Subproject C3 Regeneration-induced Mistuning (finished 2017)

In the subproject C3 the mistuning of the disk part of a blisk is considered in the reduction method developed within the first funding period in order to account for realistic dynamic properties of the blisk due to regeneration-induced disturbances of the rotational symmetry. This gives rise to a possible reduction of blade vibration amplitudes by an intentional mistuning of the disk part instead of an intentional mistuning of the blade part of the blisk. In order to predict the realistic vibrational behavior, the influence of the temperature and the aerodynamical interblade coupling is considered in the simulation model. With a modified rotating test rig, the necessary model parameters will be identified and a validation of the simulation results is conducted.

PUBLICATIONS

International Scientific Journal Paper, peer-reviewed

  • L.; Tatzko, S.; Panning-von Scheidt, L.; Wallaschek, J. (2018): High order sensitivity analysis of a mistuned blisk including intentional mistuning Journal of Theoretical and Applied Mechanics 55 (1), 353-368
    DOI: 10.15632/jtam-pl.55.1.353
  • Rogge T.; Berger, R.; Pohle, L.; Rolfes, R.; Wallaschek, J. (2018): Efficient structural analysis of gas turbine bladesAircraft Eng & Aerospace Tech (Aircraft Engineering and Aerospace Technology) 90 (9), S. 1305–1316
    DOI: 10.1108/AEAT-05-2016-0085
  • Hohl A.; Wallaschek, J. (2016): A Method to Reduce the Energy Localization in Mistuned Bladed Disks by Application-Specific Blade Pattern ArrangementJ. Eng. Gas Turbines Power 138 (9), S. 092502
    DOI: 10.1115/1.4032739
  • Bonhage, M.; Pohle, L.; Panning-von Scheidt, L.; Wallaschek, J. (2015): Transient Amplitude Amplification of Mistuned Blisks BonhageJ. Eng. Gas Turbines Power 137 (11), S. 1125-02
    DOI: 10.1115/1.4030278

International Conference Paper, peer-reviewed

  • Schwerdt, L.; Berger, R.; Keller, C.; Seume, J.; Rolfes, R.; Panning-von Scheidt, L.; Wallaschek, J. (2017): Influence of Blade Repairs on Compressor Blisk Vibration considering Aerodynamic Damping and MistuningGPPS (Hg.): Proceedings of Global Power and Propulsion Society Conference. Shanghai
  • Willeke, S.; Keller, C.; Panning-von Scheidt, L.; Seume, J.; Wallaschek, J. (2017): Reduced Order Modeling of Mistuned Bladed Disks Considering Aerodynamic Coupling and Mode Family InteractionIn: Proceedings of 12th European Conference on Turbomachinery Fluid Dynamics & Thermodynamics (ETC12), April 3-7, Stockholm, Sweden, ETC2017-242
  • Schwerdt, L.; Hauptmann, T.; Kunin, A.; Wallaschek, J.; Wriggers, P.; Panning-von Scheidt, L. et al. (2016): Aerodynamical and Strucutral Analysis of Operationally used Turbine BladesIn: 5th International Conference on Through-life Engineering Services, Cranfield, England
  • Pohle, L.; Panning-von Scheidt, L.; Wallaschek, J.; Aschenbruck, J.; Seume, J. R. (2014): Dynamic Behavior of a Mistuned Air Turbine: Comparison Between Simulations and MeasurementsProceedings of ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. Düsseldorf, Germany, S. V07BT33A015
    DOI: 10.1115/GT2014-26025
  • Aschenbruck, J.; Meinzer, C.; Pohle, L.; Panning-von Scheidt, L.; Seume, J. R. (2013): Regeneration-Induced Forced Response in Axial TurbinesASME Turbo Expo 2013Turbine Technical Conference and Exposition, June 3-7, 2013, San Antonio, Texas, USA. San Antonio, Texas, USA, S. V07BT33A010
    DOI: 10.1115/GT2013-95431
  • Hohl, A.; Kriegesmann, B.; Wallaschek, J.; Panning-von Scheidt, L. (2011): The Influence of Blade Properties on the Forced Response of Mistuned Bladed DisksASME 2011 Turbo Expo: Turbine Technical Conference and Exposition, S. 1159–1170
    DOI: 10.1115/GT2011-46826

International Conference Paper, not peer-reviewed

  • Pohle, L.; Panning-von Scheidt, L.; Wallaschek, J. (2012): Reduced Order Model of Mistuned Bladed Disks Using the Krylov-Subspace Combined with the Craig-Bamton Reduction TechniqueIn Proceedings of the 10th World Congress on Computational Mechanics: Blucher Mechanical Engineering Proceedings, S. 899–908
    DOI: 10.5151/meceng-wccm2012-18187

Dissertationen

  • Pohle, L. (2017): Schwingungsverhalten verstimmter zyklischer Systeme und deren Optimierung durch bewusste VerstimmungBerichte aus dem IDS, Band 02/2017, PZH Verlag
    ISBN: 978-3-95900-132-8
  • Hohl, A. (2015): Modellierung zyklischer Strukturen mit Unsicherheiten und theoretische Betrachtung der Energielokalisierung in verstimmten SchaufelkränzenBerichte aus dem IDS, Band 01/2015, PZH Verlag
    ISBN: 978-3-95900-009-3
All publications of the Collaborative Research Centre  

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