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Journal Articles

Responses of a Strongly Forced Mathieu Equation—Part 1: Cyclic Loading

Venkatanarayanan Ramakrishnan, Brian F. Feeny
Journal: Journal of Vibration and Acoustics
Article Type: Research Papers
J. Vib. Acoust. June 2023, 145(3): 031010.
Paper No: VIB-21-1477
DOI: https://doi.org/10.1115/1.4056906
Published Online: March 2, 2023
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Topics: Resonance, Excitation, Steady state
Journal Articles

Responses of a Strongly Forced Mathieu Equation—Part 2: Constant Loading

Venkatanarayanan Ramakrishnan, Brian F. Feeny
Journal: Journal of Vibration and Acoustics
Article Type: Research Papers
J. Vib. Acoust. June 2023, 145(3): 031011.
Paper No: VIB-21-1478
DOI: https://doi.org/10.1115/1.4056907
Published Online: March 2, 2023
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Topics: Resonance
Proceedings Papers

Primary Resonance in a Weakly Forced Mathieu Equation With Parametric Damping

Jamal Ardister, Fatemeh Afzali, Brian F. Feeny
Proc. ASME. IDETC-CIE2022, Volume 10: 34th Conference on Mechanical Vibration and Sound (VIB), V010T10A025, August 14–17, 2022
Paper No: DETC2022-91440
DOI: https://doi.org/10.1115/DETC2022-91440
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Topics: Damping, Resonance, Excitation, Stiffness, Blades, Computer simulation, Silencers, Vibration, Wind turbines
Journal Articles

Primary Parametric Amplification in a Weakly Forced Mathieu Equation

Venkatanarayanan Ramakrishnan, Brian F. Feeny
Journal: Journal of Vibration and Acoustics
Article Type: Research Papers
J. Vib. Acoust. October 2022, 144(5): 051006.
Paper No: VIB-21-1411
DOI: https://doi.org/10.1115/1.4053635
Published Online: May 4, 2022
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Topics: Excitation, Resonance
Journal Articles

Prognostics of Gear Manufacturing Errors for Planetary Gear Systems Based on Power Flow Theory

Zhaobin Zhan, Hui Liu, Brian F. Feeny, Zhen Wang, Yunkun Xie
Journal: Journal of Vibration and Acoustics
Article Type: Research Papers
J. Vib. Acoust. August 2022, 144(4): 041010.
Paper No: VIB-21-1160
DOI: https://doi.org/10.1115/1.4053630
Published Online: March 7, 2022
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Topics: Errors, Flow (Dynamics), Gears, Manufacturing, Parameter estimation, Planetary gears, Vibration, Sun gears
Journal Articles

The Effects of Gravity on the Response of Centrifugal Pendulum Vibration Absorbers

Darryl Tchokogoué, Ming Mu, Brian F. Feeny, Bruce K. Geist, Steven W. Shaw
Journal: Journal of Vibration and Acoustics
Article Type: Research Papers
J. Vib. Acoust. December 2021, 143(6): 061011.
Paper No: VIB-20-1497
DOI: https://doi.org/10.1115/1.4051030
Published Online: May 25, 2021
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Topics: Gravity (Force), Resonance, Rotors, Steady state, Torque, Excitation, Engines, Pendulums
Proceedings Papers

Twinkling Phenomena in Snap-Through Oscillators

Brian F. Feeny, Alejandro R. Diaz
Proc. ASME. IDETC-CIE2001, Volume 6C: 18th Biennial Conference on Mechanical Vibration and Noise, 2393-2398, September 9–12, 2001
Paper No: DETC2001/VIB-21584
DOI: https://doi.org/10.1115/DETC2001/VIB-21584
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Topics: Bifurcation, Chain, Equilibrium (Physics), Stiffness, Transients (Dynamics)
Journal Articles

A Floquet-Based Analysis of Parametric Excitation Through the Damping Coefficient

Fatemeh Afzali, Gizem D. Acar, Brian F. Feeny
Journal: Journal of Vibration and Acoustics
Article Type: Research Papers
J. Vib. Acoust. August 2021, 143(4): 041003.
Paper No: VIB-20-1038
DOI: https://doi.org/10.1115/1.4048392
Published Online: November 10, 2020
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Topics: Damping, Excitation, Stability
Proceedings Papers

Parametric Stiffness in Large-Scale Wind-Turbine Blades and the Effects on Resonance and Speed Locking

Ayse Sapmaz, Brian F. Feeny
Proc. ASME. IDETC-CIE2020, Volume 7: 32nd Conference on Mechanical Vibration and Noise (VIB), V007T07A025, August 17–19, 2020
Paper No: DETC2020-22338
DOI: https://doi.org/10.1115/DETC2020-22338
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Topics: Blades, Resonance, Stiffness, Wind turbines, Dynamics (Mechanics), Rotation
Proceedings Papers

Response Characteristics of Systems With Parametric Excitation Through Damping and Stiffness

Fatemeh Afzali, Brian F. Feeny
Proc. ASME. IDETC-CIE2020, Volume 7: 32nd Conference on Mechanical Vibration and Noise (VIB), V007T07A031, August 17–19, 2020
Paper No: DETC2020-22457
DOI: https://doi.org/10.1115/DETC2020-22457
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Topics: Damping, Excitation, Stiffness, Fourier series, Stability
Proceedings Papers

Parametric Stiffness in Large-Scale Wind-Turbine Blades and the Effects on Resonance and Speed Locking

Ayse Sapmaz, Brian F. Feeny
Proc. ASME. IDETC-CIE2020, Volume 7: 32nd Conference on Mechanical Vibration and Noise (VIB), V007T07A027, August 17–19, 2020
Paper No: DETC2020-22717
DOI: https://doi.org/10.1115/DETC2020-22717
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Topics: Blades, Resonance, Stiffness, Wind turbines, Dynamics (Mechanics), Rotation
Journal Articles

Parametric Resonances of a Three-Blade-Rotor System With Reference to Wind Turbines

Gizem D. Acar, Mustafa A. Acar, Brian F. Feeny
Journal: Journal of Vibration and Acoustics
Article Type: Research Papers
J. Vib. Acoust. April 2020, 142(2): 021013.
Paper No: VIB-19-1290
DOI: https://doi.org/10.1115/1.4045773
Published Online: January 24, 2020
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Topics: Blades, Resonance, Rotors, Excitation, Wind turbines
Proceedings Papers

Numerical Study of Superharmonic Resonances in a Mistuned Horizontal-Axis Wind-Turbine Blade-Rotor Set

Ayse Sapmaz, Gizem D. Acar, Brian F. Feeny
Proc. ASME. IDETC-CIE2019, Volume 8: 31st Conference on Mechanical Vibration and Noise, V008T10A050, August 18–21, 2019
Paper No: DETC2019-98010
DOI: https://doi.org/10.1115/DETC2019-98010
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Topics: Blades, Resonance, Rotors, Wind turbines, Aerodynamics, Computer simulation, Damping, Dynamics (Mechanics), Excitation, Gravity (Force)
Proceedings Papers

Second-Order Perturbation Analysis of In-Plane Blade-Hub Dynamics of Horizontal-Axis Wind Turbines

Ayse Sapmaz, Brian F. Feeny
Proc. ASME. IDETC-CIE2018, Volume 8: 30th Conference on Mechanical Vibration and Noise, V008T10A027, August 26–29, 2018
Paper No: DETC2018-86203
DOI: https://doi.org/10.1115/DETC2018-86203
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Topics: Blades, Dynamics (Mechanics), Horizontal axis wind turbines, Resonance, Rotors, Aerodynamics, Approximation, Centrifugal force, Dynamic response, Wind turbines
Proceedings Papers

Response Characteristics of Systems With Two-Harmonic Parametric Excitation

Fatemeh Afzali, Gizem D. Acar, Brian F. Feeny
Proc. ASME. IDETC-CIE2018, Volume 6: 14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V006T09A048, August 26–29, 2018
Paper No: DETC2018-86140
DOI: https://doi.org/10.1115/DETC2018-86140
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Topics: Excitation, Damping, Fourier series, Stability
Journal Articles

Approximate Floquet Analysis of Parametrically Excited Multi-Degree-of-Freedom Systems With Application to Wind Turbines

Gizem D. Acar, Brian F. Feeny
Journal: Journal of Vibration and Acoustics
Article Type: Research-Article
J. Vib. Acoust. February 2019, 141(1): 011004.
Paper No: VIB-18-1107
DOI: https://doi.org/10.1115/1.4040522
Published Online: July 24, 2018
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Topics: Blades, Stability, Stiffness, Wind turbines, Eigenvalues, Excitation, Horizontal axis wind turbines, Springs, Gravity (Force), Equations of motion
Proceedings Papers

Analysis of the Periodic Damping Coefficient Equation Based on Floquet Theory

Fatemeh Afzali, Gizem D. Acar, Brian F. Feeny
Proc. ASME. IDETC-CIE2017, Volume 8: 29th Conference on Mechanical Vibration and Noise, V008T12A050, August 6–9, 2017
Paper No: DETC2017-68450
DOI: https://doi.org/10.1115/DETC2017-68450
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Topics: Damping, Stability, Differential equations
Journal Articles

Experimental Study on Complex Modes of an End-Damped Continuous Beam

Xing Xing, Brian F. Feeny
Journal: Journal of Vibration and Acoustics
Article Type: Research-Article
J. Vib. Acoust. December 2017, 139(6): 061014.
Paper No: VIB-16-1414
DOI: https://doi.org/10.1115/1.4037301
Published Online: August 16, 2017
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Topics: Dampers, Damping, Eddies (Fluid dynamics), Eigenvalues
Proceedings Papers

In-Plane Blade-Hub Dynamics in Horizontal-Axis Wind-Turbines

Gizem Acar, Mustafa A. Acar, Brian F. Feeny
Proc. ASME. IDETC-CIE2016, Volume 8: 28th Conference on Mechanical Vibration and Noise, V008T10A046, August 21–24, 2016
Paper No: DETC2016-60344
DOI: https://doi.org/10.1115/DETC2016-60344
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Topics: Blades, Dynamics (Mechanics), Wind turbines, Rotors, Gravity (Force), Inertia (Mechanics), Resonance, Aerodynamics, Excitation, Fluid-dynamic forces
Proceedings Papers

Vibration Analysis of Vertical-Axis Wind-Turbine Blades

Fatemeh Afzali, Onur Kapucu, Brian F. Feeny
Proc. ASME. IDETC-CIE2016, Volume 8: 28th Conference on Mechanical Vibration and Noise, V008T10A047, August 21–24, 2016
Paper No: DETC2016-60374
DOI: https://doi.org/10.1115/DETC2016-60374
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Topics: Blades, Vibration analysis, Wind turbines, Airfoils, Deformation, Nonlinear equations, Rotors, Stress, Vibration