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Khaled E. Zaazaa
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Proceedings Papers

A Study of the Lateral Stability of Railroad Vehicles Using a Nonlinear Constrained Multibody Formulation

Davide Valtorta, Khaled E. Zaazaa, Ahmed A. Shabana, Jalil R. Sany
Proc. ASME. IMECE2001, Rail Transportation, 35-47, November 11–16, 2001
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2001/RTD-25704
https://doi.org/10.1115/IMECE2001/RTD-25704
View Paper titled, A Study of the Lateral Stability of Railroad Vehicles Using a Nonlinear Constrained Multibody Formulation
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Topics: Railroads, Stability, Vehicles, Rails, Wheels, Eigenvalues, Locomotives, Stiffness, Wheelsets
Journal Articles

Railroad Vehicle Dynamics—A Roadmap to High Speed Trains

José L. Escalona, Tae-Won Park, Khaled E. Zaazaa
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Guest Editorial
J. Comput. Nonlinear Dynam. October 2012, 7(4): 040301.
Published Online: August 10, 2012
View Article titled, Railroad Vehicle Dynamics—A Roadmap to High Speed Trains
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Topics: Railroads, Trains, Vehicle dynamics, Railway vehicles
Proceedings Papers

Development of the Finite Segment Method for Modeling Railroad Track Structures

Martin B. Hamper, Khaled E. Zaazaa, Ahmed A. Shabana
Proc. ASME. JRC2011, 2011 Joint Rail Conference, 117-128, March 16–18, 2011
Publisher: American Society of Mechanical Engineers
Paper No: JRC2011-56099
https://doi.org/10.1115/JRC2011-56099
View Paper titled, Development of the Finite Segment Method for Modeling Railroad Track Structures
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Topics: Modeling, Railroads, Rails, Geometry, Equations of motion, Wheels, Vehicles, Algorithms, Computer software, Creep
Proceedings Papers

Accurate Geometric Description of Spirals in Railroad Vehicle Dynamic Simulations

Brian Marquis, Khaled E. Zaazaa, Tariq Z. Sinokrot, Ahmed A. Shabana
Proc. ASME. IDETC-CIE2009, Volume 4: 7th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B and C, 1843-1851, August 30–September 2, 2009
Publisher: American Society of Mechanical Engineers
Paper No: DETC2009-86237
https://doi.org/10.1115/DETC2009-86237
View Paper titled, Accurate Geometric Description of Spirals in Railroad Vehicle Dynamic Simulations
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Topics: Engineering simulation, Railroads, Simulation, Vehicles, Rails, Geometry, Creep, Errors, Yaw, Wheels
Proceedings Papers

Review of Joost Kalker’s Wheel-Rail Contact Theories and Their Implementation in Multibody Codes

Khaled E. Zaazaa, A. L. Schwab
Proc. ASME. IDETC-CIE2009, Volume 4: 7th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B and C, 1889-1900, August 30–September 2, 2009
Publisher: American Society of Mechanical Engineers
Paper No: DETC2009-87655
https://doi.org/10.1115/DETC2009-87655
View Paper titled, Review of Joost Kalker’s Wheel-Rail Contact Theories and Their Implementation in Multibody Codes
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Topics: Rails, Wheels, Errors, Particle spin, Rolling contact, Rotation, Spin (Aerodynamics), Strips
Journal Articles

Accurate Representation of the Rail Geometry for Multibody System Applications

Brian Marquis, Khaled E. Zaazaa, Tariq Sinokrot, Ahmed A. Shabana
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research Papers
J. Comput. Nonlinear Dynam. January 2010, 5(1): 011003.
https://doi.org/10.1115/1.4000254
Published Online: November 12, 2009
View Article titled, Accurate Representation of the Rail Geometry for Multibody System Applications
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Topics: Geometry, Rails, Railroads
Proceedings Papers

A Nonlinear Rail Vehicle Dynamics Computer Program SAMS/Rail: Part 2—Preliminary Validation of BETA Release

Brian Marquis, Erik Curtis, Khaled E. Zaazaa, Brian Whitten, Magdy El-Sibaie, Ali Tajaddini
Proc. ASME. JRC2009, 2009 Joint Rail Conference, 145-154, March 4–5, 2009
Publisher: American Society of Mechanical Engineers
Paper No: JRC2009-63044
https://doi.org/10.1115/JRC2009-63044
View Paper titled, A Nonlinear Rail Vehicle Dynamics Computer Program SAMS/Rail: Part 2—Preliminary Validation of BETA Release
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Topics: Computer software, Dynamics (Mechanics), Rail vehicles, Rails, Railroads, Vehicles, Simulation, Modeling, Multibody systems, Performance evaluation
Proceedings Papers

A Nonlinear Rail Vehicle Dynamics Computer Program SAMS/Rail: Part 1—Theory and Formulations

Khaled E. Zaazaa, Brian Whitten, Brian Marquis, Erik Curtis, Magdy El-Sibaie, Ali Tajaddini, Ahmed A. Shabana
Proc. ASME. JRC2009, 2009 Joint Rail Conference, 155-164, March 4–5, 2009
Publisher: American Society of Mechanical Engineers
Paper No: JRC2009-63045
https://doi.org/10.1115/JRC2009-63045
View Paper titled, A Nonlinear Rail Vehicle Dynamics Computer Program SAMS/Rail: Part 1—Theory and Formulations
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Topics: Computer software, Dynamics (Mechanics), Rail vehicles, Rails, Wheels, Simulation, Railroads, Industrial research, Multibody systems, Separation (Technology)
Proceedings Papers

A Nonlinear Rail Vehicle Dynamics Computer Program SAMS/Rail: Part 3—Applications to Predict Railroad Vehicle-Track Interaction Performance

Khaled E. Zaazaa, Timothy P. Martin, Brian Whitten, Brian Marquis, Erik Curtis, Magdy El-Sibaie, Ali Tajaddini
Proc. ASME. JRC2009, 2009 Joint Rail Conference, 165-173, March 4–5, 2009
Publisher: American Society of Mechanical Engineers
Paper No: JRC2009-63046
https://doi.org/10.1115/JRC2009-63046
View Paper titled, A Nonlinear Rail Vehicle Dynamics Computer Program SAMS/Rail: Part 3—Applications to Predict Railroad Vehicle-Track Interaction Performance
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Topics: Computer software, Dynamics (Mechanics), Rail vehicles, Railroads, Rails, Vehicles, Artificial neural networks, Wheels, Simulation, Dynamic response
Proceedings Papers

Effect of Independently Rotating Wheels on the Dynamic Performance of Railroad Vehicles

Khaled E. Zaazaa, Brian Whitten
Proc. ASME. IMECE2007, Volume 16: Transportation Systems, 467-477, November 11–15, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2007-43645
https://doi.org/10.1115/IMECE2007-43645
View Paper titled, Effect of Independently Rotating Wheels on the Dynamic Performance of Railroad Vehicles
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Topics: Railroads, Vehicles, Wheels, Wheelsets, Rails, Design, Equations of motion, Flanges, Modeling, Rotation
Proceedings Papers

Using a Multibody Dynamic Simulation Code With Neural Network Technology to Predict Railroad Vehicle-Track Interaction Performance in Real Time

Timothy P. Martin, Khaled E. Zaazaa, Brian Whitten, Ali Tajaddini
Proc. ASME. IDETC-CIE2007, Volume 5: 6th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B, and C, 1881-1891, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-34859
https://doi.org/10.1115/DETC2007-34859
View Paper titled, Using a Multibody Dynamic Simulation Code With Neural Network Technology to Predict Railroad Vehicle-Track Interaction Performance in Real Time
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Topics: Artificial neural networks, Railroads, Simulation, Vehicles, Geometry, Nonlinear equations, Approximation, Computation, Instrumentation, Rails
Proceedings Papers

A Study of the Effect of m and n Coefficients of the Hertzian Contact Theory on Railroad Vehicle Dynamics

J. P. Pascal, Khaled E. Zaazaa
Proc. ASME. IDETC-CIE2007, Volume 5: 6th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B, and C, 1893-1901, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-34972
https://doi.org/10.1115/DETC2007-34972
View Paper titled, A Study of the Effect of m and n Coefficients of the Hertzian Contact Theory on Railroad Vehicle Dynamics
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Topics: Railroads, Vehicle dynamics, Rails, Wheels, Vehicles, Shapes, Contact mechanics, Deformation, Dimensions, Interpolation
Proceedings Papers

A Technique for Validating a Multibody Wheel/Rail Contact Algorithm

Jose´ L. Escalona, Manuel Gonza´lez, Khaled E. Zaazaa, Ahmed A. Shabana
Proc. ASME. IDETC-CIE2003, Volume 5: 19th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 505-518, September 2–6, 2003
Publisher: American Society of Mechanical Engineers
Paper No: DETC2003/VIB-48358
https://doi.org/10.1115/DETC2003/VIB-48358
View Paper titled, A Technique for Validating a Multibody Wheel/Rail Contact Algorithm
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Topics: Algorithms, Rails, Wheels, Dynamics (Mechanics), Steady state, Wheelsets, Centrifugal force, Degrees of freedom, Flanges, Gravity (Force)
Proceedings Papers

A Study of the Wheel Geometry Effect on the Dynamic Behavior of Railroad Vehicles

Ahmed A. Shabana, Mahmoud Tobaa, Khaled E. Zaazaa
Proc. ASME. IDETC-CIE2005, Volume 6: 5th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B, and C, 2197-2208, September 24–28, 2005
Publisher: American Society of Mechanical Engineers
Paper No: DETC2005-85046
https://doi.org/10.1115/DETC2005-85046
View Paper titled, A Study of the Wheel Geometry Effect on the Dynamic Behavior of Railroad Vehicles
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Topics: Geometry, Railroads, Vehicles, Wheels, Rails, Stability, Nonlinear dynamics, Wheelsets
Proceedings Papers

Modeling Two-Point Wheel/Rail Contacts Using Constraint and Elastic-Force Approaches

Ahmed A. Shabana, Khaled E. Zaazaa, Jose´ L. Escalona, Jalil R. Sany
Proc. ASME. IMECE2002, Rail Transportation, 35-50, November 17–22, 2002
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2002-39601
https://doi.org/10.1115/IMECE2002-39601
View Paper titled, Modeling Two-Point Wheel/Rail Contacts Using Constraint and Elastic-Force Approaches
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Topics: Modeling, Rails, Wheels, Contact mechanics, Degrees of freedom, Differential equations, Creep, Damping, Dynamics (Mechanics), Equations of motion
Journal Articles

Effect of the Wheel Geometric Design on the Nonlinear Dynamics of Railroad Vehicles

Ahmed A. Shabana, Mahmoud Tobaa, Khaled E. Zaazaa
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. September 2006, 128(5): 1130–1140.
https://doi.org/10.1115/1.2214739
Published Online: October 20, 2005
View Article titled, Effect of the Wheel Geometric Design on the Nonlinear Dynamics of Railroad Vehicles
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Topics: Rails, Vehicles, Wheels, Railroads, Geometry, Wheelsets