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Andreas Hohl
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Proceedings Papers

Estimation of High-Frequency Vibration Loads in Deep Drilling Systems Using Augmented Kalman Filters

Mohamed Ichaoui, Georg-Peter Ostermeyer, Mathias Tergeist, Andreas Hohl
Proc. ASME. IMECE2020, Volume 7A: Dynamics, Vibration, and Control, V07AT07A047, November 16–19, 2020
Paper No: IMECE2020-23824
DOI: https://doi.org/10.1115/IMECE2020-23824
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Topics: Drilling, Kalman filters, Stress, Vibration
Proceedings Papers

Semi-Analytical Approach for Derivation of an Equivalent Modal Friction-Damping Ratio and its Application in a Self-Excited Drilling System

Vincent Kulke, Georg-Peter Ostermeyer, Mathias Tergeist, Andreas Hohl
Proc. ASME. IMECE2019, Volume 4: Dynamics, Vibration, and Control, V004T05A080, November 11–14, 2019
Paper No: IMECE2019-10576
DOI: https://doi.org/10.1115/IMECE2019-10576
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Topics: Damping, Drilling, Friction, Dampers, Drill strings, Engineering simulation, Mode shapes, Oscillations, Simulation, Stability
Journal Articles

A Method to Reduce the Energy Localization in Mistuned Bladed Disks by Application-Specific Blade Pattern Arrangement

Andreas Hohl, Jörg Wallaschek
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2016, 138(9): 092502.
Paper No: GTP-15-1546
DOI: https://doi.org/10.1115/1.4032739
Published Online: March 22, 2016
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Topics: Blades, Disks, Resonance
Proceedings Papers

A Combined Analytical and Numerical Approach to Analyze Mud Motor Excited Vibrations in Drilling Systems

Andreas Hohl, Carsten Hohl, Christian Herbig
Proc. ASME. GT2015, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T24A004, June 15–19, 2015
Paper No: GT2015-42144
DOI: https://doi.org/10.1115/GT2015-42144
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Topics: Drilling, Engines, Motors, Vibration, Finite element model, Design, Finite element methods, Rotors, Stress, Cutting
Proceedings Papers

A Method to Reduce the Energy Localization in Mistuned Bladed Disks by Application-Specific Blade Pattern Arrangement

Andreas Hohl, Jörg Wallaschek
Proc. ASME. GT2015, Volume 7B: Structures and Dynamics, V07BT32A023, June 15–19, 2015
Paper No: GT2015-43230
DOI: https://doi.org/10.1115/GT2015-43230
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Topics: Blades, Disks, Engineering simulation, High cycle fatigue, Manufacturing, Resonance, Risk, Simulation, Turbine blades
Proceedings Papers

The Influence of Blade Properties on the Forced Response of Mistuned Bladed Disks

Andreas Hohl, Benedikt Kriegesmann, Jo¨rg Wallaschek, Lars Panning
Proc. ASME. GT2011, Volume 6: Structures and Dynamics, Parts A and B, 1159-1170, June 6–10, 2011
Paper No: GT2011-46826
DOI: https://doi.org/10.1115/GT2011-46826
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Topics: Blades, Disks, High cycle fatigue, Waves, Degrees of freedom, Eigenvalues, Engineering simulation, Simulation, Excitation, Failure
Proceedings Papers

Analysis of the Influence of Blade Pattern Characteristics on the Forced Response of Mistuned Blisks With a Cyclic CMS-Based Substructure Model

Andreas Hohl, Lars Panning, Jo¨rg Wallaschek
Proc. ASME. ESDA2010, ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 5, 443-455, July 12–14, 2010
Paper No: ESDA2010-25294
DOI: https://doi.org/10.1115/ESDA2010-25294
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Topics: Blades, Disks, High cycle fatigue, Waves, Degrees of freedom, Finite element model, Excitation, Failure, Manufacturing, Modal analysis
Proceedings Papers

A Substructure Based Reduced Order Model for Mistuned Bladed Disks

Andreas Hohl, Christian Siewert, Lars Panning, Jo¨rg Wallaschek
Proc. ASME. IDETC-CIE2009, Volume 1: 22nd Biennial Conference on Mechanical Vibration and Noise, Parts A and B, 899-906, August 30–September 2, 2009
Paper No: DETC2009-87459
DOI: https://doi.org/10.1115/DETC2009-87459
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Topics: Disks, Blades, Waves, Degrees of freedom, Modal analysis
Proceedings Papers

Nonlinear Vibration Analysis of Gas Turbine Bladings With Shroud Coupling

Andreas Hohl, Christian Siewert, Lars Panning, Andreas Kayser
Proc. ASME. GT2008, Volume 5: Structures and Dynamics, Parts A and B, 425-433, June 9–13, 2008
Paper No: GT2008-50787
DOI: https://doi.org/10.1115/GT2008-50787
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Topics: Gas turbines, Nonlinear vibration, Vibration, Damping, Dampers, Equations of motion, Excitation, Finite element analysis, Finite element model, Fluids