The two main noise sources of an engine are the combustion process and mechanical impacts. Of the latter, generally the most important is piston slap, which is produced by impacts between the piston and cylinder wall. These impacts cause the engine outer surfaces to vibrate and consequently radiate noise. In this paper the time history of a piston slap impact force model was developed. This model takes into account the influence of the oil film on the impact behaviour, which was found to be an important factor. Test rigs were built to study these effects on the impact phenomenon and extensive tests were carried out.


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    Title :

    Effect of Cylinder Lubrication on Piston Slap


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    2005 SAE Brasil Fuels & Lubricants Meeting ; 2005



    Publication date :

    2005-05-11




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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