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Application of the Teager-Kaiser energy operator in diagnostics of a hydrodynamic bearing
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AGH University of Science And Technology, al. Mickiewicza 30, 30-059 Kraków, Poland
Department of Turbine Dynamics and Diagnostics, Institute of Fluid Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk, Poland
Publication date: 2020-12-31
Eksploatacja i Niezawodność – Maintenance and Reliability 2020;22(4):757–765
  • Use of the Teager-Kaiser energy operator to evaluate the state of unbalance.
  • Tests of the rotor supported on hydrodynamic plain bearings were conducted.
  • A diagnostic parameter was used to assess the technical condition of the machine.
The paper presents the use of the Teager-Kaiser energy operator (TKEO) to evaluate the state of rotor unbalance. The method was developed in 1990 by Kaiser and involves a simple calculation of signal energy. It has been used before in diagnostics, e.g. during the evaluation of instability of hydrodynamic bearings and as a diagnostic symptom of gearbox damage. This paper is the first to present the use of the Teager-Kaiser method to evaluate the rotor unbalance in hydrodynamic bearings.
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