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Acta Aeronautica et Astronautica Sinica. 2022, (08) Core

Fault diagnosis method of rotor rub impact based on blade tip timingChinese Full TextEnglish Full Text (MT)

WANG Weimin;CHEN Ziwen;ZHANG Xulong;CHEN Kang;Beijing Key Laboratory of Health Monitoring and Self-Recovery for High-End Mechanical Equipment, Beijing University of Chemical Technology;Key Laboratory of Engine Health Monitoring-Control and Networking of Ministry of Education, Beijing University of Chemical Technology;

Abstract: Aero-engine rotor static rub impact will not only affect the bending vibration of the rotor, but also cause obvious torsional vibration of the rotor. Therefore, rub impact fault can be diagnosed by monitoring the changes of torsional vibration. Here, a rub impact fault diagnosis method based on improved blade tip timing is proposed. The rub impact fault diagnosis and early warning is carried out by monitoring the change of rotor torsional vibration. To solve the problem of inaccurate measurement... More
Keywords：

blade tip timing; rotor-stator contact; torsional vibration; rotor angular deceleration; fault diagnosis;

  • Series：

    (C) Architecture/ Energy/ Traffic/ Electromechanics, etc

  • Subject：

    Aeronautics and Astronautics Science and Engineering

  • Classification Code：

    V263.6

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