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Collaborative Research Centre 871: Regeneration of Complex Capital Goods
 
SFB 871 Research Preoject Area C - Consideration of production and material variability
Subproject C3

Subproject C3 Regeneration-induced Mistuning (finished 2017)

In the subproject C3 the mistuning of the disk part of a blisk was 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 was considered in the simulation model. With a modified rotating test rig, the necessary model parameters were identified and a validation of the simulation results was conducted.

Subproject leader

Prof. Dr.-Ing. Jörg Wallaschek
Phone
+49 511 762 4162
Email
wallaschekmaschinenbau.uni-hannover.de
Phone
+49 511 762 4162
Email
wallaschekmaschinenbau.uni-hannover.de

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 blades,  Aircraft 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 Arrangement,  J. 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 Bonhage,  J. 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 Mistuning,  GPPS (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 Interaction,  In: 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 Blades,  In: 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 Measurements,  Proceedings 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 Turbines,  ASME 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 Disks,  ASME 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 Technique,  In 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 Verstimmung,  Berichte 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 Schaufelkränzen,  Berichte aus dem IDS, Band 01/2015, PZH Verlag
    ISBN: 978-3-95900-009-3
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