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Journal Articles

Modal Analysis for Localization of Harmonic Oscillations in Nonlinear Oscillator Arrays

Yuji Harata, Takashi Ikeda
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. December 2022, 17(12): 121001.
Paper No: CND-22-1069
https://doi.org/10.1115/1.4055430
Published Online: September 26, 2022
View Article titled, Modal Analysis for Localization of Harmonic Oscillations in Nonlinear Oscillator Arrays
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Topics: Frequency response, Modal analysis, Oscillations, Equations of motion
Proceedings Papers

Modal Analysis to Interpret Localization Phenomena in Two Nonlinear Tuned Mass Dampers

Yuji Harata, Takashi Ikeda
Proc. ASME. IDETC-CIE2021, Volume 9: 17th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC), V009T09A041, August 17–19, 2021
Publisher: American Society of Mechanical Engineers
Paper No: DETC2021-69248
https://doi.org/10.1115/DETC2021-69248
View Paper titled, Modal Analysis to Interpret Localization Phenomena in Two Nonlinear Tuned Mass Dampers
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Topics: Dampers, Modal analysis, Oscillations
Proceedings Papers

Modal Analysis to Interpret Localization Phenomena of Harmonic Oscillations in Nonlinear Oscillator Arrays

Yuji Harata, Takashi Ikeda
Proc. ASME. IDETC-CIE2019, Volume 6: 15th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V006T09A050, August 18–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-97780
https://doi.org/10.1115/DETC2019-97780
View Paper titled, Modal Analysis to Interpret Localization Phenomena of Harmonic Oscillations in Nonlinear Oscillator Arrays
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Topics: Modal analysis, Oscillations
Journal Articles

Parametric Instability and Localization of Vibrations in Three-Blade Wind Turbines

Takashi Ikeda, Yuji Harata, Yukio Ishida
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. July 2018, 13(7): 071001.
Paper No: CND-17-1297
https://doi.org/10.1115/1.4039899
Published Online: May 17, 2018
View Article titled, Parametric Instability and Localization of Vibrations in Three-Blade Wind Turbines
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Topics: Blades, Vibration, Wind turbines, Frequency response, Equations of motion, Excitation
Journal Articles

Vibration Control of Horizontally Excited Structures Utilizing Internal Resonance of Liquid Sloshing in Nearly Square Tanks

Takashi Ikeda, Yuji Harata
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. August 2017, 139(4): 041009.
Paper No: VIB-16-1457
https://doi.org/10.1115/1.4036211
Published Online: May 30, 2017
View Article titled, Vibration Control of Horizontally Excited Structures Utilizing Internal Resonance of Liquid Sloshing in Nearly Square Tanks
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Topics: Excitation, Frequency response, Resonance, Sloshing, Vibration, Theoretical analysis, Bifurcation, Equations of motion, Vibration control
Journal Articles

Vibration Control of Two-Degree-of-Freedom Structures Utilizing Sloshing in Nearly Square Tanks

Takashi Ikeda, Yuji Harata, Shota Ninomiya
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. September 2017, 12(5): 051012.
Paper No: CND-16-1367
https://doi.org/10.1115/1.4036481
Published Online: May 4, 2017
View Article titled, Vibration Control of Two-Degree-of-Freedom Structures Utilizing Sloshing in Nearly Square Tanks
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Topics: Bifurcation, Equations of motion, Excitation, Frequency response, Sloshing, Theoretical analysis, Vibration control
Journal Articles

Intrinsic Localized Modes of Principal Parametric Resonances in Pendulum Arrays Subjected to Vertical Excitation

Takashi Ikeda, Yuji Harata, Chongyue Shi, Keisuke Nishimura
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. September 2015, 10(5): 051017.
Paper No: CND-14-1298
https://doi.org/10.1115/1.4030215
Published Online: September 1, 2015
View Article titled, Intrinsic Localized Modes of Principal Parametric Resonances in Pendulum Arrays Subjected to Vertical Excitation
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Topics: Excitation, Frequency response, Pendulums, Resonance, Elastic constants, Bifurcation
Journal Articles

Intrinsic Localized Modes of Harmonic Oscillations in Pendulum Arrays Subjected to Horizontal Excitation

Takashi Ikeda, Yuji Harata, Keisuke Nishimura
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. March 2015, 10(2): 021007.
Paper No: CND-13-1239
https://doi.org/10.1115/1.4028474
Published Online: March 1, 2015
View Article titled, Intrinsic Localized Modes of Harmonic Oscillations in Pendulum Arrays Subjected to Horizontal Excitation
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Topics: Bifurcation, Excitation, Frequency response, Oscillations, Pendulums, Elastic constants, Vibration
Proceedings Papers

Vibration Suppression of Wind Turbine Blades Using Tuned Mass Dampers

Takashi Ikeda, Yuji Harata, Yusuke Sasagawa, Yukio Ishida
Proc. ASME. IDETC-CIE2014, Volume 6: 10th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V006T10A067, August 17–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: DETC2014-34336
https://doi.org/10.1115/DETC2014-34336
View Paper titled, Vibration Suppression of Wind Turbine Blades Using Tuned Mass Dampers
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Topics: Blades, Dampers, Vibration suppression, Wind turbines, Vibration, Wind pressure, Excitation, Frequency response, Passive control, Resonance
Proceedings Papers

Localization Phenomena in Pendulum Arrays Subjected to Vertical Excitation

Takashi Ikeda, Yuji Harata, Chongyue Shi, Keisuke Nishimura
Proc. ASME. IDETC-CIE2014, Volume 6: 10th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V006T10A054, August 17–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: DETC2014-34461
https://doi.org/10.1115/DETC2014-34461
View Paper titled, Localization Phenomena in Pendulum Arrays Subjected to Vertical Excitation
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Topics: Excitation, Pendulums, Bifurcation, Elastic constants, Frequency response, Theoretical analysis, Computer simulation, Resonance, Springs
Proceedings Papers

Intrinsic Localized Modes of Harmonic Oscillations in Pendulum-Arrays Subjected to Horizontal Excitation

Takashi Ikeda, Yuji Harata, Keisuke Nishimura
Proc. ASME. IDETC-CIE2013, Volume 7B: 9th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V07BT10A030, August 4–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: DETC2013-12771
https://doi.org/10.1115/DETC2013-12771
View Paper titled, Intrinsic Localized Modes of Harmonic Oscillations in Pendulum-Arrays Subjected to Horizontal Excitation
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Topics: Excitation, Oscillations, Pendulums, Bifurcation, Elastic constants, Frequency response, Springs, Theoretical analysis, Computer simulation, Steady state
Proceedings Papers

Localization Phenomena of Nonlinear Vibrations in Three-Blade Wind Turbines

Takashi Ikeda, Yuji Harata, Hisashi Takahashi, Yukio Ishida
Proc. ASME. IDETC-CIE2013, Volume 8: 22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise, V008T13A047, August 4–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: DETC2013-12773
https://doi.org/10.1115/DETC2013-12773
View Paper titled, Localization Phenomena of Nonlinear Vibrations in Three-Blade Wind Turbines
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Topics: Blades, Vibration, Wind turbines, Degrees of freedom, Wind pressure, Computer simulation, Excitation, Frequency response, Springs
Proceedings Papers

Unstable Vibrations of a Wind Turbine Tower With Two Blades

Takashi Ikeda, Yuji Harata, Yukio Ishida
Proc. ASME. IDETC-CIE2012, Volume 1: 24th Conference on Mechanical Vibration and Noise, Parts A and B, 757-766, August 12–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: DETC2012-71551
https://doi.org/10.1115/DETC2012-71551
View Paper titled, Unstable Vibrations of a Wind Turbine Tower With Two Blades
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Topics: Blades, Vibration, Wind turbines, Rotors, Rotational inertia, Computer simulation, Equations of motion, Excitation, Stiffness, Theoretical analysis
Proceedings Papers

Suppression of Period-Doubling Bifurcation in Passive Dynamic Walking With Delayed Feedback Control

Yuji Harata, Koji Iwano, Fumihiko Asano, Takashi Ikeda
Proc. ASME. IDETC-CIE2012, Volume 4: 36th Mechanisms and Robotics Conference, Parts A and B, 1355-1364, August 12–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: DETC2012-70209
https://doi.org/10.1115/DETC2012-70209
View Paper titled, Suppression of Period-Doubling Bifurcation in Passive Dynamic Walking With Delayed Feedback Control
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Topics: Bifurcation, Feedback, Robots, Equations of motion, Simulation results, Torque
Proceedings Papers

Vibration Control of 2DOF Structures Utilizing Sloshing in Square Tanks

Takashi Ikeda, Yuji Harata, Shota Ninomiya
Proc. ASME. IDETC-CIE2012, Volume 1: 24th Conference on Mechanical Vibration and Noise, Parts A and B, 1093-1103, August 12–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: DETC2012-70188
https://doi.org/10.1115/DETC2012-70188
View Paper titled, Vibration Control of 2DOF Structures Utilizing Sloshing in Square Tanks
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Topics: Sloshing, Vibration control, Damping, Equations of motion, Excitation, Bifurcation, Computer simulation, Dampers, Fluid-dynamic forces, Frequency response
Journal Articles

Intrinsic Localized Modes of Harmonic Oscillations in Nonlinear Oscillator Arrays

Takashi Ikeda, Yuji Harata, Keisuke Nishimura
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. October 2013, 8(4): 041009.
Paper No: CND-12-1211
https://doi.org/10.1115/1.4023866
Published Online: March 26, 2013
View Article titled, Intrinsic Localized Modes of Harmonic Oscillations in Nonlinear Oscillator Arrays
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Topics: Bifurcation, Excitation, Frequency response, Oscillations, Springs, Vibration, Steady state, Elastic constants
Journal Articles

Autoparametric Resonances of Elastic Structures Coupled With Two Sloshing Modes in a Square Liquid Tank

Takashi Ikeda, Masaki Takashima, Yuji Harata
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. January 2013, 8(1): 011007.
Paper No: CND-11-1167
https://doi.org/10.1115/1.4006531
Published Online: June 14, 2012
View Article titled, Autoparametric Resonances of Elastic Structures Coupled With Two Sloshing Modes in a Square Liquid Tank
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Topics: Equations of motion, Excitation, Frequency response, Sloshing, Bifurcation, Resonance, Theoretical analysis
Proceedings Papers

Autoparametric Resonances of Elastic Structures Coupled With Two Sloshing Modes in a Square Liquid Tank

Takashi Ikeda, Masaki Takashima, Yuji Harata
Proc. ASME. IDETC-CIE2011, Volume 1: 23rd Biennial Conference on Mechanical Vibration and Noise, Parts A and B, 381-390, August 28–31, 2011
Publisher: American Society of Mechanical Engineers
Paper No: DETC2011-47808
https://doi.org/10.1115/DETC2011-47808
View Paper titled, Autoparametric Resonances of Elastic Structures Coupled With Two Sloshing Modes in a Square Liquid Tank
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Topics: Resonance, Sloshing, Damping, Vibration, Bifurcation, Dampers, Equations of motion, Excitation, Fluids, Frequency response