Piston engines used in light aircraft occasionally experience extreme in-flight vibrations, especially while driving a two-bladed propellor during a severe yaw maneuver. This paper provides experimental evidence that this condition can be avoided by the judicious selection of the propeller and propeller shaft masses and stiffnesses. The paper also describes a digital computer program which successfully predicts the engine speed at which resonance will occur for a given propeller-engine combination. Because new airframe applications require the successful matching of both the engine and the propeller to the airframe, this program could provide airframe, propeller, and engine manufacturers with mutually acceptable solutions to their respective design requirements.


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    Title :

    Mathematical Simulation of a Vibrating Light Aircraft Piston Engine and Correlation with Engine Flight Test Data


    Additional title:

    Sae Technical Papers


    Contributors:
    Syson, R. H. (author) / Caron, R. P. (author)

    Conference:

    National Business Aircraft Meeting and Engineering Display ; 1974



    Publication date :

    1974-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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