariri, J. W. Zu, R. Ben Mrad
Proc. ASME. IMECE2006, Tribology, 117-124, November 5–10, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2006-14130
https://doi.org/10.1115/IMECE2006-14130
View Paper titled, Modeling of the Elastic Properties of Contact Between Nominally Flat Rough Surfaces Using a New Multiple Point Asperity Model
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Topics: Elasticity, Modeling, Surface roughness, Computer simulation, Contact mechanics, Gaussian distribution, Stress
Journal Articles

Modeling of Elastic/Plastic Contact Between Nominally Flat Rough Surfaces Using an n -Point Asperity Model

A. Hariri, J. W. Zu, R. Ben Mrad
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 2006, 128(4): 876–885.
https://doi.org/10.1115/1.2345409
Published Online: May 3, 2006
View Article titled, Modeling of Elastic/Plastic Contact Between Nominally Flat Rough Surfaces Using an n -Point Asperity Model
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Topics: Deformation, Stress, Surface roughness, Gaussian distribution, Computer simulation
Journal Articles

n -Point Asperity Model for Contact Between Nominally Flat Surfaces

A. Hariri, J. W. Zu, R. Ben Mrad
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 2006, 128(3): 505–514.
https://doi.org/10.1115/1.2194915
Published Online: March 10, 2006
View Article titled, n -Point Asperity Model for Contact Between Nominally Flat Surfaces
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Topics: Statistics, Surface roughness, Separation (Technology), Probability, Geometry
Journal Articles

Nonstick and Stick-Slip Motion of a Coulomb-Damped Belt Drive System Subjected to Multifrequency Excitations

G. Cheng, J. W. Zu, Associate Professor
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Technical Papers
J. Appl. Mech. November 2003, 70(6): 871–884.
https://doi.org/10.1115/1.1629754
Published Online: January 5, 2004
View Article titled, Nonstick and Stick-Slip Motion of a Coulomb-Damped Belt Drive System Subjected to Multifrequency Excitations
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Topics: Belts, Coulombs, Dry friction, Excitation, Pulleys, Torque, Vibration, Stick-slip
Journal Articles

An Improved Transfer Matrix Method for Steady-State Analysis of Nonlinear Rotor-Bearing Systems

J. W. Zu, Z. Ji
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Technical Papers
J. Eng. Gas Turbines Power. April 2002, 124(2): 303–310.
https://doi.org/10.1115/1.1447235
Published Online: March 26, 2002
View Article titled, An Improved Transfer Matrix Method for Steady-State Analysis of Nonlinear Rotor-Bearing Systems
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Topics: Bearings, Rotors, Steady state, Disks
Journal Articles

Nonlinear Vibration of Parametrically Excited Viscoelastic Moving Belts, Part II: Stability Analysis

L. Zhang, J. W. Zu
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Research-Article
J. Appl. Mech. June 1999, 66(2): 403–409.
https://doi.org/10.1115/1.2791063
Published Online: October 25, 1999
View Article titled, Nonlinear Vibration of Parametrically Excited Viscoelastic Moving Belts, Part II: Stability Analysis
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Topics: Belts, Nonlinear vibration, Stability
Journal Articles

Nonlinear Vibration of Parametrically Excited Moving Belts, Part I: Dynamic Response

L. Zhang, J. W. Zu
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Research-Article
J. Appl. Mech. June 1999, 66(2): 396–402.
https://doi.org/10.1115/1.2791062
Published Online: October 25, 1999
View Article titled, Nonlinear Vibration of Parametrically Excited Moving Belts, Part I: Dynamic Response
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Topics: Belts, Dynamic response, Nonlinear vibration
Journal Articles

Free Vibration Analysis of Shafts on Resilient Bearings Using Timoshenko Beam Theory

S. Karunendiran, J. W. Zu
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Technical Briefs
J. Vib. Acoust. April 1999, 121(2): 256–258.
https://doi.org/10.1115/1.2893973
Published Online: April 1, 1999
View Article titled, Free Vibration Analysis of Shafts on Resilient Bearings Using Timoshenko Beam Theory
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Topics: Bearings, Free vibrations, Timoshenko beam theory, Eigenvalues, Mode shapes
Journal Articles

Dynamic Response of a Coupled Spinning Timoshenko Shaft System

E. Wong, J. W. Zu
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. January 1999, 121(1): 110–113.
https://doi.org/10.1115/1.2893936
Published Online: January 1, 1999
View Article titled, Dynamic Response of a Coupled Spinning Timoshenko Shaft System
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Topics: Dynamic response, Spin (Aerodynamics), Spinning (Textile), Differential equations, Computer simulation, Partial differential equations, Time-varying systems, Torsion, Vibration
Journal Articles

Steady-State Response of Continuous Nonlinear Rotor-Bearing Systems Using Analytical Approach

J. W. Zu, Z. Y. Ji
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. October 1998, 120(4): 751–758.
https://doi.org/10.1115/1.2818463
Published Online: October 1, 1998
View Article titled, Steady-State Response of Continuous Nonlinear Rotor-Bearing Systems Using Analytical Approach
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Topics: Bearings, Rotors, Steady state, Vibration, Distributed parameter systems, Modeling, Timoshenko beam theory
Journal Articles

Natural Frequencies and Normal Modes for Externally Damped Spinning Timoshenko Beams With General Boundary Conditions

J. W. Zu, J. Melanson
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Brief Notes
J. Appl. Mech. September 1998, 65(3): 770–772.
https://doi.org/10.1115/1.2789123
Published Online: September 1, 1998
View Article titled, Natural Frequencies and Normal Modes for Externally Damped Spinning Timoshenko Beams With General Boundary Conditions
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Topics: Boundary-value problems, Spin (Aerodynamics), Spinning (Textile), Computer simulation, Damping, Mode shapes, Vibration analysis
Journal Articles

Free Vibration and Stability Analysis of Internally Damped Rotating Shafts With General Boundary Conditions

J. Melanson, J. W. Zu
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. July 1998, 120(3): 776–783.
https://doi.org/10.1115/1.2893897
Published Online: July 1, 1998
View Article titled, Free Vibration and Stability Analysis of Internally Damped Rotating Shafts With General Boundary Conditions
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Topics: Boundary-value problems, Free vibrations, Stability, Damping, Computer simulation, Equations of motion, Rotors, Timoshenko beam theory, Vibration analysis
Journal Articles

Modeling of Flexible Robot-Payload Systems Through Component Synthesis

T. Zhou,, J. W. Zu, and, A. A. Goldenberg
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Technical Briefs
J. Dyn. Sys., Meas., Control. June 2000, 122(2): 381–386.
https://doi.org/10.1115/1.482477
Published Online: January 12, 1998
View Article titled, Modeling of Flexible Robot-Payload Systems Through Component Synthesis
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Topics: Modeling, Robots