This paper summarizes the results of testing on the U.S. Army XCH-62 Heavy Lift Helicopter (HLH) combiner transmission. This trasmission is rated at 10.620 HP. Program elements included design and fabrication of new bevel gears, static and dynamic strain surveys of the transmission gears, optimization of gear bending stresses following the first strain survey, correlation of FEM analysis with measured stresses, evaluation of a new lubricant to raise the scuffing/scoring load limitation, measurement of gear tooth temperatures under operation conditions, and load testing. The findings establish that 100 percent of design loading was attained within the permissible range of measured gear tooth bending stress limits, AEO conditions; 95 percent of design loading was attained within the above limits, OEI conditions. Alternating stresses on the collector gear set the load limits. Further analytical effort is required to accurately predict the stress levels in gears loaded on both sides of the teeth as is the collector gear.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Development of a large, spiral bevel gear rotorcraft transmission


    Additional title:

    Entwicklung eines grossen Kraftuebertragungssystems mit Spiralkegelradgetrieben fuer Hubschrauber


    Contributors:
    Drago, R.J. (author) / Mack, J.C. (author)

    Published in:

    AIAA-Papers ; Jul ; 1-6


    Publication date :

    1987


    Size :

    6 Seiten, 18 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Spiral bevel gear lifting tool

    LIU JINGUO | European Patent Office | 2016

    Free access

    Making the spiral bevel gear

    Engineering Index Backfile | 1915


    OVERLOAD EVALUATION OF ROTORCRAFT TAIL ROTOR DRIVE SPIRAL BEVEL GEARS

    Ames, E.C. / Pulikollu, R.V. / American Helicopter Society | British Library Conference Proceedings | 2013


    MICROSTRUCTURE-BASED FATIGUE LIFE PREDICTION TOOL FOR ROTORCRAFT SPIRAL BEVEL GEARS

    Pulikollu, R.V. / Bolander, N. / Shen, T. et al. | British Library Conference Proceedings | 2013