Design and Magnetic Analysis of a Gun Recoil Magneto-Rheological Damper

A gun recoil magneto-rheological(MR) damper under impact load was researched.A full-scale gun recoil MR damper with long-stroke,multistage slotted and smoothness disposal was designed.The coupling problem between structure and magnetic circuit for MR recoil damper was solved by the electromagnetic field finite element analysis software,and the electromagnetic field distribution of the designed gun recoil MR damper was also analyzed under different conditions,such as coil ringing direction,plunger and steel cylinder part's material selection,dampen channel,smoothness and chamfering disposal,etc.The magnetic circuit design rules of MR recoil damper under high impact load were also concluded.The simulation results indicate that the performance of the designed gun recoil damper satisfy the design requirements.