2026-09-20T15:42:39Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/664062022-01-13T07:54:29Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
James L. Kirtley, Jr.
Angle, Matthew G. (Matthew Gates)
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2011-10-17T21:22:28Z
2011-10-17T21:22:28Z
2010
2011
http://hdl.handle.net/1721.1/66406
755082010
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).
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.
by Matthew G. Angle.
M.Eng.
98 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
copyright. They may be viewed from this source for any purpose, but
reproduction or distribution in any format is prohibited without written
permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Electrical Engineering and Computer Science.
Electrical instrumentation of a contra-rotating propeller drive system
Thesis
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<Abstract>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.</Abstract>
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