Abstract
Hypervelocity gouging has been observed over several decades in engineering applications involving rocket sled, electromagnetic railgun and light-gas gun. In this paper, numerical simulations using explicit finite element method were carried out to investigate the gouging mechanism in railguns. Two models were constructed and discussed: one is the non-uniform contact model under magnetic pressure, and the other is the transverse swing impact model. The former shows that, the non-uniform contact under the action of magnetic pressure will not cause gouging, but will form grooves, although the armature slides parallel to the rail at a high speed. The latter shows that, the lateral swing of the armature at a high speed can lead to oblique impacts on the interface, forming pressure cores, and eventually gouging.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
