The paper tries to establish the possible correlations between the fluctuations of the angular motion of the crankshaft -which may be easily measured-with the variations of the pressure time-histories in the engine's cylinders.The model of the dynamic system of an engine shafting and the appropriate computing code are validated by comparison with measured angular motion of the front-end of the crankshaft. The algorithm of the code - based on the transfer matrix method - is then reversed in order to obtain the harmonic components of the exciting torques acting along the crankshaft from the harmonic components of the motion of the free-end of the crankshaft. Different ways of performing this task and the influence of nonuniform cylinder contributions are investigated and discussed.


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    Title :

    Possibilities to Reconstruct Indicator Diagrams by Analysis of the Angular Motion of the Crankshaft


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Off-Highway & Powerplant Congress & Exposition ; 1993



    Publication date :

    1993-09-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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