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A Mapping Procedure for the Computation of Flow-Induced Vibrations in Turbomachinery

In: Scientific Computing and Algorithms in Industrial Simulations

Author

Listed:
  • Nadja Wirth

    (Fraunhofer Institute for Algorithms and Scientific Computing SCAI)

  • André Oeckerath

    (Fraunhofer Institute for Algorithms and Scientific Computing SCAI)

Abstract

In this paper a mapping procedure for the simulation of flow-induced vibrations in turbomachinery is presented. The exciting pressure fluctuations are computed in the frequency domain using harmonic CFD methods and are mapped to a structural FEM model of the considered turbine component utilizing the Fraunhofer SCAI software MpCCI FSIMapper. The frequency response analysis of the structure gives information about the resulting vibration amplitudes and allows realistic fatigue estimations of the flow-excited turbine component. The mapping process is designed for the special needs of applications using cyclic symmetric simulation models. The described method is applied to a two-stage axial turbine.

Suggested Citation

  • Nadja Wirth & André Oeckerath, 2017. "A Mapping Procedure for the Computation of Flow-Induced Vibrations in Turbomachinery," Springer Books, in: Michael Griebel & Anton Schüller & Marc Alexander Schweitzer (ed.), Scientific Computing and Algorithms in Industrial Simulations, pages 245-263, Springer.
    • Handle: RePEc:spr:sprchp:978-3-319-62458-7_13
    DOI: 10.1007/978-3-319-62458-7_13
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