EFFECTIVENESS OF THE REPULSION OF ELECTROMAGNETIC COILS WITH STRENGTHAND MAGNETIC-FIELD LIMITATIONS

Mechanical power units utilizing electromagnetic interaction between c oils are generally distinguished by compactness and ease of control. A coil-repulsion drive configuration is preferable for increasing the e fficiency of such a device. One of the main limitations in choosing th e parameters of stressed electromagnetic systems is mechanical strengt h. The application of superconducting coils has a number of additional limitations, for example, on the maximum magnetic field strength in t he cross section of the coils. The problems of optimizing the dimensio ns of the electromagnetic system of a power unit consisting of two ide ntical, coaxial, annular coils of rectangular cross section with oppos ing currents are investigated with allowance for strength and magnetic field limitations. (C) 1997 American Institute of Physics. [S1063-784 2(97)01805-9].