Comparison between Linear Electromagnetic Accelerators

• Authors: T. Siaenen , M. Löffler
• Languages of publication: EN

Abstracts

EN

For symmetric Taylor tests a 2 m long electromagnetic accelerator will be used to accelerate 100 g rods up to 300 m/s. Only a small variance of the muzzle parameters, velocity and exit time, is tolerable. In order to find the most reliable, simple and efficient accelerator type, an axial coilgun, a flat-channel accelerator and an augmented railgun are compared using a lumped parameter model. In particular, the accelerator mutual inductances and their gradients characterize the propulsive forces. The essential advantages of the flat-channel geometry over the axial coilgun geometry are shown. The geometric improvements of the flat-channel accelerator open the way for the augmented railgun suitable and effective for the planned application. To minimize the variance of the muzzle parameters, modular capacitor banks with semiconductor switches allow the dynamic control of the railgun current, in principle.

Keywords

EN

85.70.Rp

Discipline

• 85.70.Rp: Magnetic levitation, propulsion and control devices

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 6
• Pages: 1089-1091

Dates

published

2009-06

Contributors

author

T. Siaenen

• ISL, Saint-Louis, France

author

M. Löffler

• Gelsenkirchen University of Applied Sciences, Neidenburger Str. 10, D-45897 Gelsenkirchen, Germany

References

• 1. G.I. Taylor, A.C. Whiffin, Proc. R. Soc. A 194, 289 (1947)
• 2. D.C. Erlich, D.A. Shockey, L. Seaman, AIP Conf. Proc. No. 78, 402 (1981)
• 3. H. Weh, J. Jaquelin, F. Moisson, M. Löffler, Coilgun Concepts, 4th European Symposium on EM Launch Technology, Celle, DE (1993)
• 4. J. Gallant, German-French Research Institute, Saint Louis, France, ISL-Report R 105/2005 (2005)
• 5. M.J. Löffler, Ph.D. Thesis, Techn. Univ. of Braunschweig (1988)
• 6. F.W. Grover, Inductance Calculations, Dover Publications, 1946
• 7. K. McKinney, P.P. Mongeau, IEEE Trans. Magn. 20, 239 (1984)
• 8. P. Lehmann, H. Peter, J. Wey, IEEE Trans. Magn. 37, 235 (2001)

Identifiers

DOI

10.12693/APhysPolA.115.1089