This citation summarizes a one-page announcement of technology available for utilization. Active fluidic dampers may be the best answer amoung possible alternatives for controlling subsynchronous whirl in turbopump shafts. A preliminary study indicates that a linear variable-bleed detector and a linear bistable amplifier are effective in supplying sizable controlled damping forces. A possible linear bistable damping system was developed using four detectors and four power amplifiers. ...FOR ADDITIONAL INFORMATION: Contact: The Patent Counsel, Marshall Space Flight Center, Alabama. Refer to MFS-19423.


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    Title :

    Controlling Subsynchronous Whirl in Turbopumps: Active fluidic dampers are proposed for controlling turbopump-shaft whirl


    Publication date :

    1981


    Size :

    1 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Controlling subsynchronous whirl in turbopumps

    Black, M. D. / Rowan, B. F. | NTRS | 1980



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