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Shigeka Yoshimoto
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Proceedings Papers

Threshold Speed of Instability of a Herringbone-Grooved Rigid Rotor With a Bearing Bush Flexibly Supported by Straight Spring Wires

Kei Somaya, Koki Okubo, Masaaki Miyatake, Shigeka Yoshimoto
Proc. ASME. GT2015, Volume 7A: Structures and Dynamics, V07AT31A015, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43161
https://doi.org/10.1115/GT2015-43161
View Paper titled, Threshold Speed of Instability of a Herringbone-Grooved Rigid Rotor With a Bearing Bush Flexibly Supported by Straight Spring Wires
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Topics: Bearings, Rotors, Springs, Wire, Journal bearings, Foil bearings, Stability, Compressors, Durability, High temperature
Journal Articles

Static Characteristics of Aerostatic Thrust Bearings With Multiple Porous Inlet Ports

Takako Hosokawa, Kei Somaya, Masaaki Miyatake, Shigeka Yoshimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. April 2015, 137(2): 021702.
Paper No: TRIB-14-1129
https://doi.org/10.1115/1.4028999
Published Online: April 1, 2015
View Article titled, Static Characteristics of Aerostatic Thrust Bearings With Multiple Porous Inlet Ports
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Topics: Bearings, Gates (Closures), Thrust bearings, Clearances (Engineering)
Proceedings Papers

Experimental and Numerical Investigation of the High-Speed Instability of Aerodynamic Foil Journal Bearings for Micro Turbomachinery

Kei Somaya, Toru Yamashita, Shigeka Yoshimoto
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 243-245, October 7–10, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2012-61130
https://doi.org/10.1115/IJTC2012-61130
View Paper titled, Experimental and Numerical Investigation of the High-Speed Instability of Aerodynamic Foil Journal Bearings for Micro Turbomachinery
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Topics: Journal bearings, Turbomachinery, Foil bearings, Rotors, Compressors, Durability, Frequency response, High temperature, Stability
Journal Articles

Dynamic Characteristics of Aerostatic Porous Journal Bearings With a Surface-Restricted Layer

Yuta Otsu, Masaaki Miyatake, Shigeka Yoshimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. January 2011, 133(1): 011701.
https://doi.org/10.1115/1.4002730
Published Online: December 3, 2010
View Article titled, Dynamic Characteristics of Aerostatic Porous Journal Bearings With a Surface-Restricted Layer
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Topics: Bearings, Graphite, Journal bearings, Permeability, Porous materials, Stiffness, Metals, Clearances (Engineering), Damping
Journal Articles

Impulse-Load Dynamics of Squeeze Film Gas Bearings for a Linear Motion Guide

Yuji Ono, Shigeka Yoshimoto, Masaaki Miyatake
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 2009, 131(4): 041706.
https://doi.org/10.1115/1.3201894
Published Online: September 23, 2009
View Article titled, Impulse-Load Dynamics of Squeeze Film Gas Bearings for a Linear Motion Guide
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Topics: Bearings, Gas bearings, Impulse (Physics), Stress, Vibration, Pressure, Piezoelectric actuators
Proceedings Papers

Instability of Herringbone Grooved Aerodynamic Floating Bush Bearings Flexibly Supported by Foils With Hemispherical Bumps

Shigeka Yoshimoto, Masaaki Miyatake, Katsuya Nagata
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 261-263, October 22–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2007-44234
https://doi.org/10.1115/IJTC2007-44234
View Paper titled, Instability of Herringbone Grooved Aerodynamic Floating Bush Bearings Flexibly Supported by Foils With Hemispherical Bumps
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Topics: Bearings, Rotors
Proceedings Papers

Numerical Calculations of Pressure Distribution in the Bearing Clearance of Circular Aerostatic Thrust Bearings With a Single Air Supply Inlet

Shigeka Yoshimoto, Makoto Yamamoto, Kazuyuki Toda
Proc. ASME. IJTC2006, Part A: Tribomaterials; Lubricants and Additives; Elastohydrodynamic Lubrication; Hydrodynamic Lubrication and Fluid Film Bearings; Rolling Element Bearings; Engine Tribology; Machine Components Tribology; Contact Mechanics, 479-484, October 23–25, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2006-12251
https://doi.org/10.1115/IJTC2006-12251
View Paper titled, Numerical Calculations of Pressure Distribution in the Bearing Clearance of Circular Aerostatic Thrust Bearings With a Single Air Supply Inlet
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Topics: Bearings, Clearances (Engineering), Pressure, Thrust bearings, Shock waves, Computational fluid dynamics, Flow (Dynamics), Air flow, Flow visualization, Fluid dynamics
Journal Articles

Numerical Calculations of Pressure Distribution in the Bearing Clearance of Circular Aerostatic Thrust Bearings With a Single Air Supply Inlet

Shigeka Yoshimoto, Makoto Yamamoto, Kazuyuki Toda
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Papers
J. Tribol. April 2007, 129(2): 384–390.
https://doi.org/10.1115/1.2464135
Published Online: December 11, 2006
View Article titled, Numerical Calculations of Pressure Distribution in the Bearing Clearance of Circular Aerostatic Thrust Bearings With a Single Air Supply Inlet
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Topics: Bearings, Clearances (Engineering), Pressure, Thrust bearings, Flow (Dynamics), Turbulence