Armature Characteristics Analysis of Synchronous Induction Coil Gun

Based on the work mechanism of the armature,its material and structure that have great influence on the performance of synchronous induction coil gun were discussed.The finite element simulation models of solid armature and winding armature were built up by use of the Maxwell software.Their electromagnetic field simulation was performed.Compared with the solid armature,these results revealed that the eddy current distribution of winding armature is better than that of the solid armature,although the solid armature's structure is simple.Lastly,a new kind of armature,hybrid material armature was given.The structure of hybrid material armature was discussed.Its finite element model was set up and the transient simulation and eddy current simulation were carried out.Both the theoretical analysis and the simulation results indicated that the hybrid material armature is a kind of promising armature because of its simple structure,even distribution eddy current and high efficiency.These results can provide the guide for further design and structural optimization of armature in engineering project.