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Ahmet Kahraman
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Journal Articles

An Experimental Study on the Accuracy of Cumulative Damage Models in Gear Tooth Bending Fatigue

Gabriel Anichowski, Riley Damm, Ahmet Kahraman, Isaac Hong
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. July 2024, 146(3): 031007.
Paper No: MATS-23-1224
https://doi.org/10.1115/1.4064605
Published Online: February 12, 2024
View Article titled, An Experimental Study on the Accuracy of Cumulative Damage Models in Gear Tooth Bending Fatigue
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Topics: Cycles, Damage, Fatigue, Stress, Failure, Gear teeth, Testing
Proceedings Papers

An Experimental Investigation of the Effects of Lubrication on Rattling Motions and Noise of a Gear Pair

Ata Donmez, Ahmet Kahraman, Michael Handschuh, Michael O’Toole
Proc. ASME. IDETC-CIE2023, Volume 11: 2023 International Power Transmission and Gearing Conference (PTG), V011T11A014, August 20–23, 2023
Publisher: American Society of Mechanical Engineers
Paper No: DETC2023-117076
https://doi.org/10.1115/DETC2023-117076
View Paper titled, An Experimental Investigation of the Effects of Lubrication on Rattling Motions and Noise of a Gear Pair
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Topics: Gears, Lubrication, Noise (Sound), Fluctuations (Physics), Lubricants, Acoustics, Damping, Gear teeth, Industrial lubrication systems, Machinery
Proceedings Papers

Acoustic Emission Damage Parameter for Cumulative Fatigue Damage Prediction in Gear Single Tooth Bending Fatigue

Gabriel Anichowski, Ahmet Kahraman, Isaac Hong
Proc. ASME. IDETC-CIE2023, Volume 11: 2023 International Power Transmission and Gearing Conference (PTG), V011T11A008, August 20–23, 2023
Publisher: American Society of Mechanical Engineers
Paper No: DETC2023-116788
https://doi.org/10.1115/DETC2023-116788
View Paper titled, Acoustic Emission Damage Parameter for Cumulative Fatigue Damage Prediction in Gear Single Tooth Bending Fatigue
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Topics: Acoustic emissions, Damage, Fatigue, Fatigue damage, Gears, Stress, Cycles, Design, Fatigue testing, Aerospace industry
Proceedings Papers

An Experimental Study on the Accuracy of Cumulative Damage Models in Gear Tooth Bending Fatigue

Gabriel Anichowski, Riley Damm, Ahmet Kahraman, Isaac Hong
Proc. ASME. IDETC-CIE2023, Volume 11: 2023 International Power Transmission and Gearing Conference (PTG), V011T11A009, August 20–23, 2023
Publisher: American Society of Mechanical Engineers
Paper No: DETC2023-116926
https://doi.org/10.1115/DETC2023-116926
View Paper titled, An Experimental Study on the Accuracy of Cumulative Damage Models in Gear Tooth Bending Fatigue
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Topics: Damage, Fatigue, Gear teeth, Stress, Gears, Failure, Cycles, Design, Fatigue failure, Fatigue life
Proceedings Papers

A Generalized Torsional Dynamics Formulation for Multi-Mesh Gear Trains With Clearances and Torque Fluctuations

Ata Donmez, Ahmet Kahraman
Proc. ASME. IDETC-CIE2022, Volume 9: 18th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC), V009T09A024, August 14–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: DETC2022-88988
https://doi.org/10.1115/DETC2022-88988
View Paper titled, A Generalized Torsional Dynamics Formulation for Multi-Mesh Gear Trains With Clearances and Torque Fluctuations
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Topics: Dynamics (Mechanics), Fluctuations (Physics), Gear trains, Torque
Journal Articles

Vibro-Impact Motions of a Three-Degree-of-Freedom Geartrain Subjected to Torque Fluctuations: Model and Experiments

Ata Donmez, Ahmet Kahraman
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. December 2022, 17(12): 121002.
Paper No: CND-22-1106
https://doi.org/10.1115/1.4055595
Published Online: October 7, 2022
View Article titled, Vibro-Impact Motions of a Three-Degree-of-Freedom Geartrain Subjected to Torque Fluctuations: Model and Experiments
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Topics: Fluctuations (Physics), Gears, Torque, Excitation
Journal Articles

A Rattle Noise Severity Index for Multi-Mesh Gear Trains Subjected to Torque Fluctuations

Ata Donmez, Ahmet Kahraman
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. February 2023, 145(1): 011007.
Paper No: VIB-22-1154
https://doi.org/10.1115/1.4055134
Published Online: September 13, 2022
View Article titled, A Rattle Noise Severity Index for Multi-Mesh Gear Trains Subjected to Torque Fluctuations
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Topics: Fluctuations (Physics), Gear trains, Gears, Noise (Sound), Sound pressure, Torque, Dynamic models, Dynamics (Mechanics)
Journal Articles

Characterization of Nonlinear Rattling Behavior of a Gear Pair Through a Validated Torsional Model

Ata Donmez, Ahmet Kahraman
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. April 2022, 17(4): 041006.
Paper No: CND-21-1275
https://doi.org/10.1115/1.4053367
Published Online: February 14, 2022
View Article titled, Characterization of Nonlinear Rattling Behavior of a Gear Pair Through a Validated Torsional Model
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Topics: Gears, Torque, Excitation, Fluctuations (Physics), Damping
Journal Articles

Experimental and Theoretical Investigation of Vibro-impact Motions of a Gear Pair Subjected to Torque Fluctuations to Define a Rattle Noise Severity Index

Ata Donmez, Ahmet Kahraman
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. August 2022, 144(4): 041001.
Paper No: VIB-21-1320
https://doi.org/10.1115/1.4053264
Published Online: January 13, 2022
View Article titled, Experimental and Theoretical Investigation of Vibro-impact Motions of a Gear Pair Subjected to Torque Fluctuations to Define a Rattle Noise Severity Index
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Topics: Fluctuations (Physics), Gears, Noise (Sound), Sound pressure, Torque
Proceedings Papers

Effect of Axial Vibrations on the Dynamics of a Helical Gear Pair

Ahmet Kahraman
Proc. ASME. DETC91, 13th Biennial Conference on Mechanical Vibration and Noise: Machinery Dynamics and Element Vibrations, 83-89, September 22–25, 1991
Publisher: American Society of Mechanical Engineers
Paper No: DETC1991-0279
https://doi.org/10.1115/DETC1991-0279
View Paper titled, Effect of Axial Vibrations on the Dynamics of a Helical Gear Pair
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Topics: Dynamics (Mechanics), Helical gears, Vibration, Bearings, Errors, Gears, Dynamic models, Mode shapes, Rotation
Proceedings Papers

Dynamic Analysis of a Multi-Mesh Helical Gear Train

Ahmet Kahraman
Proc. ASME. DETC92, 6th International Power Transmission and Gearing Conference: Advancing Power Transmission Into the 21st Century, 365-373, September 13–16, 1992
Publisher: American Society of Mechanical Engineers
Paper No: DETC1992-0046
https://doi.org/10.1115/DETC1992-0046
View Paper titled, Dynamic Analysis of a Multi-Mesh Helical Gear Train
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Topics: Dynamic analysis, Helical gears, Trains, Gears, Gear trains, Bearings, Dynamic models, Errors, Excitation
Proceedings Papers

Effect of Internal Gear Flexibility on the Quasi-Static Behavior of a Planetary Gear Set

Ahmet Kahraman, Sandeep Vijayakar
Proc. ASME. IDETC-CIE2000, Volume 6: 8th International Power Transmission and Gearing Conference, 47-56, September 10–13, 2000
Publisher: American Society of Mechanical Engineers
Paper No: DETC2000/PTG-14364
https://doi.org/10.1115/DETC2000/PTG-14364
View Paper titled, Effect of Internal Gear Flexibility on the Quasi-Static Behavior of a Planetary Gear Set
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Topics: Gears, Planetary gears, Stress, Bending (Stress), Contact mechanics, Deflection, Deformation, Design, Finite element methods, Finite element model
Journal Articles

An Experimental Evaluation of High-Cycle Gear Tooth Bending Fatigue Lives Under Fully Reversed and Fully Released Loading Conditions With Application to Planetary Gear Sets

Isaac J. Hong, Ahmet Kahraman, Neil Anderson
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. February 2021, 143(2): 023402.
Paper No: MD-20-1174
https://doi.org/10.1115/1.4047687
Published Online: August 18, 2020
View Article titled, An Experimental Evaluation of High-Cycle Gear Tooth Bending Fatigue Lives Under Fully Reversed and Fully Released Loading Conditions With Application to Planetary Gear Sets
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Topics: Cycles, Fatigue, Gears, Planetary gears, Stress, Gear teeth, Fatigue testing
Journal Articles

In Memoriam: Veniamin I. Goldfarb

Ahmet Kahraman, Alex Kapelevich, Mohsen Kolivand
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Obituary
J. Mech. Des. April 2020, 142(4): 040101.
Paper No: MD-19-1833
https://doi.org/10.1115/1.4046064
Published Online: February 28, 2020
View Article titled, In Memoriam: Veniamin I. Goldfarb
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Topics: Engineering teachers, Gears
Proceedings Papers

A Methodology to Experimentally Investigate the Impact of Wobble Errors on the Contact Pattern and Static Transmission Error of Helical Gear Pairs

Michael Benatar, Michael Handschuh, Ahmet Kahraman, David Talbot
Proc. ASME. IDETC-CIE2019, Volume 10: 2019 International Power Transmission and Gearing Conference, V010T11A025, August 18–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-98391
https://doi.org/10.1115/DETC2019-98391
View Paper titled, A Methodology to Experimentally Investigate the Impact of Wobble Errors on the Contact Pattern and Static Transmission Error of Helical Gear Pairs
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Topics: Errors, Helical gears, Gears, Manufacturing, Data acquisition, Data collection, Design, Durability, Fatigue life, Machinery
Proceedings Papers

A Load Distribution Model for Double-Planet Planetary Gear Sets

Yong Hu, David Talbot, Ahmet Kahraman
Proc. ASME. IDETC-CIE2019, Volume 10: 2019 International Power Transmission and Gearing Conference, V010T11A014, August 18–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-98512
https://doi.org/10.1115/DETC2019-98512
View Paper titled, A Load Distribution Model for Double-Planet Planetary Gear Sets
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Topics: Planetary gears, Stress, Errors, Gears, Manufacturing, Bearings, Gear teeth, Kinematics, Stiffness
Proceedings Papers

Power Loss Measurements of Rolling Element Bearings Subject to Combined Radial and Axial Loads

Kevin Vedera, Isaac Hong, David Talbot, Ahmet Kahraman, Sen Zhou
Proc. ASME. IDETC-CIE2019, Volume 10: 2019 International Power Transmission and Gearing Conference, V010T11A040, August 18–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-97438
https://doi.org/10.1115/DETC2019-97438
View Paper titled, Power Loss Measurements of Rolling Element Bearings Subject to Combined Radial and Axial Loads
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Topics: Rolling bearings, Stress, Bearings, Gears, Machinery, Automotive transmissions, Lubrication, Mechanical drives, Temperature
Proceedings Papers

An Experimental Investigation of the Impact of Random Spacing Errors on the Dynamic Transmission Error of Spur Gear Pairs

Muhammad Nevin Anandika, Ahmet Kahraman, David Talbot
Proc. ASME. IDETC-CIE2019, Volume 10: 2019 International Power Transmission and Gearing Conference, V010T11A024, August 18–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-98357
https://doi.org/10.1115/DETC2019-98357
View Paper titled, An Experimental Investigation of the Impact of Random Spacing Errors on the Dynamic Transmission Error of Spur Gear Pairs
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Topics: Errors, Spur gears, Gears, Vibration, Manufacturing, Noise (Sound), Resonance, Durability, Dynamics (Mechanics), Excitation
Journal Articles

A Gear Load Distribution Model for a Planetary Gear Set With a Flexible Ring Gear Having External Splines

Yong Hu, David Talbot, Ahmet Kahraman
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. May 2019, 141(5): 053301.
Paper No: MD-18-1604
https://doi.org/10.1115/1.4041583
Published Online: January 11, 2019
View Article titled, A Gear Load Distribution Model for a Planetary Gear Set With a Flexible Ring Gear Having External Splines
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Topics: Gears, Stress, Planetary gears, Splines
Proceedings Papers

Dynamic Transmission Error Measurements From Spur Gear Pairs Having Tooth Indexing Errors

Brian Anichowski, Jr., Ahmet Kahraman, David Talbot
Proc. ASME. IDETC-CIE2017, Volume 10: 2017 ASME International Power Transmission and Gearing Conference, V010T11A017, August 6–9, 2017
Publisher: American Society of Mechanical Engineers
Paper No: DETC2017-67314
https://doi.org/10.1115/DETC2017-67314
View Paper titled, Dynamic Transmission Error Measurements From Spur Gear Pairs Having Tooth Indexing Errors
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Topics: Errors, Indexing (Machining), Spur gears, Gears, Transients (Dynamics), Accelerometers, Dynamic response, Measurement systems, Resonance