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Journal Articles

Early Experiences Designing a Scalable COVID-19 Reusable Elastomeric Respirator

Brianna L. Slatnick, Lumeng J. Yu, Alexander Yang, Kyle C. Wu, Robert W. Crum, Peter Betit, Mark Brown, Chad Pires, John R. Priest, Steven J. Staffa, Christopher Weldon, Steven J. Fishman, Heung Bae Kim, Farokh R. Demehri
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Technical Briefs
J. Med. Devices. March 2022, 16(1): 014502.
Paper No: MED-21-1185
https://doi.org/10.1115/1.4054055
Published Online: March 16, 2022
View Article titled, Early Experiences Designing a Scalable COVID-19 Reusable Elastomeric Respirator
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Topics: Respirators, Design, Testing, Particulate matter
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14191
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)
Journal Articles

Investigation on Thermo-Oxidative Aging Properties of Asphalt Binder with Hindered Phenolic Antioxidant

W. Wu, L. Li, J. Yu, S. Xu, C. Zhang, L. Xue
Journal: Journal of Testing and Evaluation
Publisher: ASTM International
Article Type: Technical Papers
J. Test. Eval.. March 2018, 46(2): 624–630.
Paper No: JTE20160289
https://doi.org/10.1520/JTE20160289
Published Online: March 1, 2018
View Article titled, Investigation on Thermo-Oxidative Aging Properties of Asphalt Binder with Hindered Phenolic Antioxidant
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Proceedings Papers

Conceptual Design of 2-DOF Flexure-Based Sensing Mechanisms for Superconductor Gravity Gradient

M. Jia, R. P. Jia, J. J. Yu
Proc. ASME. IDETC-CIE2015, Volume 5A: 39th Mechanisms and Robotics Conference, V05AT08A015, August 2–5, 2015
Publisher: American Society of Mechanical Engineers
Paper No: DETC2015-46827
https://doi.org/10.1115/DETC2015-46827
View Paper titled, Conceptual Design of 2-DOF Flexure-Based Sensing Mechanisms for Superconductor Gravity Gradient
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Topics: Bending (Stress), Conceptual design, Gravity (Force), Errors, Finite element analysis, Engineering simulation, Optimization, Screws, Simulation, Topology
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43405
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
Journal Articles

A Compliance-Based Parameterization Approach for Type Synthesis of Flexure Mechanisms

M. Jia, R. P. Jia, J. J. Yu
Journal: Journal of Mechanisms and Robotics
Publisher: ASME
Article Type: Research-Article
J. Mechanisms Robotics. August 2015, 7(3): 031014.
Paper No: JMR-14-1086
https://doi.org/10.1115/1.4028932
Published Online: August 1, 2015
View Article titled, A Compliance-Based Parameterization Approach for Type Synthesis of Flexure Mechanisms
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Topics: Flexure mechanisms, Bending (Stress)
Proceedings Papers

A Parameterization Approach for Compliance Analysis and Synthesis of Flexure Mechanisms

M. Jia, R. P. Jia, J. J. Yu
Proc. ASME. IDETC-CIE2014, Volume 5A: 38th Mechanisms and Robotics Conference, V05AT08A039, August 17–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: DETC2014-34996
https://doi.org/10.1115/DETC2014-34996
View Paper titled, A Parameterization Approach for Compliance Analysis and Synthesis of Flexure Mechanisms
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Topics: Flexure mechanisms, Bending (Stress), Chain, Deformation, Degrees of freedom, Engineering simulation, Errors, Finite element analysis, Finite element model, Modeling
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25706
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
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0389
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
Publisher: American Society of Mechanical Engineers
Paper No: 2001-GT-0250
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
Publisher: American Society of Mechanical Engineers
Paper No: 2001-GT-0028
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-94203
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

Type Synthesis of Two Degrees-of-Freedom Rotational Parallel Mechanisms With a Fixed Center-of-Rotation Based on a Graphic Approach

K. Wu, J. J. Yu, S. Z. Li, G. H. Zong, Xianwen Kong
Proc. ASME. IDETC-CIE2012, Volume 4: 36th Mechanisms and Robotics Conference, Parts A and B, 647-658, August 12–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: DETC2012-71028
https://doi.org/10.1115/DETC2012-71028
View Paper titled, Type Synthesis of Two Degrees-of-Freedom Rotational Parallel Mechanisms With a Fixed Center-of-Rotation Based on a Graphic Approach
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Topics: Degrees of freedom, Parallel mechanisms, Rotation, Space, Dynamic stability, Topology
Proceedings Papers

A Compliance-Based Compensation Approach for Designing High-Precision Flexure Mechanism

S. Z. Li, J. J. Yu, G. H. Zong, Hai-jun Su
Proc. ASME. IDETC-CIE2012, Volume 4: 36th Mechanisms and Robotics Conference, Parts A and B, 293-301, August 12–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: DETC2012-71018
https://doi.org/10.1115/DETC2012-71018
View Paper titled, A Compliance-Based Compensation Approach for Designing High-Precision Flexure Mechanism
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Topics: Design, Flexure mechanisms, Rotation, Degrees of freedom, Design methodology, Errors, Finite element analysis, Motion compensation, Simulation
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-68061
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

Mobility and Singularity Analysis of a Class of 2-DOF Rotational Parallel Mechanisms Using a Visual Graphic Approach

J. J. Yu, X. Dong, X. Pei, G. H. Zong, Xianwen Kong, Qunxian Qiu
Proc. ASME. IDETC-CIE2011, Volume 6: 35th Mechanisms and Robotics Conference, Parts A and B, 1027-1036, August 28–31, 2011
Publisher: American Society of Mechanical Engineers
Paper No: DETC2011-48274
https://doi.org/10.1115/DETC2011-48274
View Paper titled, Mobility and Singularity Analysis of a Class of 2-DOF Rotational Parallel Mechanisms Using a Visual Graphic Approach
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Topics: Mechanical admittance, Parallel mechanisms, Architecture, Degrees of freedom, Kinematics, Screws, Systems theory
Proceedings Papers

Synthesis of Actuation Spaces of Multi-Axis Parallel Flexure Mechanisms Based on Screw Theory

C. Qiu, J. J. Yu, S. Z. Li, Hai-jun Su, Y. Z. Zeng
Proc. ASME. IDETC-CIE2011, Volume 6: 35th Mechanisms and Robotics Conference, Parts A and B, 181-190, August 28–31, 2011
Publisher: American Society of Mechanical Engineers
Paper No: DETC2011-48252
https://doi.org/10.1115/DETC2011-48252
View Paper titled, Synthesis of Actuation Spaces of Multi-Axis Parallel Flexure Mechanisms Based on Screw Theory
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Topics: Flexure mechanisms, Screws, Space, Actuators, Bending (Stress), Design
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45153
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
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2012, 134(1): 012505.
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

Type Synthesis Principle and Practice of Flexure Systems in the Framework of Screw Theory: Part II—Numerations and Synthesis of Complex Flexible Joints

J. J. Yu, X. Pei, S. Z. Li, Hai-jun Su, J. B. Hopkins, M. L. Culpepper
Proc. ASME. IDETC-CIE2010, Volume 2: 34th Annual Mechanisms and Robotics Conference, Parts A and B, 553-561, August 15–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: DETC2010-28794
https://doi.org/10.1115/DETC2010-28794
View Paper titled, Type Synthesis Principle and Practice of Flexure Systems in the Framework of Screw Theory: Part II—Numerations and Synthesis of Complex Flexible Joints
Open the PDF for Type Synthesis Principle and Practice of Flexure Systems in the Framework of Screw Theory: Part II—Numerations and Synthesis of Complex Flexible Joints in another window
Topics: Bending (Stress), Screws, Design, Displacement, Modeling, Universal joints