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Journal Articles

A Computational Study of Temperature-Driven Low Engine Order Forced Response in High Pressure Turbines

Alexander Trafford, Sina Stapelfeldt
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2025, 147(5): 051014.
Paper No: GTP-24-1543
https://doi.org/10.1115/1.4066825
Published Online: November 22, 2024
...Alexander Trafford; Sina Stapelfeldt This paper reports the results of computational studies of the effect of combustor exit temperature distortions on low engine order (LEO) forced response of a high pressure turbine (HPT). Forced response of this kind occurs at frequencies below the stator vane...
View Article titled, A Computational Study of Temperature-Driven Low Engine Order <span class="search-highlight">Forced</span> <span class="search-highlight">Response</span> in High Pressure Turbines
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Topics: Pressure, Temperature, Turbines, Rotors, Blades, Simulation, Engines
Journal Articles

Sensitivity Analysis of Transient Forced Response of Mistuned Bladed Disks Under Complex Excitation and Varying Rotation Speed

Tong Jing, Chaoping Zang, Evgeny Petrov
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2024, 146(3): 031018.
Paper No: GTP-23-1421
https://doi.org/10.1115/1.4063586
Published Online: November 28, 2023
... under transient conditions. The expressions for the sensitivities are derived analytically which provides high accuracy and speed of the calculations. The method has been implemented in a computer code and thoroughly verified using a set of test cases. The studies of transient forced response...
View Article titled, Sensitivity Analysis of Transient <span class="search-highlight">Forced</span> <span class="search-highlight">Response</span> of Mistuned Bladed Disks Under Complex Excitation and Varying Rotation Speed
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Topics: Bladed disks, Blades, Rotation, Transients (Dynamics), Excitation, Rotors
Journal Articles

Effect of System Mode and Structural Damping Perturbation on the Mistuned Forced Response and Aerodynamic Damping of Embedded Compressor Rotors

Shreyas Hegde, Jonathan D. Inge, Robert Kielb
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2023, 145(5): 051004.
Paper No: GTP-22-1389
https://doi.org/10.1115/1.4055832
Published Online: December 20, 2022
...Shreyas Hegde; Jonathan D. Inge; Robert Kielb This paper is a continuation of previous papers by the authors that focuses on predicting the mistuned embedded rotor blade forced response. The compressor under consideration is a part of a 3.5stage rig located at Purdue University. Previously...
View Article titled, Effect of System Mode and Structural Damping Perturbation on the Mistuned <span class="search-highlight">Forced</span> <span class="search-highlight">Response</span> and Aerodynamic Damping of Embedded Compressor Rotors
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Topics: Blades, Compressors, Damping, Flutter (Aerodynamics), Rotors
Journal Articles

Experimental Investigation on the Mechanism of Impeller Synchronous and Nonsynchronous Vibrations in an Industrial Centrifugal Compressor

Hongkun Li, Xinwei Zhao, Qiang Zhou, Shuhua Yang, Xiaowen Zhang
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2022, 144(6): 061014.
Paper No: GTP-21-1560
https://doi.org/10.1115/1.4054257
Published Online: May 20, 2022
... Ingestion Condition ,” Aerosp. Sci. Technol. , 115 , p. 106802 . 10.1016/j.ast.2021.106802 [7] Zemp , A. , Abhari , R. S. , and Ribi , B. , 2011 , “ Experimental Investigation of Forced Response Impeller Blade Vibration in a Centrifugal Compressor With Variable Inlet Guide...
View Article titled, Experimental Investigation on the Mechanism of Impeller Synchronous and Nonsynchronous Vibrations in an Industrial Centrifugal Compressor
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Topics: Blades, Compressors, Impellers, Pressure, Resonance, Rotors, Vibration, Flow (Dynamics)