On the basis of the consideration of various possible kinds of propeller vibrations, the resonance vibrations caused by unequal impacts of the propeller blades appear to be the most important. Their theoretical investigation is made by separate analysis of torsional and bending vibrations. This method is justified by the very great difference in the two natural frequencies of aircraft propeller blades. The calculated data are illustrated by practical examples. Thereby the observed vibration phenomenon in the given examples is explained by a bending resonance, for which the bending frequency of the propeller is equal to twice the revolution speed.


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    Title :

    Resonance vibrations of aircraft propellers


    Contributors:

    Publication date :

    1932-02-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English



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