A Mechanical Engine Simulator for Development of Aero Engine Failure Analysis Methods

  • Robert LiebichEmail author
Conference paper
Part of the IUTAM Bookseries book series (IUTAMBOOK, volume 1011)


A mechanical engine simulator for method development is under construction at Berlin Institute of Technology. The new experimental rig reflects nearly all mechanical characteristics of an aero engine. The mechanical engine simulator will enable the analysis of diverse failure cases that need to be considered for an aero engine certification. Based on the experimental results using the mechanical simulator, analytical and numerical methods will be developed in order to demonstrate the capability of future engine projects. Those experimentally validated methods will predict the behavior of aero engines due to failures and provide a better understanding of their behavior during past failure events such as compressor and turbine blade loss, continued rotation after a fan blade loss or bird strike. The paper gives an overview of the principle certification specifications regarding engine failure cases, explains the background of failure analysis and provides design drawings and sketches of the future simulator test rig at the institute.


Whole engine analysis Engine simulator Rotor dynamics Blade loss Vibration Imbalance Rotor-to-stator contacts Active and passive bearings 


  1. 1.
    Liebich, E.: Alternative schwingungsreduktion von triebwerksrotoren – piezoaktor versus quetschöldämpfer. DGLR Jahrestagung (2005)Google Scholar
  2. 2.
    EASA Certification Specifications for Engines, CS-E 520 StrengthGoogle Scholar
  3. 3.
    EASA Certification Specifications for Engines, CS-E 810 Compressor and Turbine Blade FailureGoogle Scholar
  4. 4.
    EASA Certification Specifications for Engines, CS-E 800 Bird Strike and IngestionGoogle Scholar
  5. 5.
    EASA Certification Specifications for Engines, CS-E 790 Rain and Hail IngestionGoogle Scholar
  6. 6.
    EASA Certification Specifications for Engines, CS-E 525 Continued RotationGoogle Scholar
  7. 7.
    Ehmann, L.: Piezo actuators for vibration reduction of aero engine rotors – a case study. In: Proceedings of the ISCORMA-3, Cleveland, OH (2005)Google Scholar
  8. 8.
    Liebich, E., Bormann, A. Vibration damping of aero engine rotors by elastomer ring bearings. In: Proceedings of the 7th IFToMM Conference on Rotor Dynamics, Vienna (2006)Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Engineering Design and Product ReliabilityBerlin Institute of Technology – School VBerlinGermany

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