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Journal Articles

Vibration Reduction of Large Unbalanced Rotor Supported by Externally Pressurized Gas Journal Bearings With Asymmetrically Arranged Gas Supply Holes (Verification of the Effectiveness of a Supply Gas Pressure Control System)

Tomohiko Ise, Mitsuyoshi Osaki, Masami Matsubara, Shozo Kawamura
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. March 2019, 141(3): 031701.
Paper No: TRIB-17-1282
https://doi.org/10.1115/1.4041460
Published Online: November 1, 2018
View Article titled, Vibration Reduction of Large Unbalanced Rotor Supported by Externally Pressurized Gas Journal Bearings With Asymmetrically Arranged Gas Supply Holes (Verification of the Effectiveness of a Supply Gas Pressure Control System)
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Topics: Bearings, Pressure control, Rotors, Stress, Vibration, Journal bearings, Pressurized gas, Pressure, Rotation
Journal Articles

Optimal Design of Double-Mass Dynamic Vibration Absorbers Minimizing the Mobility Transfer Function

Toshihiko Asami, Yoshito Mizukawa, Tomohiko Ise
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. December 2018, 140(6): 061012.
Paper No: VIB-17-1198
https://doi.org/10.1115/1.4040229
Published Online: June 18, 2018
View Article titled, Optimal Design of Double-Mass Dynamic Vibration Absorbers Minimizing the Mobility Transfer Function
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Topics: Mechanical admittance, Optimization, Stability, Transfer functions, Vibration absorbers, Algebra
Journal Articles

Pressure Sensitive Paint Visualization of Pressure Distribution of Externally Pressurized Circular Thrust Gas Bearing With a Single Gas Supply Hole: Experimental Validation of Variation of Pressure Distribution by Supply Pressure

Tomohiko Ise, Shuma Kobayashi, Kazuhiro Itoh, Toshihiko Asami
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Briefs
J. Tribol. September 2017, 139(5): 054501.
Paper No: TRIB-16-1167
https://doi.org/10.1115/1.4035156
Published Online: April 6, 2017
View Article titled, Pressure Sensitive Paint Visualization of Pressure Distribution of Externally Pressurized Circular Thrust Gas Bearing With a Single Gas Supply Hole: Experimental Validation of Variation of Pressure Distribution by Supply Pressure
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Topics: Bearings, Gas bearings, Pressure, Thrust, Paints, Numerical analysis, Visualization
Proceedings Papers

Numerical Analysis of an Air Spring With Two Tanks Connected by a Long Pipe: Effect of Orifice Installed in the Pipe

Masatoshi Toji, Toshihiko Asami, Tomohiko Ise
Proc. ASME. PVP2016, Volume 5: High-Pressure Technology; Rudy Scavuzzo Student Paper Symposium and 24th Annual Student Paper Competition; ASME Nondestructive Evaluation, Diagnosis and Prognosis Division (NDPD); Electric Power Research Institute (EPRI) Creep Fatigue Workshop, V005T09A021, July 17–21, 2016
Publisher: American Society of Mechanical Engineers
Paper No: PVP2016-63448
https://doi.org/10.1115/PVP2016-63448
View Paper titled, Numerical Analysis of an Air Spring With Two Tanks Connected by a Long Pipe: Effect of Orifice Installed in the Pipe
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Topics: Numerical analysis, Pipes, Springs, Resonance, Finite difference methods, Frequency response, Inertia (Mechanics), Partial differential equations, Pressure, Vortices
Proceedings Papers

Validation of the Accuracy of Approximation in a Design Formula for an Air Spring by Using Numerical Analysis

Toshihiko Asami, Yasutaka Yokota, Masahito Okura, Tomohiko Ise, Itsuro Honda, Hiroya Sakamoto
Proc. ASME. PVP2013, Volume 8: Seismic Engineering, V008T08A008, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97724
https://doi.org/10.1115/PVP2013-97724
View Paper titled, Validation of the Accuracy of Approximation in a Design Formula for an Air Spring by Using Numerical Analysis
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Topics: Approximation, Design, Numerical analysis, Springs, Pipes, Finite difference methods, Flow (Dynamics), Frequency response, Pressure, Turbulence
Proceedings Papers

Analysis of Wave Propagation in Overhead Contact Wire of Trains Using the Transfer Matrix Method

Takahiro Fukui, Toshihiko Asami, Tomohiko Ise
Proc. ASME. PVP2013, Volume 8: Seismic Engineering, V008T08A047, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97850
https://doi.org/10.1115/PVP2013-97850
View Paper titled, Analysis of Wave Propagation in Overhead Contact Wire of Trains Using the Transfer Matrix Method
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Topics: Trains, Wave propagation, Wire, Vibration, Excitation, Vibration analysis, Elasticity, Periodic structures, Wear
Proceedings Papers

An Approximate Formula to Calculate the Restoring and Damping Forces of an Air Spring With a Small Tube

Toshihiko Asami, Yasutaka Yokota, Tomohiko Ise, Itsuro Honda, Hiroya Sakamoto
Proc. ASME. PVP2012, Volume 8: Seismic Engineering, 127-137, July 15–19, 2012
Publisher: American Society of Mechanical Engineers
Paper No: PVP2012-78481
https://doi.org/10.1115/PVP2012-78481
View Paper titled, An Approximate Formula to Calculate the Restoring and Damping Forces of an Air Spring With a Small Tube
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Topics: Damping, Springs, Frequency response, Resonance, Automobiles, Elastic constants, Flow (Dynamics), Harmonic motion, Railway vehicles, Vibration
Journal Articles

An Approximate Formula to Calculate the Restoring and Damping Forces of an Air Spring With a Small Pipe

Toshihiko Asami, Yasutaka Yokota, Tomohiko Ise, Itsuro Honda, Hiroya Sakamoto
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. October 2013, 135(5): 051029.
Paper No: VIB-12-1117
https://doi.org/10.1115/1.4023820
Published Online: July 1, 2013
View Article titled, An Approximate Formula to Calculate the Restoring and Damping Forces of an Air Spring With a Small Pipe
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Topics: Damping, Pipes, Springs, Flow (Dynamics), Pressure, Elastic constants
Journal Articles

Theoretical and Experimental Analysis of the Nonlinear Characteristics of an Air Spring With an Orifice

Toshihiko Asami, Yasutaka Yokota, Tomohiko Ise, Itsuro Honda, Hiroya Sakamoto
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. February 2013, 135(1): 011012.
Paper No: VIB-11-1244
https://doi.org/10.1115/1.4007677
Published Online: February 4, 2013
View Article titled, Theoretical and Experimental Analysis of the Nonlinear Characteristics of an Air Spring With an Orifice
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Topics: Damping, Elastic constants, Springs, Pressure
Proceedings Papers

Theoretical and Experimental Analysis of the Non-Linear Characteristics of an Air Spring With an Orifice

Yasutaka Yokota, Toshihiko Asami, Tomohiko Ise, Itsuro Honda, Hiroya Sakamoto
Proc. ASME. PVP2011, Volume 4: Fluid-Structure Interaction, 487-495, July 17–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: PVP2011-57295
https://doi.org/10.1115/PVP2011-57295
View Paper titled, Theoretical and Experimental Analysis of the Non-Linear Characteristics of an Air Spring With an Orifice
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Topics: Experimental analysis, Springs, Damping, Dampers, Design, Elastic constants, Flow (Dynamics), Rails, Vibration isolation