A prototype ship propulsion device based on an electric motor that spins propellers in opposite directions was constructed and tested. The device uses a single motor to spin both propellers without a gearbox. The rotor is attached to one propeller and the stator to the other. It relies on the propellers to balance rotational speeds of the two shafts. Non-intrusive Load Monitoring (NILM) techniques were used to diagnose performance of the machine. This analysis confirmed a sensor failure in testing.


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    Title :

    Electrical instrumentation of a contra-rotating propeller drive system



    Publication date :

    2011


    Size :

    98 pages


    Remarks:

    Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, February 2011.
    Cataloged from PDF version of thesis.
    Includes bibliographical references (p. 11).


    Type of media :

    Theses


    Type of material :

    Electronic Resource


    Language :

    English




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