Joule heat characteristics of an enhanced four-rail electromagnetic launcher
The Joule heat produced by high current will cause armature and rail erosion,abrasion and planning damage in the course of working,which will seriously affect the service life of electromagnetic rail launcher.In order to mitigate the thermal damage of four-rail electromagnetic launcher,the method of protecting armature and the thermal generation mechanism of four-rail electromagnetic launcher are studied,the joule heat damage of armature and track caused by high current is studied,such as ablation,wear and planning.The Joule thermal characteristics of different coating materials were analyzed and compared with that of common armature,and a thermal suppression method based on armature coating for four-rail electromagnetic launcher was proposed.In order to alleviate the thermal damage of the four-rail electromagnetic launcher and improve its service life,the reference is provided.
electromagnetic emissionjoule heating characteristicscoated armaturefinite element analysisfour-rail electromagnetic transmitter
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