为了提高引信MEMS保险机构的安全和可靠性能,并针对非剪断式后座卡销受后坐力影响,卡销解除保险行程减小,系统安全性降低等缺点,提出了一种剪断式后坐卡销。通过仿真,表明该剪断式后坐卡销在高g环境下沿后坐力方向上的位移几乎为零,在10000g后坐加速度发射条件下,后坐卡销被后坐滑块完全剪断并解除保险。验证了该剪断式后坐卡销解除保险行程较大,安全性较高,满足可靠性要求。

In order to improve safety and reliable performance of arming device of MEMS fuze, and for the defect that the non-cut type recoil card pin was affected by the recoil before arming, its arming trip was diminished and the security of the system was reduced, a new form of cut-type recoil card pin was proposed. Simulation results proved that the displacement of the cut-type recoil card pin along the direction of the recoil was nearly zero in the high-g environment, under the launch conditions of 10000g recoil acceleration, the recoil card pin was sheared completely by the recoil slider and armed successfully. The arming trip of the cut-type recoil card pin was larger, the security of the system was greater, and meanwhile, it can meet the requirement of reliability.