The purpose of this program was to investigate the performance of high-speed overrunning clutch assemblies for use in a multiengine helicopter. The design operating conditions were 3,570 inch-pounds torque transmitted at 26,500 rpm. Two clutch configurations with differing design philosophies were evaluated. One design utilizes inner and outer sprag retainers with a central energizing ribbon spring. The other design positions the sprags with one retainer and incorporates garter springs at the sprag edges. An analysis of high-speed sprag clutch operation was performed, and a computer program was developed as an initial step to provide a mathematical model of clutch operation reflecting modern, high-speed mechanical component technology. (Author)


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    Title :

    Sprag Overriding Aircraft Clutch


    Contributors:
    P. Lynwander (author) / A. G. Meyer (author) / S. Chachakis (author)

    Publication date :

    1972


    Size :

    171 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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