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Brian F. Feeny
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Journal Articles

Primary Resonance in a Weakly Forced Oscillator With Both Parametric Damping and Stiffness

Jamal Ardister, Fatemeh Afzali, Brian F. Feeny
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. February 2024, 146(1): 011003.
Paper No: VIB-23-1252
https://doi.org/10.1115/1.4065037
Published Online: April 4, 2024
View Article titled, Primary Resonance in a Weakly Forced Oscillator With Both Parametric Damping and Stiffness
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Topics: Damping, Resonance, Stiffness, Excitation
Journal Articles

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

Venkatanarayanan Ramakrishnan, Brian F. Feeny
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. June 2023, 145(3): 031010.
Paper No: VIB-21-1477
https://doi.org/10.1115/1.4056906
Published Online: March 2, 2023
View Article titled, Responses of a Strongly Forced Mathieu Equation—Part 1: Cyclic Loading
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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
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. June 2023, 145(3): 031011.
Paper No: VIB-21-1478
https://doi.org/10.1115/1.4056907
Published Online: March 2, 2023
View Article titled, Responses of a Strongly Forced Mathieu Equation—Part 2: Constant Loading
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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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2022-91440
https://doi.org/10.1115/DETC2022-91440
View Paper titled, Primary Resonance in a Weakly Forced Mathieu Equation With Parametric Damping
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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
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. October 2022, 144(5): 051006.
Paper No: VIB-21-1411
https://doi.org/10.1115/1.4053635
Published Online: May 4, 2022
View Article titled, Primary Parametric Amplification in a Weakly Forced Mathieu Equation
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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
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. August 2022, 144(4): 041010.
Paper No: VIB-21-1160
https://doi.org/10.1115/1.4053630
Published Online: March 7, 2022
View Article titled, Prognostics of Gear Manufacturing Errors for Planetary Gear Systems Based on Power Flow Theory
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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
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. December 2021, 143(6): 061011.
Paper No: VIB-20-1497
https://doi.org/10.1115/1.4051030
Published Online: May 25, 2021
View Article titled, The Effects of Gravity on the Response of Centrifugal Pendulum Vibration Absorbers
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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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2001/VIB-21584
https://doi.org/10.1115/DETC2001/VIB-21584
View Paper titled, Twinkling Phenomena in Snap-Through Oscillators
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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
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. August 2021, 143(4): 041003.
Paper No: VIB-20-1038
https://doi.org/10.1115/1.4048392
Published Online: November 10, 2020
View Article titled, A Floquet-Based Analysis of Parametric Excitation Through the Damping Coefficient
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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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2020-22338
https://doi.org/10.1115/DETC2020-22338
View Paper titled, Parametric Stiffness in Large-Scale Wind-Turbine Blades and the Effects on Resonance and Speed Locking
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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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2020-22457
https://doi.org/10.1115/DETC2020-22457
View Paper titled, Response Characteristics of Systems With Parametric Excitation Through Damping and Stiffness
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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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2020-22717
https://doi.org/10.1115/DETC2020-22717
View Paper titled, Parametric Stiffness in Large-Scale Wind-Turbine Blades and the Effects on Resonance and Speed Locking
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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
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. April 2020, 142(2): 021013.
Paper No: VIB-19-1290
https://doi.org/10.1115/1.4045773
Published Online: January 24, 2020
View Article titled, Parametric Resonances of a Three-Blade-Rotor System With Reference to Wind Turbines
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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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-98010
https://doi.org/10.1115/DETC2019-98010
View Paper titled, Numerical Study of Superharmonic Resonances in a Mistuned Horizontal-Axis Wind-Turbine Blade-Rotor Set
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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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2018-86203
https://doi.org/10.1115/DETC2018-86203
View Paper titled, Second-Order Perturbation Analysis of In-Plane Blade-Hub Dynamics of Horizontal-Axis Wind Turbines
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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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2018-86140
https://doi.org/10.1115/DETC2018-86140
View Paper titled, Response Characteristics of Systems With Two-Harmonic Parametric Excitation
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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
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. February 2019, 141(1): 011004.
Paper No: VIB-18-1107
https://doi.org/10.1115/1.4040522
Published Online: July 24, 2018
View Article titled, Approximate Floquet Analysis of Parametrically Excited Multi-Degree-of-Freedom Systems With Application to Wind Turbines
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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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2017-68450
https://doi.org/10.1115/DETC2017-68450
View Paper titled, Analysis of the Periodic Damping Coefficient Equation Based on Floquet Theory
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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
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. December 2017, 139(6): 061014.
Paper No: VIB-16-1414
https://doi.org/10.1115/1.4037301
Published Online: August 16, 2017
View Article titled, Experimental Study on Complex Modes of an End-Damped Continuous Beam
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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
Publisher: American Society of Mechanical Engineers
Paper No: DETC2016-60344
https://doi.org/10.1115/DETC2016-60344
View Paper titled, In-Plane Blade-Hub Dynamics in Horizontal-Axis Wind-Turbines
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Topics: Blades, Dynamics (Mechanics), Wind turbines, Rotors, Gravity (Force), Inertia (Mechanics), Resonance, Aerodynamics, Excitation, Fluid-dynamic forces