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Parviz E. Nikravesh
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Proceedings Papers

Hertz Contact Force Model With Permanent Indentation in Impact Analysis of Solids

Hamid M. Lankarani, Parviz E. Nikravesh
Proc. ASME. DETC92, 18th Design Automation Conference: Volume 2 — Geometric Modeling, Mechanisms, and Mechanical Systems Analysis, 391-395, September 13–16, 1992
Publisher: American Society of Mechanical Engineers
Paper No: DETC1992-0189
https://doi.org/10.1115/DETC1992-0189
View Paper titled, Hertz Contact Force Model With Permanent Indentation in Impact Analysis of Solids
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Topics: Solids, Particulate matter, Accounting, Energy dissipation, Equations of motion, Momentum, Plasticity
Proceedings Papers

Tilt-Wing Rotorcraft Dynamic Analysis Using Multibody Formulation

Patrick J. O’Heron, Parviz E. Nikravesh, Ara Arabyan, Donald L. Kunz
Proc. ASME. DETC92, 18th Design Automation Conference: Volume 2 — Geometric Modeling, Mechanisms, and Mechanical Systems Analysis, 397-402, September 13–16, 1992
Publisher: American Society of Mechanical Engineers
Paper No: DETC1992-0190
https://doi.org/10.1115/DETC1992-0190
View Paper titled, Tilt-Wing Rotorcraft Dynamic Analysis Using Multibody Formulation
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Topics: Dynamic analysis, Wings, Flight, Aerodynamics, Wakes, Blades, Control systems, Dynamics (Mechanics), Equations of motion, Inflow
Proceedings Papers

Prediction of Modal Characteristics due to Design Change

Tong Y. Yi, Parviz E. Nikravesh
Proc. ASME. DETC97, Volume 1A: 16th Biennial Conference on Mechanical Vibration and Noise, V01AT06A029, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/VIB-4190
https://doi.org/10.1115/DETC97/VIB-4190
View Paper titled, Prediction of Modal Characteristics due to Design Change
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Topics: Design, Finite element model, Stiffness, Vibration
Proceedings Papers

Identification of Free-Free Modes From Constrained Vibration Data for Flexible Multibody Models

Tong Y. Yi, Parviz E. Nikravesh
Proc. ASME. DETC99, Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 111-120, September 12–16, 1999
Publisher: American Society of Mechanical Engineers
Paper No: DETC99/VIB-8231
https://doi.org/10.1115/DETC99/VIB-8231
View Paper titled, Identification of Free-Free Modes From Constrained Vibration Data for Flexible Multibody Models
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Topics: Vibration, Boundary-value problems, Finite element model, Multibody systems, Degrees of freedom, Flexible body dynamics, Springs, Vibration measurement
Journal Articles

Characterization of the Optimal Damping Coefficient in the Continuous Contact Model

Mohammad Poursina, Parviz E. Nikravesh
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. September 2020, 15(9): 091005.
Paper No: CND-19-1456
https://doi.org/10.1115/1.4047136
Published Online: July 16, 2020
View Article titled, Characterization of the Optimal Damping Coefficient in the Continuous Contact Model
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Topics: Damping, Separation (Technology), Optimization, Dampers
Proceedings Papers

Characterization of the Damping Coefficient in the Continuous Contact Model

Mohammad Poursina, Parviz E. Nikravesh
Proc. ASME. IDETC-CIE2019, Volume 6: 15th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V006T09A023, August 18–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-97476
https://doi.org/10.1115/DETC2019-97476
View Paper titled, Characterization of the Damping Coefficient in the Continuous Contact Model
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Topics: Damping, Deformation, Separation (Technology), Dampers, Elastic constants, Optimization, Springs
Proceedings Papers

Kinematics and Dynamics Comparison Between Three Parallel Robots for Lower Extremity Rehabilitation

Arman Dabiri, Sahand Sabet, Mohammad Poursina, Parviz E. Nikravesh, David G. Armstrong
Proc. ASME. IDETC-CIE2017, Volume 6: 13th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V006T10A021, August 6–9, 2017
Publisher: American Society of Mechanical Engineers
Paper No: DETC2017-68357
https://doi.org/10.1115/DETC2017-68357
View Paper titled, Kinematics and Dynamics Comparison Between Three Parallel Robots for Lower Extremity Rehabilitation
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Topics: Dynamics (Mechanics), Kinematics, Robots, Design, Diabetes, Actuators, Genetic algorithms, Manipulators, Monte Carlo methods, Patient treatment
Proceedings Papers

Eliminating Boundary Nodes in Substructuring of Large Structures

Omid Kazemi, Parviz E. Nikravesh
Proc. ASME. IDETC-CIE2014, Volume 6: 10th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V006T10A019, August 17–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: DETC2014-35550
https://doi.org/10.1115/DETC2014-35550
View Paper titled, Eliminating Boundary Nodes in Substructuring of Large Structures
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Topics: Degrees of freedom
Proceedings Papers

Numerical Integration Scheme Using Singular Perturbation Method

Gibin Gil, Ricardo G. Sanfelice, Parviz E. Nikravesh
Proc. ASME. IDETC-CIE2013, Volume 7A: 9th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V07AT10A039, August 4–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: DETC2013-13330
https://doi.org/10.1115/DETC2013-13330
View Paper titled, Numerical Integration Scheme Using Singular Perturbation Method
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Topics: Computation, Degrees of freedom, Dynamic systems, Equations of motion, Multibody systems, Stability
Proceedings Papers

Comparison of Different Methods to Control Constraints Violation in Forward Multibody Dynamics

Paulo Flores, Parviz E. Nikravesh
Proc. ASME. IDETC-CIE2013, Volume 7A: 9th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V07AT10A028, August 4–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: DETC2013-12591
https://doi.org/10.1115/DETC2013-12591
View Paper titled, Comparison of Different Methods to Control Constraints Violation in Forward Multibody Dynamics
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Topics: Multibody dynamics
Proceedings Papers

Simulation Based Optimal Tolerancing for Multibody Systems

Henry Arenbeck, Samy Missoum, Anirban Basudhar, Parviz E. Nikravesh
Proc. ASME. IDETC-CIE2007, Volume 4: ASME/IEEE International Conference on Mechatronic and Embedded Systems and Applications and the 19th Reliability, Stress Analysis, and Failure Prevention Conference, 483-495, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-35706
https://doi.org/10.1115/DETC2007-35706
View Paper titled, Simulation Based Optimal Tolerancing for Multibody Systems
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Topics: Multibody systems, Simulation, Design, Failure, Probability, Support vector machines, Experimental design, Manufacturing, Optimization, Reliability-based optimization
Proceedings Papers

A Transient Tire Model for Uneven Road Surface

Seongho Kim, Parviz E. Nikravesh, Gwanghun Gim
Proc. ASME. IDETC-CIE2007, Volume 5: 6th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B, and C, 1941-1946, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-34414
https://doi.org/10.1115/DETC2007-34414
View Paper titled, A Transient Tire Model for Uneven Road Surface
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Topics: Pavement, Tires, Transients (Dynamics), Pressure, Vibration, Algorithms
Proceedings Papers

Comparison of Reduction Methods for Deformable Multibody Dynamics

Parviz E. Nikravesh, Yi-Shih Lin
Proc. ASME. IDETC-CIE2005, Volume 6: 5th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B, and C, 1303-1310, September 24–28, 2005
Publisher: American Society of Mechanical Engineers
Paper No: DETC2005-84820
https://doi.org/10.1115/DETC2005-84820
View Paper titled, Comparison of Reduction Methods for Deformable Multibody Dynamics
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Topics: Multibody dynamics, Condensation, Boundary-value problems, Equations of motion, Structural analysis
Journal Articles

Extraction of Free-Free Modes from Constrained Vibration Data for Flexible Multibody Models

Tong Y. Yi,, Sr., Technical Specialist,, Parviz E. Nikravesh, Professor,
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. July 2001, 123(3): 383–389.
https://doi.org/10.1115/1.1375814
Published Online: February 1, 2001
View Article titled, Extraction of Free-Free Modes from Constrained Vibration Data for Flexible Multibody Models
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Topics: Finite element model, Springs, Stiffness, Vibration, Boundary-value problems, Degrees of freedom