Frictional Wear Analysis of Armature Rails by Temperature Field Effect

Frictional wear between the armature and the rails directly affects the armature-rails contact condition, thereby affecting the service life and launch efficiency of the electromagnetic rail launcher. In order to explore the influence of temperature on the frictional wear of electromagnetic rail launcher, the source of heat load on the launcher is analyzed, a frictional wear model under the effect of temperature is established and the effect of temperature on the wear between armature and rail is analyzed. Using the finite element method, the pulse forming network is used to power the launcher, the contact resistance variation curve with time is found out, the 3D finite element calculation model is established considering the electromagnetic field-temperature field-stress field, etc., and the data related to the armature wear amount in the two states considering the temperature field and not considering the temperature field are compared and analyzed. The results show that with the armature movement, the temp