For the contradiction between safety and reliability of fuze setback arming device,the inclined design of fuze setback arming device was put forward.The program made the fuze axis inclined some degrees to the fuze axis.Dynamic characteristics of inclined design of fuze setback arming device was analyzed by rigid body dynam-ics theory.The results showed that the inclined design of fuze setback arming device contributes to improve the fuze safety when the proj ectile and fuze fall accidentally, and the performance of normal arming was not affected.%针对引信后坐保险机构安全和可靠解除保险之间的矛盾，提出了引信后坐保险机构斜置设计方案。该方案是将传统的轴线与引信轴线平行或重合的后坐保险机构相对于引信轴线斜置一定角度设置。应用刚体动力学理论分析了引信后坐保险机构斜置设计动态特性，并给出了算例。仿真验证结果表明：后坐保险机构斜置设计有助于提高勤务处理弹丸和引信意外跌落时引信安全性，即有助于提高引信防止意外解除保险的性能，而正常解除保险性能不会受到影响。
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