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Athanasios Chasalevris
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Proceedings Papers

Controlling Chaos in Rotating Systems Applying the OGY Control Method in Active Sliding Bearing Configurations

Ioannis Polyzos, Athanasios Chasalevris
Proc. ASME. IDETC-CIE2024, Volume 9: 20th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC), V009T09A015, August 25–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: DETC2024-137299
https://doi.org/10.1115/DETC2024-137299
View Paper titled, Controlling Chaos in Rotating Systems Applying the OGY Control Method in Active Sliding Bearing Configurations
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Topics: Bearings, Chaos, Dynamics (Mechanics), Rotors, Bifurcation, Design, Geometry, Journal bearings, Machinery, Noise control
Proceedings Papers

Nonlinear Dynamics of Turbine Generator Shaft Trains: Evaluation of Bifurcation Sets Applying Numerical Continuation

Ioannis Gavalas, Athanasios Chasalevris
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT26A005, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80107
https://doi.org/10.1115/GT2022-80107
View Paper titled, Nonlinear Dynamics of Turbine Generator Shaft Trains: Evaluation of Bifurcation Sets Applying Numerical Continuation
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Topics: Bifurcation, Nonlinear dynamics, Trains, Turbogenerators
Journal Articles

Nonlinear Dynamics of Turbine Generator Shaft Trains: Evaluation of Bifurcation Sets Applying Numerical Continuation

Ioannis Gavalas, Athanasios Chasalevris
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2023, 145(1): 011003.
Paper No: GTP-22-1375
https://doi.org/10.1115/1.4055533
Published Online: October 19, 2022
View Articletitled, Nonlinear Dynamics of Turbine Generator Shaft Trains: Evaluation of Bifurcation Sets Applying Numerical Continuation
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Topics: Bearings, Bifurcation, Rotors, Trains, Design, Turbogenerators, Limit cycles, Stability
Journal Articles

Bifurcations of Limit Cycles in Rotating Shafts Mounted on Partial Arc and Lemon Bore Journal Bearings in Elastic Pedestals

Lysandros Anastasopoulos, Athanasios Chasalevris
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. June 2022, 17(6): 061003.
Paper No: CND-21-1257
https://doi.org/10.1115/1.4053593
Published Online: March 14, 2022
View Articletitled, Bifurcations of Limit Cycles in Rotating Shafts Mounted on Partial Arc and Lemon Bore Journal Bearings in Elastic Pedestals
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Topics: Bearings, Bifurcation, Limit cycles, Rotors, Stability, Journal bearings, Design, Bearing design
Journal Articles

Analytical Evaluation of the Static and Dynamic Characteristics of Three-Lobe Journal Bearings With Finite Length

Athanasios Chasalevris
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. October 2015, 137(4): 041701.
Paper No: TRIB-14-1251
https://doi.org/10.1115/1.4030023
Published Online: October 1, 2015
View Articletitled, Analytical Evaluation of the Static and Dynamic Characteristics of Three-Lobe Journal Bearings With Finite Length
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Topics: Bearings, Journal bearings, Pressure, Eigenfunctions, Damping, Stiffness, Equilibrium (Physics)
Proceedings Papers

On the Analytical Evaluation of the Lubricant Pressure in the Finite Journal Bearing

Athanasios Chasalevris, Dimitris Sfyris
Proc. ASME. IDETC-CIE2012, Volume 1: 24th Conference on Mechanical Vibration and Noise, Parts A and B, 661-671, August 12–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: DETC2012-70187
https://doi.org/10.1115/DETC2012-70187
View Paper titled, On the Analytical Evaluation of the Lubricant Pressure in the Finite Journal Bearing
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Topics: Journal bearings, Lubricants, Pressure, Bearings, Boundary-value problems, Damping, Differential equations, Separation (Technology), Stiffness, Stress
Journal Articles

A Journal Bearing With Variable Geometry for the Reduction of the Maximum Amplitude During Passage Through Resonance

Athanasios Chasalevris, Fadi Dohnal
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. December 2012, 134(6): 061005.
https://doi.org/10.1115/1.4007242
Published Online: June 20, 2012
View Articletitled, A Journal Bearing With Variable Geometry for the Reduction of the Maximum Amplitude During Passage Through Resonance
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Topics: Bearings, Damping, Displacement, Fluid films, Geometry, Journal bearings, Resonance, Rotors, Stiffness, Vibration
Proceedings Papers

Symptoms of Misaligned Worn Journal Bearings in Rotor Response Under External Excitation by a Magnetic Bearing

Athanasios Chasalevris, Fadi Dohnal, Richard Markert
Proc. ASME. IDETC-CIE2011, Volume 1: 23rd Biennial Conference on Mechanical Vibration and Noise, Parts A and B, 879-884, August 28–31, 2011
Publisher: American Society of Mechanical Engineers
Paper No: DETC2011-47566
https://doi.org/10.1115/DETC2011-47566
View Paper titled, Symptoms of Misaligned Worn Journal Bearings in Rotor Response Under External Excitation by a Magnetic Bearing
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Topics: Excitation, Journal bearings, Magnetic bearings, Rotors, Wear, Actuators, Bearings, Clearances (Engineering), Damping, Fluid films