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Proceedings Papers

Numerical Study on Fluid-Structure Interaction in VFP Artificial Heart With Jelly-Fish Valve

Vladimir Kudriavtsev, Satoyuki Kawano, T. Isoyama, H. Arai, T. Yambe, Y. Abe, K. Imachi, S. Nitta, H. Hashimoto
Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 671-681, July 6–10, 2003
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2003-45114
https://doi.org/10.1115/FEDSM2003-45114
View Paper titled, Numerical Study on Fluid-Structure Interaction in VFP Artificial Heart With Jelly-Fish Valve
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Topics: Artificial hearts, Fluid structure interaction, Valves, Vorticity, Pipes, Flow (Dynamics), Fluids, Blood, Computational fluid dynamics, Computer software
Proceedings Papers

Theoretical and Experimental Investigations Into Spacing Characteristics Between Roller and Three Types of Webs With Different Permeabilities

H. Hashimoto, M. Okajima
Proc. ASME. TRIB2004, ASME/STLE 2004 International Joint Tribology Conference, Parts A and B, 1065-1096, October 24–27, 2004
Publisher: American Society of Mechanical Engineers
Paper No: TRIB2004-64281
https://doi.org/10.1115/TRIB2004-64281
View Paper titled, Theoretical and Experimental Investigations Into Spacing Characteristics Between Roller and Three Types of Webs With Different Permeabilities
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Topics: Permeability, Rollers, Film thickness, Air entrainment, Coated papers, Diffusion (Physics), Equilibrium (Physics), Leakage, Newsprint, Tension
Journal Articles

Theoretical and Experimental Investigations Into Spacing Characteristics Between Roller and Three Types of Webs With Different Permeabilities

H. Hashimoto, M. Okajima
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 2006, 128(2): 267–274.
https://doi.org/10.1115/1.2164463
Published Online: October 6, 2005
View Article titled, Theoretical and Experimental Investigations Into Spacing Characteristics Between Roller and Three Types of Webs With Different Permeabilities
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Topics: Film thickness, Permeability, Rollers, Tension
Journal Articles

Improvement of Operating Characteristics of High-Speed Hydrodynamic Journal Bearings by Optimum Design: Part I— Formulation of Methodology and Its Application to Elliptical Bearing Design

H. Hashimoto, Professor,, K. Matsumoto, Graduate Student,
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Papers
J. Tribol. April 2001, 123(2): 305–312.
https://doi.org/10.1115/1.1308019
Published Online: June 8, 2000
View Article titled, Improvement of Operating Characteristics of High-Speed Hydrodynamic Journal Bearings by Optimum Design: Part I— Formulation of Methodology and Its Application to Elliptical Bearing Design
Open the PDF for Improvement of Operating Characteristics of High-Speed Hydrodynamic Journal Bearings by Optimum Design: Part I— Formulation of Methodology and Its Application to Elliptical Bearing Design in another window
Topics: Bearings, Design, Journal bearings
Journal Articles

Effects of Film Temperature on Piston-Ring Lubrication for Refrigeration Compressors Considering Surface Roughness

H. Nakai, N. Ino, H. Hashimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 1998, 120(2): 252–258.
https://doi.org/10.1115/1.2834419
Published Online: April 1, 1998
View Article titled, Effects of Film Temperature on Piston-Ring Lubrication for Refrigeration Compressors Considering Surface Roughness
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Topics: Compressors, Lubrication, Piston rings, Refrigeration, Surface roughness, Temperature, Pressure, Temperature distribution, Bearings, Cylinders
Journal Articles

Surface Roughness Effects in High-Speed Hydrodynamic Journal Bearings

H. Hashimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 1997, 119(4): 776–780.
https://doi.org/10.1115/1.2833884
Published Online: October 1, 1997
View Article titled, Surface Roughness Effects in High-Speed Hydrodynamic Journal Bearings
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Topics: Journal bearings, Surface roughness, Turbulence, Bearings, Computation, Flow (Dynamics), Lubricants, Numerical analysis, Pressure, Shear flow
Journal Articles

Effects of Foil Bending Rigidity on Spacing Height Characteristics of Hydrostatic Porous Foil Bearings for Web Handling Processes

H. Hashimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 1997, 119(3): 422–427.
https://doi.org/10.1115/1.2833510
Published Online: July 1, 1997
View Article titled, Effects of Foil Bending Rigidity on Spacing Height Characteristics of Hydrostatic Porous Foil Bearings for Web Handling Processes
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Topics: Foil bearings, Hydrostatics, Stiffness, Bearings, Computation, Differential equations, Film thickness, Finite difference methods, Flow (Dynamics), Pressure
Journal Articles

A Numerical Study on Motion of a Sphere Coated With a Thin Liquid Film at Intermediate Reynolds Numbers

S. Kawano, H. Hashimoto
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. June 1997, 119(2): 397–403.
https://doi.org/10.1115/1.2819147
Published Online: June 1, 1997
View Article titled, A Numerical Study on Motion of a Sphere Coated With a Thin Liquid Film at Intermediate Reynolds Numbers
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Topics: Lubrication theory, Reynolds number, Drag (Fluid dynamics), Flow (Dynamics), Bubbles, Drops, Film thickness, Fluids, Heat transfer, Temperature
Journal Articles

Thermohydrodynamic Analysis of High-Speed Journal Bearings With Surface Roughness

H. Hashimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Briefs
J. Tribol. July 1996, 118(3): 698–701.
https://doi.org/10.1115/1.2831595
Published Online: July 1, 1996
View Article titled, Thermohydrodynamic Analysis of High-Speed Journal Bearings With Surface Roughness
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Topics: Journal bearings, Surface roughness, Thermohydrodynamics
Journal Articles

Piston-Ring Lubrication Problems for Refrigeration Compressors Considering Combined Effects of Supply Oil Quantity and Surface Roughness

H. Nakai, N. Ino, H. Hashimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 1996, 118(2): 286–291.
https://doi.org/10.1115/1.2831297
Published Online: April 1, 1996
View Article titled, Piston-Ring Lubrication Problems for Refrigeration Compressors Considering Combined Effects of Supply Oil Quantity and Surface Roughness
Open the PDF for Piston-Ring Lubrication Problems for Refrigeration Compressors Considering Combined Effects of Supply Oil Quantity and Surface Roughness in another window
Topics: Compressors, Lubrication, Piston rings, Refrigeration, Surface roughness, Friction, Boundary-value problems, Cylinders, Bearings, Energy dissipation
Journal Articles

Squeeze Film Characteristics Between Parallel Circular Plates Containing a Single Central Air Bubble in the Inertial Flow Regime

H. Hashimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 1995, 117(3): 513–518.
https://doi.org/10.1115/1.2831283
Published Online: July 1, 1995
View Article titled, Squeeze Film Characteristics Between Parallel Circular Plates Containing a Single Central Air Bubble in the Inertial Flow Regime
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Topics: Bubbles, Flow (Dynamics), Plates (structures), Fluid films, Inertia (Mechanics), Nonlinear differential equations, Film flow, Film thickness, Lubrication, Momentum
Journal Articles

Theoretical Analysis of Externally Pressurized Porous Foil Bearings—Part I: In the Case of Smooth Surface Porous Shaft

H. Hashimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. January 1995, 117(1): 103–111.
https://doi.org/10.1115/1.2830583
Published Online: January 1, 1995
View Article titled, Theoretical Analysis of Externally Pressurized Porous Foil Bearings—Part I: In the Case of Smooth Surface Porous Shaft
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Topics: Foil bearings, Theoretical analysis, Pressure, Bearings, Film thickness, Computation, Differential equations, Equilibrium (Physics), Finite element analysis, Flow (Dynamics)
Journal Articles

Adiabatic Approximate Solution for Static and Dynamic Characteristics of Turbulent Partial Journal Bearings With Surface Roughness

H. Hashimoto, M. Mongkolwongrojn
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 1994, 116(4): 672–680.
https://doi.org/10.1115/1.2927315
Published Online: October 1, 1994
View Article titled, Adiabatic Approximate Solution for Static and Dynamic Characteristics of Turbulent Partial Journal Bearings With Surface Roughness
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Topics: Journal bearings, Surface roughness, Turbulence, Bearings, Pressure, Temperature distribution, Boundary-value problems, Cavitation erosion, Damage, Damping
Journal Articles

Non-Newtonian Effects on the Static Characteristics of One-Dimensional Slider Bearings in the Inertial Flow Regime

H. Hashimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 1994, 116(2): 303–309.
https://doi.org/10.1115/1.2927215
Published Online: April 1, 1994
View Article titled, Non-Newtonian Effects on the Static Characteristics of One-Dimensional Slider Bearings in the Inertial Flow Regime
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Topics: Flow (Dynamics), Slider bearings, Fluids, Inertia (Mechanics), Lubricants, Film thickness, Friction, Load bearing capacity, Momentum, Non-Newtonian fluids
Journal Articles

Viscoelastic Squeeze Film Characteristics With Inertia Effects Between Two Parallel Circular Plates Under Sinusoidal Motion

H. Hashimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. January 1994, 116(1): 161–166.
https://doi.org/10.1115/1.2927034
Published Online: January 1, 1994
View Article titled, Viscoelastic Squeeze Film Characteristics With Inertia Effects Between Two Parallel Circular Plates Under Sinusoidal Motion
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Topics: Inertia (Mechanics), Plates (structures), Fluids, Lubrication, Film thickness, Momentum, Pressure, Viscoelastic fluids
Journal Articles

Discussion: “Effect of Hydrodynamic Thrust Bearings on Lateral Shaft Vibrations” (Mittwollen, N., Hegel, T., and Glienicke, J., 1991, ASME J. Tribol., 113, pp. 811–817)

H. Hashimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Discussions
J. Tribol. October 1991, 113(4): 817–818.
https://doi.org/10.1115/1.2926650
Published Online: October 1, 1991
View Article titled, Discussion: “Effect of Hydrodynamic Thrust Bearings on Lateral Shaft Vibrations” (Mittwollen, N., Hegel, T., and Glienicke, J., 1991, ASME J. Tribol., 113, pp. 811–817)
Open the PDF for Discussion: “Effect of Hydrodynamic Thrust Bearings on Lateral Shaft Vibrations” (Mittwollen, N., Hegel, T., and Glienicke, J., 1991, ASME J. Tribol., 113, pp. 811–817) in another window
Topics: Thrust bearings, Vibration
Journal Articles

Closure to “Discussion of ‘Performance Characteristic Analysis of Sector-Shaped Pad Thrust Bearings in Turbulent Inertial Flow Regime Under Three Types of Lubrication Conditions’” (1990, ASME J. Tribol., 112, p. 485)

H. Hashimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Discussions
J. Tribol. July 1990, 112(3): 485.
https://doi.org/10.1115/1.2924246
Published Online: July 1, 1990
View Article titled, Closure to “Discussion of ‘Performance Characteristic Analysis of Sector-Shaped Pad Thrust Bearings in Turbulent Inertial Flow Regime Under Three Types of Lubrication Conditions’” (1990, ASME J. Tribol., 112, p. 485)
Open the PDF for Closure to “Discussion of ‘Performance Characteristic Analysis of Sector-Shaped Pad Thrust Bearings in Turbulent Inertial Flow Regime Under Three Types of Lubrication Conditions’” (1990, ASME J. Tribol., 112, p. 485) in another window
Topics: Flow (Dynamics), Lubrication, Thrust bearings, Turbulence
Journal Articles

Performance Characteristic Analysis of Sector-Shaped Pad Thrust Bearings in Turbulent Inertial Flow Regime Under Three Types of Lubrication Conditions

H. Hashimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 1990, 112(3): 477–484.
https://doi.org/10.1115/1.2920284
Published Online: July 1, 1990
View Article titled, Performance Characteristic Analysis of Sector-Shaped Pad Thrust Bearings in Turbulent Inertial Flow Regime Under Three Types of Lubrication Conditions
Open the PDF for Performance Characteristic Analysis of Sector-Shaped Pad Thrust Bearings in Turbulent Inertial Flow Regime Under Three Types of Lubrication Conditions in another window
Topics: Flow (Dynamics), Lubrication, Thrust bearings, Turbulence, Load bearing capacity, Performance characterization, Pressure, Bearings, Boundary-value problems, Fluid films
Journal Articles

Dynamic Behavior of Unbalanced Rigid Shaft Supported on Turbulent Journal Bearings—Theory and Experiment

H. Hashimoto, S. Wada
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 1990, 112(2): 404–408.
https://doi.org/10.1115/1.2920271
Published Online: April 1, 1990
View Article titled, Dynamic Behavior of Unbalanced Rigid Shaft Supported on Turbulent Journal Bearings—Theory and Experiment
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Topics: Journal bearings, Turbulence, Fluid films, Inertia (Mechanics), Bearings, Nonlinear equations, Reynolds number, Rotors, Stability
Journal Articles

The Effects of Fluid Inertia Forces on the Static Characteristics of Sector-Shaped, High-Speed Thrust Bearings in Turbulent Flow Regime

H. Hashimoto
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 1989, 111(3): 406–412.
https://doi.org/10.1115/1.3261939
Published Online: July 1, 1989
View Article titled, The Effects of Fluid Inertia Forces on the Static Characteristics of Sector-Shaped, High-Speed Thrust Bearings in Turbulent Flow Regime
Open the PDF for The Effects of Fluid Inertia Forces on the Static Characteristics of Sector-Shaped, High-Speed Thrust Bearings in Turbulent Flow Regime in another window
Topics: Fluids, Inertia (Mechanics), Thrust bearings, Turbulence, Load bearing capacity, Bearings, Film thickness, Lubrication, Momentum, Performance characterization