Testing of instrumented spur gears operating at aerospace rotorcraft conditions was conducted. The instrumented gears were operated in a normal and in a loss-of-lubrication environment. Thermocouples were utilized to measure the temperature at various locations on the test gears and a test utilized a full-field, high-speed infrared thermal imaging system. Data from thermocouples was recorded during all testing at 1 Hz. One test had the gears shrouded and a second test was run without the shrouds to permit the infrared thermal imaging system to take date during loss-of-lubrication operation. Both tests using instrumented spur gears were run in normal and loss-of-lubrication conditions. Also the result from four other loss-of-lubrication tests will be presented. In these tests two different torque levels were used while operating at the same rotational speed (10000 rpm).


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    Title :

    Thermal Behavior of Aerospace Spur Gears in Normal and Loss-of-Lubrication Conditions


    Contributors:

    Conference:

    American Helicopter Society Annual Forum and Technology Display ; 2015 ; Virginia Beach, VA, United States


    Publication date :

    2015-05-04


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English