volume | PIER Journals

Abstract

The classical electrodynamics allows the use of retarded electromagnetic fields. The purpose of this investigation is to predict the useful force in a coil-ring system by electromagnetomechanical conversion. Analytical equations in retarded regime are given and are used to simulate a realistic thruster based on the coil-ring system. It is shown that a net force in the inertial coil-ring system is created. By means of high frequency electronics, analytical and practical tools toward new experiments for electromagnetic thrusters are given.

1. Tajmar, M., Advanced Space Propulsion Systems, Springer-Verlag, Wien, New York, 2002.

2. Zieve, P. B., J. L. Hartmann, and J. K. Ng, "High force density eddy-current driven actuator," IEEE Transactions on Magnetics, Vol. 24, 3144-3146, 1988.
doi:10.1109/20.92362 Google Scholar

3. Jefimenko, O. D., Causality, Electromagnetic Induction and Gravitation, Electret-Scientific-Company, West Virginia, 2000.

4. Jefimenko, O. D., Electricity and Magnetism, Appleton-Century Crofts, New York, 1966.

5. Monaghan, J. J., "Heaviside-Feynman expression for fields of an accelerated dipole," J. Phys. A, Vol. 1, 112, 1968.
doi:10.1088/0305-4470/1/1/315 Google Scholar

6. Mayes, C. and G. Hoffstaetter, "Exact 1D model for coherent synchrotron radiation with shielding and bunch compression," Phys. Rev. ST Accel. Beams, Vol. 12, 024401-2009.
doi:10.1103/PhysRevSTAB.12.024401 Google Scholar

7. Barut, A. O., "Electrodynamics in terms of retarded fields," Phys. Rev. D, Vol. 10, 3335-3336, 1974.
doi:10.1103/PhysRevD.10.3335 Google Scholar

8. Teitelboim, C., D. Villarroel, and C. G. van Weert, "Classical electrodynamics of retarded fields and point particles," Rivista Del Nuovo Cimento, Vol. 3, 1-64, 1980.
doi:10.1007/BF02895735 Google Scholar

9. Villarroel, D., "Preacceleration in classical electrodynamics," Phys. Rev. E, Vol. 66, 046624, 2002.
doi:10.1103/PhysRevE.66.046624 Google Scholar

10. Heras, J. A., "Radiation-fields of a dipole in arbitrary motion," Am. J. Phys., Vol. 62, 1109-1115, 1994.
doi:10.1119/1.17759 Google Scholar

11. Heras, J. A., "Explicit expressions for the electric and magnetic fields of a moving magnetic dipole," Phys. Rev. E, Vol. 58, 5047-5056, 1998.
doi:10.1103/PhysRevE.58.5047 Google Scholar

12. Jimenez, J. L., I. Campos, and N. Aquino, "Exact electromagnetic fields produced by a finite wire with constant current," Eur. J. Phys., Vol. 29, 163-175, 2008.
doi:10.1088/0143-0807/29/1/017 Google Scholar

13. Jackson, J. D., "Classical Electrodynamics," John Wiley & Sons, New York, 1999. Google Scholar

14. Griffiths, D. J. and M. A. Heald, "Time-dependent generalizations of the Biot-Savart and Coulomb laws," Am. J. Phys., Vol. 59, 111-117, 1991.
doi:10.1119/1.16589 Google Scholar

15. Purcell, E. M., Electricity and Magnetism Berkeley Physics Course, Vol. 2, McGraw-Hill, New York, 1985.

16. The coil-ring system can be seen as an antenna and the total momentum deduced from the specific spectral band. However, the speci¯c spectral band. However, the spectral band calculated from a transient profile of i(t) in retarded coordinates was out of computational limits.

17. Krawczyk, A. and J. A. Tegopoulos, Numerical Modelling of Eddy Currents, Oxford University Press, New York, 1993.

18. Weinzierl, S. R. and J. P. Krusius, "Heterojunction vertical FETs revisited --- Potential for 225-GHz large-current operation," IEEE Trans. Electron Devices, Vol. 39, 1050-1055, 1992.
doi:10.1109/16.129081 Google Scholar

19. Ekinci, K. L. and M. L. Roukes, "Nanoelectromechanical systems," Rev. Sci. Instrum., Vol. 76, 061101, 2005.
doi:10.1063/1.1927327 Google Scholar

20. Lyubutin, S. K., S. N. Rukin, B. G. Slovikovsky, and S. N. Tsyranov, "Ultrafast current switching using the tunneling-assisted impact ionization front in a silicon semiconductor closing switch," Tech. Phys. Lett., Vol. 31, 196-199, 2005.
doi:10.1134/1.1894430 Google Scholar

21. Markovic, M., M. Jufer, and Y. Perriard, "Analytical force determination in an electromagnetic actuator," IEEE Transactions on Magnetics, Vol. 44, 2181-2185, 2008.
doi:10.1109/TMAG.2008.888573 Google Scholar

Dr. Dimitri S. H. Charrier