Inverse Source Identification based on Acoustic Particle Velocity Measurements

Rene Visser

    Research output: Contribution to conferencePaper

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    Abstract

    A general applicable acoustic source identification method is the inverse frequency response function technique (IFRF). In the standard IFRF method acoustic pressures measured on a grid in the nearfield of the acoustic source are used. To relate the measured field pressures to the normal velocities on the surface of the source, a transfer matrix is calculated with a boundary element method. The resulting system of equations is ill-conditioned and can only be solved by applying regularization techniques. In this paper, it is described how the nearfield particle velocities can be used instead of pressures to reconstruct the original source vibrations. By means of a simulated experiment, a comparison is made between pressure based and velocity based IFRF.
    Original languageUndefined
    Number of pages6
    Publication statusPublished - 2002
    Event31st International Conference on Noise Control Engineering, Inter-Noise - Dearborn, USA
    Duration: 19 Aug 200221 Aug 2002

    Conference

    Conference31st International Conference on Noise Control Engineering, Inter-Noise
    Period19/08/0221/08/02
    OtherAugust 19-21, 2002

    Keywords

    • IR-58832

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