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

  • 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
All publications of the Collaborative Research Centre  

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