A computerized procedure for vibration diagnostics of aircraft brakes has been developed, based on analysis of signals measured during dynamometer tests. The analyzed data include pressure, torque, load and acceleration signals, measured on the working brake. The applied procedure consists of digital zero-phase filtering, searching for the time window of maximum vibration activitiy and calculation of a number of dimensional and dimensionless discriminants, intended to represent the vibration events of brake stops in time and frequency domains. Advantages of the procedure include: high sensitivity to vibration events, use of traditionally measured brake signals for vibration diagnostics, substantial data reduction, and application of dimensional and dimensionless discriminants. Application of the procedure to the data analysis of aircraft carbon brake stops has shown its high diagnostics potential and usefulness for creating a product and design database. Future modifications of the procedure will include additional discriminants and computerized interpretation of results (artificial intelligence) to aid in the brake diagnostics and design.


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    Title :

    Computerized procedure for vibration diagnostics of aircraft brakes


    Additional title:

    Rechnergestütztes Verfahren für die Schwingungsdiagnose von Flugzeugbremsen


    Contributors:


    Publication date :

    1989


    Size :

    7 Seiten, 4 Bilder, 6 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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