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Osami Matsushita
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Proceedings Papers

Rotor Stability Evaluation for High Pressure Multi-Stage Pump by Excitation Diagnosis Method

Shichao Peng, Akira Arai, Takaki Fukuchi, Taiju Katayama, Osami Matsushita
Proc. ASME. FEDSM2017, Volume 1A, Symposia: Keynotes; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Fluid Machinery; Industrial and Environmental Applications of Fluid Mechanics; Pumping Machinery, V01AT05A014, July 30–August 3, 2017
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2017-69191
https://doi.org/10.1115/FEDSM2017-69191
View Paper titled, Rotor Stability Evaluation for High Pressure Multi-Stage Pump by Excitation Diagnosis Method
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Topics: Excitation, High pressure (Physics), Pumps, Rotors, Stability, Vibration, Fluids, Bearings, Clearances (Engineering), Machinery
Proceedings Papers

Vibration of Bending-Torsion Coupled Resonance in a Rotor

Hiroyuki Fujiwara, Tadashi Tsuji, Osami Matsushita
Proc. ASME. IDETC-CIE2013, Volume 8: 22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise, V008T13A049, August 4–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: DETC2013-12778
https://doi.org/10.1115/DETC2013-12778
View Paper titled, Vibration of Bending-Torsion Coupled Resonance in a Rotor
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Topics: Resonance, Rotors, Torsion, Vibration, Reactor protection systems, Stability, Computer simulation, Engineering simulation, Simulation
Proceedings Papers

Experimental Study of Torsional-Bending Coupled Vibration of a Rotor System With a Bladed Disk

Takeshi Kudo, Koki Shiohata, Osami Matsushita, Hiroyuki Fujiwara, Akira Okabe, Shigeo Sakurai
Proc. ASME. IDETC-CIE2013, Volume 8: 22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise, V008T13A039, August 4–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: DETC2013-12115
https://doi.org/10.1115/DETC2013-12115
View Paper titled, Experimental Study of Torsional-Bending Coupled Vibration of a Rotor System With a Bladed Disk
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Topics: Disks, Rotors, Vibration, Resonance, Excitation, Torsion, Blades, Servomotors, Steam turbines, Bearings
Proceedings Papers

Reduced Modelling for Turbine Rotor-Blade Coupled Bending Vibration Analysis

Akira Okabe, Takeshi Kudo, Koki Shiohata, Osami Matsushita, Hiroyuki Fujiwara, Hideo Yoda, Shigeo Sakurai
Proc. ASME. GT2011, Volume 6: Structures and Dynamics, Parts A and B, 355-364, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45776
https://doi.org/10.1115/GT2011-45776
View Paper titled, Reduced Modelling for Turbine Rotor-Blade Coupled Bending Vibration Analysis
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Topics: Blades, Modeling, Rotors, Turbines, Vibration analysis, Vibration, Cantilevers, Design, Displacement, Eigenvalues
Journal Articles

Reduced Modeling for Turbine Rotor-Blade Coupled Bending Vibration Analysis

Akira Okabe, Takeshi Kudo, Koki Shiohata, Osami Matsushita, Hiroyuki Fujiwara, Hideo Yoda, Shigeo Sakurai
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. February 2012, 134(2): 022502.
https://doi.org/10.1115/1.4004145
Published Online: December 7, 2011
View Article titled, Reduced Modeling for Turbine Rotor-Blade Coupled Bending Vibration Analysis
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Topics: Blades, Vibration, Modeling
Proceedings Papers

Vibration Diagnosis Featuring Blade-Shaft Coupling Effect of Turbine Model Rotors

Norihisa Anegawa, Hiroyuki Fujiwara, Osami Matsushita
Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 309-318, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-23091
https://doi.org/10.1115/GT2010-23091
View Paper titled, Vibration Diagnosis Featuring Blade-Shaft Coupling Effect of Turbine Model Rotors
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Topics: Blades, Rotors, Turbines, Vibration, Resonance, Anisotropy, Bearings, Deformation, Flow (Dynamics), Gravity (Force)
Journal Articles

Vibration Diagnosis Featuring Blade-Shaft Coupling Effect of Turbine Rotor Models

Norihisa Anegawa, Hiroyuki Fujiwara, Osami Matsushita
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. February 2011, 133(2): 022501.
https://doi.org/10.1115/1.4001980
Published Online: October 26, 2010
View Article titled, Vibration Diagnosis Featuring Blade-Shaft Coupling Effect of Turbine Rotor Models
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Topics: Blades, Vibration, Resonance
Proceedings Papers

Evaluation of Q-Values of a Rotor-Bearing System Using a Modal Open Loop Transfer Function

Hiroyuki Fujiwara, Yasuo Fukushima, Naohiko Takahashi, Hiroto Oyama, Osami Matsushita
Proc. ASME. GT2009, Volume 6: Structures and Dynamics, Parts A and B, 901-908, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59723
https://doi.org/10.1115/GT2009-59723
View Paper titled, Evaluation of Q-Values of a Rotor-Bearing System Using a Modal Open Loop Transfer Function
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Topics: Bearings, Rotors, Transfer functions, Damping, Machinery, Sensors, Ball bearings, Dampers, Displacement, Impulse (Physics)
Proceedings Papers

Rotor-Blade Coupled Vibration Analysis by Measuring Modal Parameters of Actual Rotor

Akira Okabe, Takeshi Kudo, Hideo Yoda, Shigeo Sakurai, Osami Matsushita, Koki Shiohata
Proc. ASME. GT2009, Volume 6: Structures and Dynamics, Parts A and B, 803-812, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59471
https://doi.org/10.1115/GT2009-59471
View Paper titled, Rotor-Blade Coupled Vibration Analysis by Measuring Modal Parameters of Actual Rotor
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Topics: Blades, Rotors, Vibration analysis, Turbogenerators, Springs, Testing, Turbines, Vibration
Proceedings Papers

Evaluation of Q-Values of a Rotor-Bearing System Using a Modal Open Loop Transfer Function

Hiroyuki Fujiwara, Hirot Oyama, Norihisa Anegawa, Osami Matsushita
Proc. ASME. GT2008, Volume 5: Structures and Dynamics, Parts A and B, 1025-1032, June 9–13, 2008
Publisher: American Society of Mechanical Engineers
Paper No: GT2008-50459
https://doi.org/10.1115/GT2008-50459
View Paper titled, Evaluation of Q-Values of a Rotor-Bearing System Using a Modal Open Loop Transfer Function
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Topics: Bearings, Rotors, Transfer functions, Damping, Eigenvalues, Excitation, Feedforward control, Magnetic bearings, Sensors, Simulation
Proceedings Papers

Blade-Shaft Coupled Resonance Vibration by Using Active Magnetic Bearing Excitation

Norihisa Anegawa, Hiroyuki Fujiwara, Osami Matsushita
Proc. ASME. GT2008, Volume 5: Structures and Dynamics, Parts A and B, 1183-1190, June 9–13, 2008
Publisher: American Society of Mechanical Engineers
Paper No: GT2008-50904
https://doi.org/10.1115/GT2008-50904
View Paper titled, Blade-Shaft Coupled Resonance Vibration by Using Active Magnetic Bearing Excitation
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Topics: Blades, Excitation, Magnetic bearings, Resonance, Vibration, Design, Antiresonance, Bearings, Dynamics (Mechanics), Power stations
Proceedings Papers

An Evaluation of Stability Indices Using Sensitivity Functions for Active Magnetic Bearing Supported High-Speed Rotor

Naohiko Takahashi, Hiroyuki Fujiwara, Makoto Ito, Yasuo Fukushima, Osami Matsushita
Proc. ASME. IDETC-CIE2005, Volume 1: 20th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 1153-1162, September 24–28, 2005
Publisher: American Society of Mechanical Engineers
Paper No: DETC2005-84836
https://doi.org/10.1115/DETC2005-84836
View Paper titled, An Evaluation of Stability Indices Using Sensitivity Functions for Active Magnetic Bearing Supported High-Speed Rotor
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Topics: Magnetic bearings, Rotors, Stability, Compressors, Feedback, Separation (Technology), Signals, Transfer functions, Turbochargers
Proceedings Papers

Reduction of Flow-Induced Vibration Using Parametric Excitation

Tomotsugu Tanaka, Koetsu Takano, Hiroyuki Fujiwara, Osami Matsushita
Proc. ASME. IMECE2002, 5th International Symposium on Fluid Structure Interaction, Aeroelasticity, and Flow Induced Vibration and Noise, 501-507, November 17–22, 2002
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2002-33576
https://doi.org/10.1115/IMECE2002-33576
View Paper titled, Reduction of Flow-Induced Vibration Using Parametric Excitation
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Topics: Excitation, Flow-induced vibrations, Vibration, Dampers, Degrees of freedom, Electromagnetic actuators, Feedback, Fluid dynamics, Passive control, Quenching (Metalworking)
Journal Articles

An Evaluation of Stability Indices Using Sensitivity Functions for Active Magnetic Bearing Supported High-Speed Rotor

Naohiko Takahashi, Hiroyuki Fujiwara, Osami Matsushita, Makoto Ito, Yasuo Fukushima
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. April 2007, 129(2): 230–238.
https://doi.org/10.1115/1.2424979
Published Online: October 5, 2006
View Article titled, An Evaluation of Stability Indices Using Sensitivity Functions for Active Magnetic Bearing Supported High-Speed Rotor
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Topics: Stability, Transfer functions, Rotors, Magnetic bearings, Rotation
Journal Articles

Aseismic Vibration Control of Flexible Rotors Using Active Magnetic Bearing

Osami Matsushita, Toshio Imashima, Yoshitaka Hisanaga, Hiroki Okubo
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. January 2002, 124(1): 49–57.
https://doi.org/10.1115/1.1423633
Published Online: July 1, 2001
View Article titled, Aseismic Vibration Control of Flexible Rotors Using Active Magnetic Bearing
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Topics: Excitation, Feedforward control, Rotors, Vibration, Vibration control, Bearings, Earthquakes, Magnetic bearings