An onboard Acoustic Wiring Diagnostic System to monitor the health of aircraft wiring is under development by Innovative Dynamics Inc. The AWDS incorporates passive acoustic sensors to monitor wire chafing. The system operates continuously in-flight so that intermittent wiring fault conditions can be detected as they happen. Trend analysis data can be logged to enable pro-active maintenance prior to catastrophic failure. A key advantage of the in-situ system is to perform the inspection without removing or disconnecting the wiring. Acoustic signatures of representative aircraft wiring have been characterized under simulated damage conditions. Flight ready hardware and software have been developed and flight testing is underway on an H-53 helicopter. This paper will present the wire diagnostic approach, the AWDS flight instrumentation, and some representative lab test results.


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    Title :

    An Acoustic-Based Wiring Diagnostic System for Aircraft


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Aerospace Technology Conference and Exposition ; 2009



    Publication date :

    2009-11-10




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Aircraft wiring system

    Cox, R.H.W. / Hill, W.E. | Engineering Index Backfile | 1944


    Health monitoring of aircraft wiring by acoustic method

    Saha, S. / Xu, Z. / Koltsov, D. et al. | IEEE | 2009


    Aircraft wiring system

    Cox, R.H.W. / Hill, W.E. | Engineering Index Backfile | 1945


    Aircraft wiring system

    Cox, R.H.W. / Hill, W.E. | Engineering Index Backfile | 1944


    Aircraft wiring system

    Cox, R.H.W. / Hill, W.E. | Engineering Index Backfile | 1945