Multi Physical Field Simulation of Quadrupole Compound Rail Electromagnetic Launcher

Abstract

In the working process of quadrupole composite rail electromagnetic launcher, there will be many phenomena such as structural deformation, temperature change and electromagnetic interference. At the same time, it involves the multi field effects of electromagnetic field, temperature field and structural field, and its action mechanism is quite complex. In this paper, the finite element analysis software ANSYS is used to simulate the electromagnetic structure, electromagnetic temperature and electromagnetic temperature structure of the quadrupole composite rail electromagnetic launcher, and to explore its multi physical field characteristics under the action of different factors. The simulation results show that the simulation model can reflect the actual phenomena in the process of electromagnetic launch. The different temperature rise of each component of the launcher at the end of the launch will cause different degrees of deformation of the armature and rail. Therefore, the influence of thermal stress should be fully considered when design-ing the device structure and adding excitation.

Keywords

• |electromagnetic launcher|quadrupole composite rail|multi physical field coupling|finite element analysis|thermal stress