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John J. Yu
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Proceedings Papers

Obtaining Influence Coefficients in Different Formats With Reduced Number of Trial Runs on Two-Plane Balancing

John J. Yu, Nicolas Péton
Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT29A002, September 21–25, 2020
Paper No: GT2020-14191
DOI: https://doi.org/10.1115/GT2020-14191
View Paper titled, Obtaining Influence Coefficients in Different Formats With Reduced Number of Trial Runs on Two-Plane Balancing
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Topics: Weight (Mass)
Proceedings Papers

Effect of Higher-Than-Rated-Speed Rotordynamic Modes on Rotor Balancing

John J. Yu, Siddharth Ashar
Proc. ASME. GT2015, Volume 7A: Structures and Dynamics, V07AT30A010, June 15–19, 2015
Paper No: GT2015-43405
DOI: https://doi.org/10.1115/GT2015-43405
View Paper titled, Effect of Higher-Than-Rated-Speed Rotordynamic Modes on Rotor Balancing
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Topics: Excitation systems, Generators, Machinery, Modeling, Nondestructive evaluation, Rotor balancing, Rotors, Vibration, Wheels
Proceedings Papers

The Necessity of a Third Balance Plane for Generator Rotor Field Balancing

John J. Yu
Proc. ASME. GT2014, Volume 7A: Structures and Dynamics, V07AT31A012, June 16–20, 2014
Paper No: GT2014-25706
DOI: https://doi.org/10.1115/GT2014-25706
View Paper titled, The Necessity of a Third Balance Plane for Generator Rotor Field Balancing
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Topics: Generators, Rotors, Nondestructive evaluation, Vibration, Excitation systems, Bearings
Proceedings Papers

Rotor/Seal Experimental and Analytical Study on Full Annular Rub

John J. Yu, Paul Goldman, Donald E. Bently
Proc. ASME. GT2000, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, V004T03A032, May 8–11, 2000
Paper No: 2000-GT-0389
DOI: https://doi.org/10.1115/2000-GT-0389
View Paper titled, Rotor/Seal Experimental and Analytical Study on Full Annular Rub
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Topics: Rotors, Clearances (Engineering), Damping, Dry friction, Stiffness
Proceedings Papers

A Hydrostatic Bearing With Compressible Fluid for Broad Application

John S. Jacob, Donald E. Bently, John J. Yu
Proc. ASME. GT2001, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T03A017, June 4–7, 2001
Paper No: 2001-GT-0250
DOI: https://doi.org/10.1115/2001-GT-0250
View Paper titled, A Hydrostatic Bearing With Compressible Fluid for Broad Application
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Topics: Bearings, Fluids, Hydrostatics, Gas bearings, Clearances (Engineering), Dimensions, Gas flow, Heating, Testing
Proceedings Papers

Rolling Element Bearing Defect Detection and Diagnostics Using Displacement Transducers

John J. Yu, Donald E. Bently, Paul Goldman, Kenwood P. Dayton, Brandon G. Van Slyke
Proc. ASME. GT2001, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T04A020, June 4–7, 2001
Paper No: 2001-GT-0028
DOI: https://doi.org/10.1115/2001-GT-0028
View Paper titled, Rolling Element Bearing Defect Detection and Diagnostics Using Displacement Transducers
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Topics: Displacement, Flaw detection, Rolling bearings, Transducers, Deflection, Bearings, Accelerometers, Rollers, Signals, Stress
Proceedings Papers

Rub Diagnostics Based on Vibration Data

John J. Yu
Proc. ASME. GT2013, Volume 4: Ceramics; Concentrating Solar Power Plants; Controls, Diagnostics and Instrumentation; Education; Electric Power; Fans and Blowers, V004T06A003, June 3–7, 2013
Paper No: GT2013-94203
DOI: https://doi.org/10.1115/GT2013-94203
View Paper titled, Rub Diagnostics Based on Vibration Data
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Topics: Vibration, Turbomachinery, Engineers, Machinery, Steady state, Transients (Dynamics)
Proceedings Papers

On Two-Plane Balancing of Symmetric Rotors

John J. Yu
Proc. ASME. GT2012, Volume 7: Structures and Dynamics, Parts A and B, 485-495, June 11–15, 2012
Paper No: GT2012-68061
DOI: https://doi.org/10.1115/GT2012-68061
View Paper titled, On Two-Plane Balancing of Symmetric Rotors
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Topics: Rotors, Weight (Mass), Vibration, Downtime, Energy generation, Flow (Dynamics), Generators, Pressure, Rotor balancing, Turbines
Proceedings Papers

On Occurrence of Reverse Full Annular Rub

John J. Yu
Proc. ASME. GT2011, Volume 6: Structures and Dynamics, Parts A and B, 219-227, June 6–10, 2011
Paper No: GT2011-45153
DOI: https://doi.org/10.1115/GT2011-45153
View Paper titled, On Occurrence of Reverse Full Annular Rub
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Topics: Damping, Degrees of freedom, Dry friction, Friction, Machinery, Polynomials, Rotors, Whirls
Journal Articles

On Occurrence of Reverse Full Annular Rub

John J. Yu
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2012, 134(1): 012505.
DOI: https://doi.org/10.1115/1.4004161
Published Online: November 7, 2011
View Article titled, On Occurrence of Reverse Full Annular Rub
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Topics: Damping, Dry friction, Friction, Rotors, Whirls, Clearances (Engineering)
Proceedings Papers

Onset of 1/2X Vibration and Its Prevention

John J. Yu
Proc. ASME. GT2009, Volume 6: Structures and Dynamics, Parts A and B, 825-836, June 8–12, 2009
Paper No: GT2009-59591
DOI: https://doi.org/10.1115/GT2009-59591
View Paper titled, Onset of 1/2X Vibration and Its Prevention
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Topics: Vibration, Bearings, Machinery, Pressure, Temperature, Clearances (Engineering), Excitation, Probes, Whirls
Journal Articles

Onset of 1 2 X Vibration and Its Prevention

John J. Yu
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research Papers
J. Eng. Gas Turbines Power. February 2010, 132(2): 022502.
DOI: https://doi.org/10.1115/1.3155794
Published Online: November 4, 2009
View Article titled, Onset of 1 2 X Vibration and Its Prevention
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Topics: Bearings, Vibration, Probes, Machinery
Proceedings Papers

Relationship of Influence Coefficients Between Static-Couple and Multi-Plane Methods on Two-Plane Balancing

John J. Yu
Proc. ASME. GT2008, Volume 5: Structures and Dynamics, Parts A and B, 1033-1045, June 9–13, 2008
Paper No: GT2008-50463
DOI: https://doi.org/10.1115/GT2008-50463
View Paper titled, Relationship of Influence Coefficients Between Static-Couple and Multi-Plane Methods on Two-Plane Balancing
Click here to open pdf in another window PDF for Relationship of Influence Coefficients Between Static-Couple and Multi-Plane Methods on Two-Plane Balancing
Topics: Probes, Vibration
Journal Articles

Relationship of Influence Coefficients Between Static-Couple and Multiplane Methods on Two-Plane Balancing

John J. Yu
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2009, 131(1): 012508.
DOI: https://doi.org/10.1115/1.2968866
Published Online: October 14, 2008
View Article titled, Relationship of Influence Coefficients Between Static-Couple and Multiplane Methods on Two-Plane Balancing
Click here to open pdf in another window PDF for Relationship of Influence Coefficients Between Static-Couple and Multiplane Methods on Two-Plane Balancing
Topics: Probes, Vibration, Weight (Mass)