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Journal Articles

Stator Blades Manufacturing Geometrical Variability in Axial Compressors and Impact on the Aeroelastic Excitation Forces

Marco Gambitta, Arnold Kühhorn, Bernd Beirow, Sven Schrape
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2022, 144(4): 041007.
Paper No: TURBO-21-1172
https://doi.org/10.1115/1.4052602
Published Online: November 5, 2021
View Article titled, Stator Blades Manufacturing Geometrical Variability in Axial Compressors and Impact on the Aeroelastic Excitation Forces
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Topics: Blades, Compressors, Manufacturing, Rotors, Stators, Uncertainty quantification, Geometry, Excitation, Uncertainty
Proceedings Papers

Stator Blades Manufacturing Geometrical Variability in Axial Compressors and Impact on the Aeroelastic Excitation Forces

Marco Gambitta, Arnold Kühhorn, Bernd Beirow, Sven Schrape
Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT36A014, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59642
https://doi.org/10.1115/GT2021-59642
View Paper titled, Stator Blades Manufacturing Geometrical Variability in Axial Compressors and Impact on the Aeroelastic Excitation Forces
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Topics: Blades, Compressors, Excitation, Manufacturing, Stators, Uncertainty, Rotors, Algorithms, Annulus, Design
Journal Articles

Vibration Analyses of an Axial Turbine Wheel With Intentional Mistuning

Bernd Beirow, Arnold Kühhorn, Robby Weber, Frederik Popig
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2021, 143(6): 061027.
Paper No: GTP-20-1403
https://doi.org/10.1115/1.4049449
Published Online: March 31, 2021
View Article titled, Vibration Analyses of an Axial Turbine Wheel With Intentional Mistuning
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Topics: Blades, Damping, Design, Stress, Turbines, Wheels, Flutter (Aerodynamics), Robustness, Computer simulation, Vibration analysis
Journal Articles

Generalized Model for the Approximation of Coupled Acousto-Mechanical Natural Frequencies in High-Pressure Centrifugal Compressors

Christoph Rocky Heinrich, Arnold Kühhorn, Klaus Steff, Nico Petry
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2021, 143(7): 071022.
Paper No: GTP-20-1449
https://doi.org/10.1115/1.4049447
Published Online: March 31, 2021
View Article titled, Generalized Model for the Approximation of Coupled Acousto-Mechanical Natural Frequencies in High-Pressure Centrifugal Compressors
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Topics: Acoustics, Cavities, Compressors, Computer simulation, Fluids, Impellers, Pressure, Finite element model, High pressure (Physics), Finite element analysis
Proceedings Papers

Geometrical Variability Modelling of Axial Compressor Blisk Aerofoils and Evaluation of Impact on the Forced Response Problem

Marco Gambitta, Arnold Kühhorn, Sven Schrape
Proc. ASME. GT2020, Volume 2D: Turbomachinery, V02DT38A028, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16168
https://doi.org/10.1115/GT2020-16168
View Paper titled, Geometrical Variability Modelling of Axial Compressor Blisk Aerofoils and Evaluation of Impact on the Forced Response Problem
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Topics: Airfoils, Compressors, Computational fluid dynamics, Modeling
Proceedings Papers

Influence of Inlet Distortions on the Forced Vibration of a High Pressure Compressor Rig

Falco Franz, Arnold Kühhorn, Thomas Giersch, Felix Figaschewsky, Sven Schrape
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A030, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16221
https://doi.org/10.1115/GT2020-16221
View Paper titled, Influence of Inlet Distortions on the Forced Vibration of a High Pressure Compressor Rig
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Topics: Compressors, High pressure (Physics), Vibration, Engines, Blades, Damping, Excitation, Resonance, Rotors
Proceedings Papers

Investigation of Working Line Variation Onto Forced Response Vibrations of a Compressor Blisk

Seif ElMasry, Arnold Kühhorn, Felix Figaschewsky
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A014, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15145
https://doi.org/10.1115/GT2020-15145
View Paper titled, Investigation of Working Line Variation Onto Forced Response Vibrations of a Compressor Blisk
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Topics: Compressors, Vibration
Proceedings Papers

Correlating and Updating Finite Element Models of Different Fidelity Using an Energy-Based Approach

Alexander Hardenberg, Arnold Kühhorn, Maren Fanter
Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT26A006, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14509
https://doi.org/10.1115/GT2020-14509
View Paper titled, Correlating and Updating Finite Element Models of Different Fidelity Using an Energy-Based Approach
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Topics: Finite element model, Modeling, Errors, Aircraft engines, Kinetic energy, Shells, Turbines, Uncertainty, Computer simulation, Engineers
Proceedings Papers

Vibration Analyses of an Axial Turbine Wheel With Intentional Mistuning

Bernd Beirow, Arnold Kühhorn, Robby Weber, Frederik Popig
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A009, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14468
https://doi.org/10.1115/GT2020-14468
View Paper titled, Vibration Analyses of an Axial Turbine Wheel With Intentional Mistuning
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Topics: Blades, Computer simulation, Damping, Design, Disks, Flow (Dynamics), Flow separation, Flutter (Aerodynamics), Genetic algorithms, Manufacturing
Proceedings Papers

Generalized Model for the Approximation of Coupled Acousto-Mechanical Natural Frequencies in High-Pressure Centrifugal Compressors

Christoph Rocky Heinrich, Arnold Kühhorn, Klaus Steff, Nico Petry
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A025, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15281
https://doi.org/10.1115/GT2020-15281
View Paper titled, Generalized Model for the Approximation of Coupled Acousto-Mechanical Natural Frequencies in High-Pressure Centrifugal Compressors
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Topics: Approximation, Compressors, High pressure (Physics), Cavities, Impellers, Acoustics, Simulation, Compressor impellers, Computer simulation, Design
Proceedings Papers

The Effect of Sand Erosion on a Compressor Blade and its Modal Properties

Robby Weber, Arnold Kühhorn, Thomas Klauke, Sven Schrape
Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT34A001, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14045
https://doi.org/10.1115/GT2020-14045
View Paper titled, The Effect of Sand Erosion on a Compressor Blade and its Modal Properties
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Topics: Blades, Compressors, Erosion, Sands, Engines, Airfoils, Damage, Design, High cycle fatigue, Wear
Proceedings Papers

An Inverse Approach to Identify Tuned Aerodynamic Damping, System Frequencies and Mistuning: Part 3 — Application to Engine Data

Felix Figaschewsky, Arnold Kühhorn, Bernd Beirow, Thomas Giersch, Sven Schrape, Jens Nipkau
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT36A014, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91337
https://doi.org/10.1115/GT2019-91337
View Paper titled, An Inverse Approach to Identify Tuned Aerodynamic Damping, System Frequencies and Mistuning: Part 3 — Application to Engine Data
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Topics: Damping, Engines, Blades, Engineering simulation, Rotors, Simulation, Compressors, Equations of motion, Frequency response, High pressure (Physics)
Proceedings Papers

Prediction of Geometrically Induced Localization Effects Using a Subset of Nominal System Modes

Thomas Maywald, Christoph R. Heinrich, Arnold Kühhorn, Sven Schrape, Thomas Backhaus
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT35A012, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90884
https://doi.org/10.1115/GT2019-90884
View Paper titled, Prediction of Geometrically Induced Localization Effects Using a Subset of Nominal System Modes
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Topics: Blades, Compressors, Design, Disks, Finite element model, Manufacturing, Mode shapes, Rotors, Stiffness, Vibration
Proceedings Papers

Vibration Analysis of a Mistuned Axial Turbine Blisk

Bernd Beirow, Arnold Kühhorn, Felix Figaschewsky, Alfons Bornhorn
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT35A028, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-92047
https://doi.org/10.1115/GT2019-92047
View Paper titled, Vibration Analysis of a Mistuned Axial Turbine Blisk
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Topics: Turbines, Vibration analysis, Blades, Excitation, Computer simulation, Design, Durability, Engineering prototypes, Engines, Genetic algorithms
Journal Articles

Consequences of Borescope Blending Repairs on Modern High Pressure Compressor Blisk Aeroelasticity

Benjamin Hanschke, Arnold Kühhorn, Sven Schrape, Thomas Giersch
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. February 2019, 141(2): 021002.
Paper No: TURBO-18-1028
https://doi.org/10.1115/1.4041672
Published Online: January 16, 2019
View Article titled, Consequences of Borescope Blending Repairs on Modern High Pressure Compressor Blisk Aeroelasticity
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Topics: Blades, Compressors, Damping, Flow (Dynamics), Maintenance, Pressure, Steady state, High pressure (Physics), Aerodynamics, Fluid-dynamic forces
Journal Articles

Mistuning Identification Approach With Focus on High-Speed Centrifugal Compressors

Robby Weber, Arnold Kühhorn
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2019, 141(3): 032507.
Paper No: GTP-18-1286
https://doi.org/10.1115/1.4040999
Published Online: December 3, 2018
View Article titled, Mistuning Identification Approach With Focus on High-Speed Centrifugal Compressors
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Topics: Blades, Compressors, Vibration
Journal Articles

Efficient Generation of Engine Representative Tip Timing Data Based on a Reduced Order Model for Bladed Rotors

Felix Figaschewsky, Benjamin Hanschke, Arnold Kühhorn
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 012503.
Paper No: GTP-18-1339
https://doi.org/10.1115/1.4040748
Published Online: November 14, 2018
View Article titled, Efficient Generation of Engine Representative Tip Timing Data Based on a Reduced Order Model for Bladed Rotors
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Topics: Blades, Deflection, Engines, Probes, Signals, Vibration, Rotors, Uncertainty, Errors, Simulation
Journal Articles

Forced Response Reduction of a Blisk by Means of Intentional Mistuning

Bernd Beirow, Arnold Kühhorn, Felix Figaschewsky, Alfons Bornhorn, Oleg V. Repetckii
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011008.
Paper No: GTP-18-1289
https://doi.org/10.1115/1.4040715
Published Online: September 14, 2018
View Article titled, Forced Response Reduction of a Blisk by Means of Intentional Mistuning
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Topics: Blades, Damping, Engineering prototypes, Excitation, Optimization, Robustness, Magnification, Design, Genetic algorithms, Turbochargers
Proceedings Papers

Multi-Objective Optimization of the Cooling Configuration of a High Pressure Turbine Blade

Frank Wagner, Arnold Kühhorn, Timm Janetzke, Ulf Gerstberger
Proc. ASME. GT2018, Volume 5C: Heat Transfer, V05CT20A001, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75616
https://doi.org/10.1115/GT2018-75616
View Paper titled, Multi-Objective Optimization of the Cooling Configuration of a High Pressure Turbine Blade
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Topics: Cooling, High pressure (Physics), Pareto optimization, Turbine blades, Aircraft engines, Algorithms, Flow (Dynamics), Optimization algorithms, Temperature, Blades
Proceedings Papers

Forced Response Reduction of a Blisk by Means of Intentional Mistuning

Bernd Beirow, Arnold Kühhorn, Felix Figaschewsky, Alfons Bornhorn, Oleg V. Repetckii
Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT35A031, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76584
https://doi.org/10.1115/GT2018-76584
View Paper titled, Forced Response Reduction of a Blisk by Means of Intentional Mistuning
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Topics: Blades, Damping, Engineering prototypes, Engineering simulation, Engines, Excitation, Genetic algorithms, Manufacturing, Optimization, Robustness