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Masayuki Ochiai
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Proceedings Papers

Vibration Analysis of High Speed Stepped Thrust Gas Film Bearings With Inertia Effects

Masayuki Ochiai, Hiromu Hashimoto
Proc. ASME. DETC97, Volume 1B: 16th Biennial Conference on Mechanical Vibration and Noise, V01BT07A013, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/VIB-4047
https://doi.org/10.1115/DETC97/VIB-4047
View Paper titled, Vibration Analysis of High Speed Stepped Thrust Gas Film Bearings With Inertia Effects
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Topics: Bearings, Inertia (Mechanics), Thrust, Vibration, Vibration analysis
Proceedings Papers

Optimum Design of Magnetic Head Slider Under Static and Dynamic Operation Conditions of Hard Disk Drive

Yasuhisa Hattori, Hiromu Hashimoto, Masayuki Ochiai
Proc. ASME. DETC99, Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 1125-1134, September 12–16, 1999
Publisher: American Society of Mechanical Engineers
Paper No: DETC99/VIB-8283
https://doi.org/10.1115/DETC99/VIB-8283
View Paper titled, Optimum Design of Magnetic Head Slider Under Static and Dynamic Operation Conditions of Hard Disk Drive
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Topics: Design, Disks, Magnetic heads
Proceedings Papers

Groove Shape Optimization of Thrust Air Bearing for Small Size Spindle Considering the Processing Errors

Masayuki Ochiai, Naoya Kato, Hiromu Hashimoto
Proc. ASME. ISPS-MIPE2018, ASME-JSME 2018 Joint International Conference on Information Storage and Processing Systems and Micromechatronics for Information and Precision Equipment, V001T02A002, August 29–30, 2018
Publisher: American Society of Mechanical Engineers
Paper No: ISPS-MIPE2018-8549
https://doi.org/10.1115/ISPS-MIPE2018-8549
View Paper titled, Groove Shape Optimization of Thrust Air Bearing for Small Size Spindle Considering the Processing Errors
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Topics: Air bearings, Errors, Shape optimization, Thrust, Lasers, Machining, Thrust bearings, Engines, Microfabrication, Motors
Journal Articles

Robust Optimum Design of Fluid Dynamic Bearing for Hard Disk Drive Spindle Motors

Hiromu Hashimoto, Masayuki Ochiai, Yuta Sunami
Journal: Journal of Tribology
Publisher: ASME
Article Type: Applications
J. Tribol. October 2012, 134(4): 041102.
https://doi.org/10.1115/1.4007246
Published Online: August 23, 2012
View Article titled, Robust Optimum Design of Fluid Dynamic Bearing for Hard Disk Drive Spindle Motors
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Topics: Bearings, Design, Motors, Friction, Torque
Proceedings Papers

Robust Optimum Design of Fluid Dynamic Bearing for 2.5 Inch HDD Using Statistical Method

Hiromu Hashimoto, Masayuki Ochiai, Yuta Sunami
Proc. ASME. IJTC2011, ASME/STLE 2011 Joint Tribology Conference, 123-125, October 24–26, 2011
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2011-61063
https://doi.org/10.1115/IJTC2011-61063
View Paper titled, Robust Optimum Design of Fluid Dynamic Bearing for 2.5 Inch HDD Using Statistical Method
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Topics: Bearings, Design, Fluids, Horizontal directional drilling, Errors, Manufacturing, Motors, Mass production, Optimization
Proceedings Papers

Optimum Design of Fluid Film Bearing for HDD Spindle Considering the Tolerances

Yuta Sunami, Masayuki Ochiai, Hiromu Hashimoto
Proc. ASME. IJTC2010, STLE/ASME 2010 International Joint Tribology Conference, 115-117, October 17–20, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2010-41086
https://doi.org/10.1115/IJTC2010-41086
View Paper titled, Optimum Design of Fluid Film Bearing for HDD Spindle Considering the Tolerances
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Topics: Bearings, Design, Fluid films, Horizontal directional drilling, Mass production, Noise (Sound), Optimization, Sensitivity analysis
Journal Articles

Stabilization Method for Small-Bore Journal Bearings Utilizing Starved Lubrication

Hiromu Hashimoto, Masayuki Ochiai
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. January 2010, 132(1): 011703.
https://doi.org/10.1115/1.4000269
Published Online: November 17, 2009
View Article titled, Stabilization Method for Small-Bore Journal Bearings Utilizing Starved Lubrication
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Topics: Bearings, Flow (Dynamics), Journal bearings, Lubrication, Stability, Trajectories (Physics), Theoretical analysis
Proceedings Papers

Optimization of Groove Geometry for Thrust Air Bearing According to Various Objective Functions

Hiromu Hashimoto, Masayuki Ochiai, Tadashi Namba
Proc. ASME. IJTC2008, STLE/ASME 2008 International Joint Tribology Conference, 327-329, October 20–22, 2008
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2008-71093
https://doi.org/10.1115/IJTC2008-71093
View Paper titled, Optimization of Groove Geometry for Thrust Air Bearing According to Various Objective Functions
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Topics: Air bearings, Geometry, Optimization, Thrust, Design, Film thickness, Friction, Stiffness, Torque, Bearings
Proceedings Papers

Optimization of Groove Geometry for Thrust Air Bearing to Maximize Bearing Stiffness

Hiromu Hashimoto, Masayuki Ochiai, Tadashi Nanba
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 225-227, October 22–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2007-44129
https://doi.org/10.1115/IJTC2007-44129
View Paper titled, Optimization of Groove Geometry for Thrust Air Bearing to Maximize Bearing Stiffness
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Topics: Air bearings, Bearings, Geometry, Optimization, Stiffness, Thrust, Thrust bearings, Design, Design methodology, Excitation
Proceedings Papers

Experimental Study of Stabilisation of Small Size Journal Bearing With Oil Supply Groove by Using Starved Lubrication and Bearing Orientation Angle Change

Masayuki Ochiai, Hiromu Hashimoto
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 209-210, October 22–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2007-44070
https://doi.org/10.1115/IJTC2007-44070
View Paper titled, Experimental Study of Stabilisation of Small Size Journal Bearing With Oil Supply Groove by Using Starved Lubrication and Bearing Orientation Angle Change
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Topics: Bearings, Journal bearings, Lubrication, Machinery, Stability, Compressors, Durability, Horizontal directional drilling, Load bearing capacity, Manufacturing
Journal Articles

Experimental Study on the Stabilization of Small-Bore Journal Bearings by Controlling Starved Lubrication and Bearing Orientation Angle

Hiromu Hashimoto, Masayuki Ochiai
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. January 2009, 131(1): 011705.
https://doi.org/10.1115/1.2991128
Published Online: December 4, 2008
View Article titled, Experimental Study on the Stabilization of Small-Bore Journal Bearings by Controlling Starved Lubrication and Bearing Orientation Angle
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Topics: Bearings, Journal bearings, Lubrication, Stability
Journal Articles

Optimization of Groove Geometry for Thrust Air Bearing to Maximize Bearing Stiffness

Hiromu Hashimoto, Masayuki Ochiai
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 2008, 130(3): 031101.
https://doi.org/10.1115/1.2913546
Published Online: June 23, 2008
View Article titled, Optimization of Groove Geometry for Thrust Air Bearing to Maximize Bearing Stiffness
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Topics: Bearings, Geometry, Stiffness, Film thickness, Design, Optimization