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Journal Articles

Application of Interface Reduction Methods to Rotordynamic Casing Models

Martin Paehr, Lars Panning-von Scheidt
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2025, 147(5): 051019.
Paper No: GTP-24-1605
https://doi.org/10.1115/1.4066606
Published Online: November 22, 2024
View Articletitled, Application of Interface Reduction Methods to Rotordynamic Casing Models
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Topics: Damping, Friction, Manufacturing, Rotors, Polynomials, Stiffness, Bearings, Eigenvalues, Equations of motion, Excitation
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 Articletitled, 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 Articletitled, 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 Articletitled, 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 Articletitled, 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 Articletitled, 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 Articletitled, 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 Articletitled, 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 Articletitled, Analysis of Contacts in Friction Damped Turbine Blades Using Dimensionless Numbers
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Topics: Friction, Turbine blades, Dimensionless numbers, Displacement
Journal Articles

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

Lukas Schwerdt, Sebastian Willeke, 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 2019, 141(5): 052502.
Paper No: GTP-18-1393
https://doi.org/10.1115/1.4041071
Published Online: December 10, 2018
View Articletitled, Reduced-Order Modeling of Bladed Disks Considering Small Mistuning of the Disk Sectors
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Topics: Blades, Disks
Journal Articles

Rotational Speed-Dependent Contact Formulation for Nonlinear Blade Dynamics Prediction

Torsten Heinze, Lars Panning-von Scheidt, Jörg Wallaschek, Andreas Hartung
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2019, 141(4): 042503.
Paper No: GTP-18-1332
https://doi.org/10.1115/1.4040843
Published Online: December 5, 2018
View Articletitled, Rotational Speed-Dependent Contact Formulation for Nonlinear Blade Dynamics Prediction
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Topics: Blades, Disks, Dynamics (Mechanics), Equations of motion, Frequency response, Friction, Interpolation, Stiffness, Errors, Computation
Journal Articles

Influence of Geometric Design Parameters Onto Vibratory Response and High-Cycle Fatigue Safety for Turbine Blades With Friction Damper

Matthias Hüls, 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. April 2019, 141(4): 041022.
Paper No: GTP-18-1290
https://doi.org/10.1115/1.4040732
Published Online: December 4, 2018
View Articletitled, Influence of Geometric Design Parameters Onto Vibratory Response and High-Cycle Fatigue Safety for Turbine Blades With Friction Damper
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Topics: Blades, Chain, Dampers, Design, Friction, High cycle fatigue, Resonance, Stress, Turbine blades, Airfoils
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 Articletitled, 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 Articletitled, 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
Journal Articles

Approximate Solution of the Fokker–Planck Equation for a Multidegree of Freedom Frictionally Damped Bladed Disk 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. January 2019, 141(1): 011004.
Paper No: GTP-18-1279
https://doi.org/10.1115/1.4040740
Published Online: September 14, 2018
View Articletitled, Approximate Solution of the Fokker–Planck Equation for a Multidegree of Freedom Frictionally Damped Bladed Disk Under Random Excitation
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Topics: Disks, Fokker-Planck equation, Random excitation, Approximation, Computation, Differential equations, Probability, Polynomials
Journal Articles

A Taylor Series Expansion Approach for Nonlinear Blade Forced Response Prediction Considering Variable Rotational Speed

Torsten Heinze, Lars Panning-von Scheidt, Jörg Wallaschek, Andreas Hartung
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2017, 139(6): 062503.
Paper No: GTP-16-1466
https://doi.org/10.1115/1.4035286
Published Online: January 24, 2017
View Articletitled, A Taylor Series Expansion Approach for Nonlinear Blade Forced Response Prediction Considering Variable Rotational Speed
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Topics: Blades, Condensation, Disks, Eigenvalues, Engines, Equations of motion, Interpolation, Stiffness, Damping, Dimensions
Journal Articles

On the Interaction of Multiple Traveling Wave Modes in the Flutter Vibrations of Friction-Damped Tuned Bladed Disks

Malte Krack, 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. April 2017, 139(4): 042501.
Paper No: GTP-16-1403
https://doi.org/10.1115/1.4034650
Published Online: October 18, 2016
View Articletitled, On the Interaction of Multiple Traveling Wave Modes in the Flutter Vibrations of Friction-Damped Tuned Bladed Disks
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Topics: Disks, Flutter (Aerodynamics), Friction, Oscillations, Steady state, Traveling waves, Vibration, Waves, Limit cycles
Journal Articles

Transient Amplitude Amplification of Mistuned Blisks

Marius Bonhage, Linus Pohle, 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. November 2015, 137(11): 112502.
Paper No: GTP-15-1024
https://doi.org/10.1115/1.4030278
Published Online: November 1, 2015
View Articletitled, Transient Amplitude Amplification of Mistuned Blisks
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Topics: Degrees of freedom, Resonance, Steady state, Transients (Dynamics), Vibration, Excitation
Journal Articles

Reduced Order Modeling Based on Complex Nonlinear Modal Analysis and Its Application to Bladed Disks With Shroud Contact

Malte Krack, Lars Panning-von Scheidt, Jörg Wallaschek, Christian Siewert, Andreas Hartung
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2013, 135(10): 102502.
Paper No: GTP-13-1187
https://doi.org/10.1115/1.4025002
Published Online: August 30, 2013
View Articletitled, Reduced Order Modeling Based on Complex Nonlinear Modal Analysis and Its Application to Bladed Disks With Shroud Contact
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Topics: Damping, Design, Disks, Excitation, Friction, Modal analysis, Resonance, Vibration, Limit cycles, Optimization
Journal Articles

Eddy Current Damper for Turbine Blading: Electromagnetic Finite Element Analysis and Measurement Results

Jacob Laborenz, Malte Krack, Lars Panning, Jörg Wallaschek, Markus Denk, Pierre-Alain Masserey
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2012, 134(4): 042504.
https://doi.org/10.1115/1.4004734
Published Online: February 1, 2012
View Articletitled, Eddy Current Damper for Turbine Blading: Electromagnetic Finite Element Analysis and Measurement Results
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Topics: Dampers, Damping, Eddies (Fluid dynamics), Finite element analysis, Finite element model, Permanent magnets, Eddy currents (Electricity), Turbines, Copper, Blades