Research into means of reducing noise from diesel-engined goods vehicles of 30-40 tonnes gross vehicle weight has shown that engine redesign can reduce noise from this component by 5-10 dB(A) within reasonable production, performance and cost constraints. Attention to the exhaust system, cooling package, engine covers and chassis design has resulted in a 10 dB(A) reduction in noise in the cab. Results are quoted from a number of experimental vehicle builds and the basis for a demonstration vehicle built to production standards which should meet a target drive-past noise level of 80 dB(A) is described. (Wassmann)


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    Title :

    The transport and road research laboratory quiet heavy vehicle project


    Additional title:

    Das Projekt des leisen Schwerfahrzeuges im Transport- und Strassenforschungslaboratorium


    Contributors:

    Published in:

    Publication date :

    1979


    Size :

    27 Seiten, 29 Bilder, 8 Tabellen, 3 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    THE TRANSPORT AND ROAD RESEARCH LABORATORY QUIET HEAVY VEHICLE PROJECT

    Cawthorne, A.R. / Tyler, J.W. | SAE Technical Papers | 1979


    The Transport and Road Research Laboratory Quiet Heavy Vehicle Project

    Cawthorne,A.R. / Tyler,J.W. / Transp.and Road Res.Lab.,Crowthorne,GB | Automotive engineering | 1979