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| Dynamic Characteristic Research of a New Electromagnetic Coil Launcher |
| Chen Xuehui,Cao Yanjie,Wang Chengxue,Wang Huijin |
| Naval Aeronautical and Astronautical University Yantai 264001 China |
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Abstract The thrust to the armature mainly comes from the lateral helix coil in the traditional electromagnetic coil launcher,but no object at the bottom. A new electromagnetic coil launcher (NEMCL) was designed in which a pancake coil was added to the bottom of barrel,a disk armature was added to the tail of the sleeve armature. The structure composition and working principle of NEMCL were introduced. Field-circuit coupling analysis of NEMCL model and external circuit was set up,dynamic characteristic such as current of drive coil,accelerative force and speed of armature was obtained; the results of drive current through field-circuit coupling was loaded to 3D finite element model,the law of the stress distribution in drive coil was obtained. The results show that greater forces were produced in the first stage of NEMCL and heavy loads were fit for launching.
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Received: 09 May 2012
Published: 11 December 2013
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2013, Vol. 28 
