The vibration mode analysis of an automotive diesel engine for the purpose of obtaining a lower level of noise emission will be described in the paper.Since the noise emission corresponds to the vibration of certain components of the engine, the vibration of engine structure was analyzed in several running conditions.Vibration distribution shows a natural vibration mode which was proven by coincidence with the result obtained by modal analysis.When measurement of the vibration mode is very difficult due to the high mechanical impedance and especially the big damping factor of the component, a new method of vibration mode analysis for the engine component excited by cylinder pressure was proven to be useful.Some attempts for controlling the noise and an analysis of damping effects will also be described in the paper.


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    Title :

    Vibration Mode Analysis for Controlling Noise Emission from Automotive Diesel Engine


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1979 Automotive Engineering Congress and Exposition ; 1979



    Publication date :

    1979-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Vibration Mode Analysis for Controlling Noise Emission from Automotive Diesel Engine

    Aoyama,F. / Tanaka,S. / Miura,Y. et al. | Automotive engineering | 1979




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    Russell,M.F. / Lucas Industries,GB | Automotive engineering | 1979


    Automotive diesel engine noise analysis, diagnosis and control

    Russel,M.F. / Lucas Ind.Noise Cent.,GB | Automotive engineering | 1979