Published January 1, 2011
| Version v1
Journal article
Open
Transient modelling of a linear induction launcher-type coil gun with two-dimensional cylindrical finite-difference time domain method
Creators
- 1. Gebze Inst Technol, Dept Elect Engn, TR-41400 Gebze, Kocaeli, Turkey
Description
Two-dimensional (2D) simulation of a linear induction launcher-type coil gun is performed by the cylindrical finite-difference time domain (FDTD) method. Maxwell's equations in cylindrical coordinates are used to formulate the problem. Circular symmetry is assumed for reducing the 3D problem to a 2D one. A singularity that appeared at r = 0 is extracted by using the integral formulation of the FDTD method. A special quasi-static approximation of the FDTD method is applied in the cylindrical problem space which is terminated with the second-order Mur absorbing boundary condition. The armature movement in the FDTD method is treated by the quasi-steady-state method. An experimental model was built, and the muzzle velocity was measured for comparison with the calculated value. Good agreement was obtained.
Files
bib-c6a57398-6de2-451d-9447-a9bbfb5ae3f3.txt
Files
(226 Bytes)
| Name | Size | Download all |
|---|---|---|
|
md5:b6144c90de6e4d265e419e5a25df372e
|
226 Bytes | Preview Download |