A study was conducted to compare the efficiency of two helicopter transmission planetary reduction stages. Experimental measurements and analytical predictions were made. The analytical predicted and experiments verified that one planetary stage was a more efficient design due to the type of planet bearing used in the stage. The effects of torque, speed, lubricant type, and lubricant temperature on planetary efficiency are discussed. Keywords: Gears, Transmission, Efficiency, Power loss. (jhd)


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    Title :

    Efficiency Study Comparing Two Helicopter Planetary Reduction Stages


    Contributors:

    Publication date :

    1990


    Size :

    11 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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