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Journal Articles

Reduced Order Modeling of Forced Response in a Multistage Compressor Under Mistuning and Aerocoupling

Niklas Maroldt, Lukas Schwerdt, Ricarda Berger, Lars Panning-von Scheidt, Raimund Rolfes, Jörg Wallaschek, Joerg R. Seume
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2022, 144(11): 111017.
Paper No: GTP-22-1317
https://doi.org/10.1115/1.4055368
Published Online: September 22, 2022
View Article titled, Reduced Order Modeling of Forced Response in a Multistage Compressor Under Mistuning and Aerocoupling
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Topics: Acoustics, Blades, Compressors, Damping, Excitation, Fatigue, Rotors, Stiffness, Vibration, Modeling
Journal Articles

Determining the Influence of Casing Vibrational Behavior on Rotordynamics

Mona Amer, Martin Paehr, Lars Panning-von Scheidt, Joerg R. Seume, Joachim Schmied
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2022, 144(5): 051012.
Paper No: GTP-21-1556
https://doi.org/10.1115/1.4053123
Published Online: February 21, 2022
View Article titled, Determining the Influence of Casing Vibrational Behavior on Rotordynamics
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Topics: Bearings, Compressors, Computer simulation, Damping, Excitation, Manufacturing, Modal analysis, Modeling, Rotordynamics, Rotors
Journal Articles

Single Nodal Diameter Excitation of Turbine Blades: Experimental and Theoretical Study

Thomas Hoffmann, Lars Panning-von Scheidt, Jörg Wallaschek
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2021, 143(9): 091028.
Paper No: GTP-21-1129
https://doi.org/10.1115/1.4051172
Published Online: August 11, 2021
View Article titled, Single Nodal Diameter Excitation of Turbine Blades: Experimental and Theoretical Study
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Topics: Disks, Excitation, Blades, Turbine blades
Journal Articles

A Model Reduction Method for Bladed Disks With Large Geometric Mistuning Using a Partially Reduced Intermediate System Model

Lukas Schwerdt, Lars Panning-von Scheidt, Jörg Wallaschek
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2021, 143(7): 071031.
Paper No: GTP-20-1571
https://doi.org/10.1115/1.4049357
Published Online: March 31, 2021
View Article titled, A Model Reduction Method for Bladed Disks With Large Geometric Mistuning Using a Partially Reduced Intermediate System Model
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Topics: Blades, Compressors, Disks, Modal analysis, Prisms (Optics), Errors, Maintenance, Simulation, Damage, Finite element analysis
Journal Articles

Equivalent Linearization of Bladed Disk Assemblies With Friction Nonlinearities Under Random Excitation

Alwin Förster, Lars Panning-von Scheidt, Jörg Wallaschek
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2021, 143(5): 051005.
Paper No: GTP-20-1396
https://doi.org/10.1115/1.4048407
Published Online: March 11, 2021
View Article titled, Equivalent Linearization of Bladed Disk Assemblies With Friction Nonlinearities Under Random Excitation
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Topics: Coulombs, Disks, Excitation, Friction, Manufacturing, Random excitation, Displacement, Errors, Energy dissipation, Turbomachinery
Journal Articles

Key Features of the Transient Amplification of Mistuned Systems

Luigi Carassale, Vincent Denoël, Carlos Martel, Lars Panning-von Scheidt
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2021, 143(3): 031016.
Paper No: GTP-20-1517
https://doi.org/10.1115/1.4049501
Published Online: February 11, 2021
View Article titled, Key Features of the Transient Amplification of Mistuned Systems
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Topics: Disks, Resonance, Transients (Dynamics), Blades, Vibration
Journal Articles

Measured and Simulated Forced Response of a Rotating Turbine Disk With Asymmetric and Cylindrical Underplatform Dampers

Thomas Hoffmann, Lars Panning-von Scheidt, Jörg Wallaschek
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2020, 142(5): 051002.
Paper No: GTP-19-1297
https://doi.org/10.1115/1.4045337
Published Online: February 14, 2020
View Article titled, Measured and Simulated Forced Response of a Rotating Turbine Disk With Asymmetric and Cylindrical Underplatform Dampers
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Topics: Blades, Dampers, Disks, Excitation, Turbines, Rotation, Resonance, Simulation, Dynamics (Mechanics), Frequency response
Journal Articles

Analysis of Contacts in Friction Damped Turbine Blades Using Dimensionless Numbers

Thomas Hoffmann, Lars Panning-von Scheidt, Jörg Wallaschek
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2019, 141(12): 121023.
Paper No: GTP-19-1188
https://doi.org/10.1115/1.4044481
Published Online: November 20, 2019
View Article titled, Analysis of Contacts in Friction Damped Turbine Blades Using Dimensionless Numbers
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Topics: Friction, Turbine blades, Dimensionless numbers, Displacement
Journal Articles

Intentional Response Reduction by Harmonic Mistuning of Bladed Disks With Aerodynamic Damping

Sebastian Willeke, Lukas Schwerdt, Lars Panning-von Scheidt, Jörg Wallaschek
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 121010.
Paper No: GTP-18-1292
https://doi.org/10.1115/1.4040898
Published Online: October 24, 2018
View Article titled, Intentional Response Reduction by Harmonic Mistuning of Bladed Disks With Aerodynamic Damping
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Topics: Blades, Damping, Disks
Journal Articles

Rig and Engine Validation of the Nonlinear Forced Response Analysis Performed by the Tool OrAgL

Andreas Hartung, Hans-Peter Hackenberg, Malte Krack, Johann Gross, Torsten Heinze, Lars Panning-von Scheidt
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2019, 141(2): 021019.
Paper No: GTP-18-1414
https://doi.org/10.1115/1.4041160
Published Online: October 4, 2018
View Article titled, Rig and Engine Validation of the Nonlinear Forced Response Analysis Performed by the Tool OrAgL
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Topics: Blades, Engines, Excitation, Resonance, Vibration, Dampers, Simulation, Friction, Disks
Proceedings Papers

Approximate Solution of the Fokker-Planck Equation for a Multi-Degree of Freedom Frictionally Damped Bladed Disk Under Random Excitation

Alwin Förster, Lars Panning-von Scheidt, Jörg Wallaschek
Proc. ASME. GT2018, Volume 7A: Structures and Dynamics, V07AT32A002, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75755
https://doi.org/10.1115/GT2018-75755
View Paper titled, Approximate Solution of the Fokker-Planck Equation for a Multi-Degree of Freedom Frictionally Damped Bladed Disk Under Random Excitation
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Topics: Disks, Fokker-Planck equation, Random excitation, Excitation, Density, Finite element methods, Air flow, Blades, Computation, Degrees of freedom
Proceedings Papers

Rotational Speed-Dependent Contact Formulation for Nonlinear Blade Dynamics Prediction

Torsten Heinze, Lars Panning-von Scheidt, Jörg Wallaschek, Andreas Hartung
Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT35A006, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75290
https://doi.org/10.1115/GT2018-75290
View Paper titled, Rotational Speed-Dependent Contact Formulation for Nonlinear Blade Dynamics Prediction
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Topics: Blades, Dynamics (Mechanics), Algorithms, Approximation, Computation, Disks, Errors, Frequency response, Friction, Stiffness
Proceedings Papers

Influence of Geometric Design Parameters Onto Vibratory Response and HCF Safety for Turbine Blades With Friction Damper

Matthias Hüls, Lars Panning-von Scheidt, Jörg Wallaschek
Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT35A008, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75363
https://doi.org/10.1115/GT2018-75363
View Paper titled, Influence of Geometric Design Parameters Onto Vibratory Response and HCF Safety for Turbine Blades With Friction Damper
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Topics: Dampers, Design, Friction, High cycle fatigue, Safety, Turbine blades, Blades, Resonance, Damping, Stress
Proceedings Papers

Intentional Response Reduction by Harmonic Mistuning of Bladed Disks With Aerodynamic Damping

Sebastian Willeke, Lukas Schwerdt, Lars Panning-von Scheidt, Jörg Wallaschek
Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT35A032, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76601
https://doi.org/10.1115/GT2018-76601
View Paper titled, Intentional Response Reduction by Harmonic Mistuning of Bladed Disks With Aerodynamic Damping
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Topics: Damping, Disks, Blades, Mode shapes, Separation (Technology), Standing waves, Traveling waves, Wave packets
Proceedings Papers

Rig and Engine Validation of the Non-Linear Forced Response Analysis Performed by the Tool OrAgL

Andreas Hartung, Hans-Peter Hackenberg, Malte Krack, Johann Gross, Torsten Heinze, Lars Panning-von Scheidt
Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT35A003, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75186
https://doi.org/10.1115/GT2018-75186
View Paper titled, Rig and Engine Validation of the Non-Linear Forced Response Analysis Performed by the Tool OrAgL
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Topics: Engines, Friction, Simulation, Blades, Dampers, Disks, Modeling, Nonlinear vibration, Stiffness, Temperature
Proceedings Papers

Reduced-Order Modeling of Bladed Disks Considering Small Mistuning of the Disk Sectors

Lukas Schwerdt, Sebastian Willeke, Lars Panning-von Scheidt, Jörg Wallaschek
Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT35A033, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76610
https://doi.org/10.1115/GT2018-76610
View Paper titled, Reduced-Order Modeling of Bladed Disks Considering Small Mistuning of the Disk Sectors
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Topics: Disks, Modeling, Blades, Stiffness, Waves
Proceedings Papers

Numerical and Experimental Study of Shrouded Blade Dynamics Considering Variable Operating Points

Ferhat Kaptan, Lars Panning-von Scheidt, Jörg Wallaschek
Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT35A034, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76692
https://doi.org/10.1115/GT2018-76692
View Paper titled, Numerical and Experimental Study of Shrouded Blade Dynamics Considering Variable Operating Points
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Topics: Blades, Dynamics (Mechanics), Disks, Vibration, Mechanical properties, Pressure, Turbomachinery, Computation, Design engineering, Excitation
Proceedings Papers

Investigations on Transient Amplitude Amplification by Applying Intentional Mistuning

Klaus-Dieter Schlesier, Lars Panning-von Scheidt, Jörg Wallaschek
Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT35A011, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75514
https://doi.org/10.1115/GT2018-75514
View Paper titled, Investigations on Transient Amplitude Amplification by Applying Intentional Mistuning
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Topics: Transients (Dynamics), Resonance, Acoustics, Blades, Energy generation, Engineering simulation, Excitation, Simulation, Vibration
Journal Articles

Combined Airfoil and Snubber Design Optimization of Turbine Blades With Respect to Friction Damping

Matthias Hüls, Lars Panning-von Scheidt, Jörg Wallaschek
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. August 2018, 140(8): 081007.
Paper No: TURBO-18-1048
https://doi.org/10.1115/1.4040679
Published Online: July 26, 2018
View Article titled, Combined Airfoil and Snubber Design Optimization of Turbine Blades With Respect to Friction Damping
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Topics: Airfoils, Blades, Damping, Design, Friction, Resonance, Optimization, Stiffness, Turbine blades, Chain
Proceedings Papers

Nodal Diameter-Dependent Modal Damping Method for Nonlinear Blade Dynamics Prediction Considering Variable Rotational Speed

Torsten Heinze, Lars Panning-von Scheidt, Jörg Wallaschek, Andreas Hartung
Proc. ASME. GT2017, Volume 7B: Structures and Dynamics, V07BT35A018, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63999
https://doi.org/10.1115/GT2017-63999
View Paper titled, Nodal Diameter-Dependent Modal Damping Method for Nonlinear Blade Dynamics Prediction Considering Variable Rotational Speed
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Topics: Blades, Damping, Dynamics (Mechanics), Degrees of freedom, Excitation, Disks, Equations of motion, Friction, Vibration analysis