The far-field pressure was measured from three different types of moving sources: a point monopole, a small model jet, and an aircraft. Results for the pressure time history produced by the point source show good agreement with those predicted analytically. Both actual and simulated forward motion of the model jet show reductions in noise levels with forward speed at all angles between the source and observer. Measurement with the aircraft over both an anechoic floor and over the ground yields a method for evaluating the transfer function for ground reflections at various angles between the moving aircraft and measurement position.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Experimental measurements of moving noise sources


    Contributors:


    Publication date :

    1979-08-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Visualization Study on Moving Noise Sources

    Tanaka, T. | British Library Online Contents | 1996


    Noise sources from moving surfaces - Theoretical background

    Ehrenfried, Klaus | German Aerospace Center (DLR) | 2006

    Free access

    Suppression of spurious noise sources in airfoil self-noise measurements

    Tuinstra, Marthijn / Sijtsma, Pieter | AIAA | 2015


    The Sources of Jet Noise: Experimental Evidence

    Tam, C. / Viswanathan, K. / Ahuja, K. et al. | British Library Conference Proceedings | 2007


    Vertical description of the noise sources of a moving passenger car

    Pallas, M.A. / Gaulin, D. / Berengier, M. | Tema Archive | 2000