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Proceedings Papers

Rotordynamic Force Coefficients for Three Types of Annular Gas Seals With Inlet Preswirl and High Differential Pressure Ratio

Bugra H. Ertas, Adolfo Delgado, Giuseppe Vannini
Proc. ASME. GT2011, Volume 6: Structures and Dynamics, Parts A and B, 511-522, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45556
https://doi.org/10.1115/GT2011-45556
View Paper titled, Rotordynamic Force Coefficients for Three Types of Annular Gas Seals With Inlet Preswirl and High Differential Pressure Ratio
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Topics: Pressure, Damping, Excitation, Rotors, Testing, Cavities, Clearances (Engineering), Compressors, Dampers, Deflection
Proceedings Papers

Synchronous Response to Rotor Imbalance Using a Damped Gas Bearing

Bugra H. Ertas, Massimo Camatti, Gabriele Mariotti
Proc. ASME. GT2009, Volume 6: Structures and Dynamics, Parts A and B, 725-734, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59273
https://doi.org/10.1115/GT2009-59273
View Paper titled, Synchronous Response to Rotor Imbalance Using a Damped Gas Bearing
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Topics: Gas bearings, Rotors, Bearings, Damping, Ball bearings, Computers, Rotor vibration, Stability, Stiffness, Turbomachinery
Journal Articles

Synchronous Response to Rotor Imbalance Using a Damped Gas Bearing

Bugra H. Ertas, Massimo Camatti, Gabriele Mariotti
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2010, 132(3): 032501.
https://doi.org/10.1115/1.3157097
Published Online: December 1, 2009
View Article titled, Synchronous Response to Rotor Imbalance Using a Damped Gas Bearing
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Topics: Bearings, Damping, Gas bearings, Rotors, Vibration, Stiffness, Ball bearings, Dampers
Proceedings Papers

Compliant Hybrid Journal Bearings Using Integral Wire Mesh Dampers

Bugra H. Ertas
Proc. ASME. GT2008, Volume 5: Structures and Dynamics, Parts A and B, 1215-1226, June 9–13, 2008
Publisher: American Society of Mechanical Engineers
Paper No: GT2008-50984
https://doi.org/10.1115/GT2008-50984
View Paper titled, Compliant Hybrid Journal Bearings Using Integral Wire Mesh Dampers
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Topics: Dampers, Journal bearings, Wire mesh, Bearings, Flow (Dynamics), Fluids, Hydrostatics, Bearing design, Damping, Design
Journal Articles

Compliant Hybrid Journal Bearings Using Integral Wire Mesh Dampers

Bugra H. Ertas
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2009, 131(2): 022503.
https://doi.org/10.1115/1.2967476
Published Online: December 22, 2008
View Article titled, Compliant Hybrid Journal Bearings Using Integral Wire Mesh Dampers
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Topics: Bearings, Dampers, Rotors, Stress, Wire mesh, Journal bearings, Damping, Hydrostatics, Pressure, Bearing design
Proceedings Papers

High-Pressure Pocket Damper Seals: Leakage Rates and Cavity Pressures

Ahmed M. Gamal, Bugra H. Ertas, John M. Vance
Proc. ASME. GT2006, Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B, 1303-1312, May 8–11, 2006
Publisher: American Society of Mechanical Engineers
Paper No: GT2006-90858
https://doi.org/10.1115/GT2006-90858
View Paper titled, High-Pressure Pocket Damper Seals: Leakage Rates and Cavity Pressures
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Topics: Cavities, Dampers, High pressure (Physics), Leakage, Turbomachinery
Proceedings Papers

The Influence of Same-Sign Cross-Coupled Stiffness on Rotordynamics

Bugra H. Ertas, John M. Vance
Proc. ASME. IDETC-CIE2005, Volume 6: 5th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B, and C, 829-840, September 24–28, 2005
Publisher: American Society of Mechanical Engineers
Paper No: DETC2005-84873
https://doi.org/10.1115/DETC2005-84873
View Paper titled, The Influence of Same-Sign Cross-Coupled Stiffness on Rotordynamics
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Topics: Rotordynamics, Stiffness, Carbon capture and storage, Whirls, Machine components, Rotors, Turbomachinery, Axial flow, Bearings, Cycles
Journal Articles

Nonlinear Dynamic Characterization of Oil-Free Wire Mesh Dampers

Bugra H. Ertas, Huageng Luo
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. May 2008, 130(3): 032503.
https://doi.org/10.1115/1.2836744
Published Online: April 3, 2008
View Article titled, Nonlinear Dynamic Characterization of Oil-Free Wire Mesh Dampers
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Topics: Dampers, Damping, Excitation, Stiffness, Wire mesh, Vibration, Transients (Dynamics), Testing
Journal Articles

Rotordynamic Force Coefficients for a New Damper Seal Design

Bugra H. Ertas, John M. Vance
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Papers
J. Tribol. April 2007, 129(2): 365–374.
https://doi.org/10.1115/1.2464138
Published Online: November 3, 2006
View Article titled, Rotordynamic Force Coefficients for a New Damper Seal Design
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Topics: Cavities, Dampers, Damping, Design, Pressure, Rotors, Stiffness, Bearings, Mechanical impedance, Excitation
Journal Articles

High-Pressure Pocket Damper Seals: Leakage Rates and Cavity Pressures

Ahmed M. Gamal, Bugra H. Ertas, John M. Vance
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2007, 129(4): 826–834.
https://doi.org/10.1115/1.2720871
Published Online: September 3, 2006
View Article titled, High-Pressure Pocket Damper Seals: Leakage Rates and Cavity Pressures
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Topics: Blades, Cavities, Dampers, Discharge coefficient, Leakage, Pressure, Rotors, Flow (Dynamics)