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Noise source localisaton in a car environment

Fazenda, Bruno, Gu, Fengshou, Ball, Andrew and Guan, Luyang (2009) Noise source localisaton in a car environment. In: 8th International Conference on Damage Assessment of Structures, 3-5 August 2009, Beijing, China. (Unpublished)

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    Abstract

    Spurious noise (rattles, squeaks, etc) in the interior of car cabinets can be annoying, distractive and
    indicative of potential performance problems. Fault finding these problems can be difficult since the
    fault is intermittent and may not necessarily happen under test conditions. A 3 channel system that
    can record the fault and indicate its location within the cabinet is presented here. The system
    consists of a coincident microphone array that measures acoustic particle velocity along two
    orthogonal axes at its location. Detection and direction of noise can be obtained in real time or
    during post-processing using advanced signal analysis methods. Measurements inside a vehicle
    show that the very reflective nature of the sound-filed inside a car cabinet present a major challenge
    and that a combination of advance techniques from diagnostics engineering and room acoustics are
    required to reliably indicate the direction of the annoying sound.

    Item Type: Conference or Workshop Item (Paper)
    Subjects: T Technology > T Technology (General)
    T Technology > TK Electrical engineering. Electronics Nuclear engineering
    Schools: School of Computing and Engineering
    School of Computing and Engineering > Automotive Engineering Research Group
    School of Computing and Engineering > Diagnostic Engineering Research Centre
    School of Computing and Engineering > Diagnostic Engineering Research Centre > Energy, Emissions and the Environment Research Group
    School of Computing and Engineering > Diagnostic Engineering Research Centre > Machinery Condition and Performance Monitoring Research Group
    School of Computing and Engineering > Diagnostic Engineering Research Centre > Measurement System and Signal Processing Research Group
    School of Computing and Engineering > Informatics Research Group
    School of Computing and Engineering > Informatics Research Group > XML, Database and Information Retrieval Research Group
    Related URLs:
    Depositing User: Sara Taylor
    Date Deposited: 17 Mar 2009 14:27
    Last Modified: 14 Sep 2011 12:48
    URI: http://eprints.hud.ac.uk/id/eprint/3659

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