At the present time, predictions of aircraft interior noise depend heavily on empirical correction factors derived from previous flight measurements. However, to design for acceptable interior noise levels and to optimize acoustic treatments, analytical techniques which do not depend on empirical data are needed. This paper describes a computerized interior noise prediction method for light aircraft. An existing analytical program (developed for commercial jets by Cockburn and Jolly in 1968) forms the basis of some modal analysis work which is described. The accuracy of this modal analysis technique for predicting low-frequency coupled acoustic-structural natural frequencies is discussed along with trends indicating the effects of varying parameters such as fuselage length and diameter, structural stiffness, and interior acoustic absorption.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Prediction of light aircraft interior noise


    Contributors:

    Conference:

    Annual Meeting of Acoustical Society of America ; 1976 ; Washington, DC


    Publication date :

    1976-04-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    Prediction of light aircraft interior noise

    Howlett, J. T. / Morales, D. A. | NTRS | 1976


    Prediction of Light Aircraft Interior Noise

    J. T. Howlett / D. A. Morales | NTIS | 1976


    Aircraft interior noise

    Wilby, J.F. | Tema Archive | 1996


    Aircraft interior noise

    Wilby, J.F. | Online Contents | 1996


    Measurement, analysis, and prediction of aircraft interior noise

    Howlett, J. T. / Williams, L. H. / Catherines, J. J. et al. | NTRS | 1976