DEVELOPMENT OF DC LINEAR MOTOR -- FUNDAMENTAL CONSTRUCTION AND FEASIBILITY

This paper reports on the results of study and experiments of a DC Linear Motor which was developed by the authors and proposes a transportation system in which the DCLM is used. The technical and economical feasibility of the system is also verified. Since the DCLM system uses a normal conductive electromagnet as field magnet, it requires fewer elements to be developed, as compared with a combined system of superconducting levitation and linear synchronous motor (LSM), so that it can be put to practical use with the technology presently available. This is an important feature of the DCLM. Another advantage is high reliability, as no control is required of levitation force and the single mechanism can provide propulsion and levitation forces simultaneously, when compared with a combined system of attractive force-levitation and linear induction motor (LIM). The DCLM car is a tire-suspension type experimental car designed to determine its actual propulsive performance. The vehicle, weighing 3,000 kilograms, ran 200 m (effective distance 180 m) in the test to give the speed of 165 km/h.

  • Supplemental Notes:
    • IEEE Power Eng Soc, Summer Meeting, Los Angeles, California, July 16-21, 1978.
  • Corporate Authors:

    Institute of Electrical and Electronics Engineers

    3 Park Avenue, 17th Floor
    New York, NY  USA  10016-5997
  • Authors:
    • Umemori, T
    • Kawashima, M
    • Oda, M
    • Ohsawa, S
  • Publication Date: 1978

Media Info

  • Features: References;
  • Pagination: 9 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00184955
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Paper F 78 757-7 Preprint
  • Files: TRIS
  • Created Date: Jan 13 1979 12:00AM