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Laboratory Tip-Timing Optical Measurement System of Rotating Blade Vibrations

  • L. Pešek
  • L. Půst
  • V. Bula
  • J. Cibulka
Original Paper

Abstract

The multipoint optical system, based on fast optical elements, for precise laboratory measurements of vibration of turbine blades under rotation was proposed in the IT AS CR. The optical system registers time passages of the blades. The paper describes optical sensor, test setup with measuring and excitation systems, results of numerical simulations and the first experimental results on the bladed wheel under rotation.

Keywords

Blade vibration Tip timing Optical system Magnetic excitation 

Notes

Acknowledgements

This work was supported by the research project of the Czech Science Foundation No. 16-04546S “Aero-elastic couplings and dynamic behavior of rotational periodic bodies”.

References

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Authors and Affiliations

  1. 1.Institute of Thermomechanics AS CRPragueCzech Republic

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