The previous study indicates that the detonation waves generated by acetylene/oxygen mixture can converge in the combustion chamber. In order to verify the destructive effect of detonation wave convergence on piston materials, the detonation bomb device was modified to fundamentally investigate the material failures of aluminum alloy for pistons. The results show that the specimens are destroyed in the middle and edge region after dozens of detonations, which is consistent with the typical characteristics of the piston failures in engines. Therefore, the hypothesis that failures of piston material is caused by the detonation wave convergence is verified.


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    Title :

    Experimental Investigation on the Failures of Engine Piston Subjected to Severe Knock


    Additional title:

    Sae Technical Papers


    Contributors:
    Yao, Anren (author) / Yao, Chunde (author) / Xu, Han (author) / Gao, Jian (author) / Feng, Luyu (author)

    Conference:

    WCX SAE World Congress Experience ; 2019



    Publication date :

    2019-04-02




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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