The paper presents a discussion of the measured speed control accuracy of a Hydro-Mechanical constant speed drive with precise speed trim. The error between the generator output frequency and the precise reference oscillator frequency is measured during generating system operation representing a greatly accelerated flight schedule. The digital instrumentation used to measure the error was developed specifically for this test and is described. The tests were made possible by the availability of a Programmed Test Area (PTA) which allows the test conditions to be repeated accurately through the application of Digital Programming. The test results indicate that frequency control accuracy is essentially determined by the reference.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Experimental Determination of Hydromechanical Constant Speed Drive Precise Frequency Control Accuracy


    Contributors:


    Publication date :

    1966-07-01


    Size :

    2693513 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    600 F hydromechanical constant speed drive

    Engineering Index Backfile | 1959



    CONSTANT SPEED DRIVE TO CONTROL VARIABLE APU SPEED AND CONSTANT GENERATOR OUTPUT FREQUENCY

    LEMMERS GLENN C JR / DELL JONATHAN C / BEHLING DAVID S | European Patent Office | 2023

    Free access

    Hydromechanical transmission

    Tema Archive | 1975


    HYDROMECHANICAL TRANSMISSION AND CONTROL METHOD

    DALLA PALMA LORENZO / GELMINI MARIO / ANGELONI CLAUDIO | European Patent Office | 2023

    Free access