Simulation of the Impact of Ballistic Centrifugal Environment on the Arming Delay Time of Fuze Clockwork Mechanism

MA Jing; LI Haojie; ZHANG Chuanhao; QIAO Shixiang; CHEN Zhipeng; ZHAO Yuan

doi:10.12382/bgxb.2025.0047

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Simulation of the Impact of Ballistic Centrifugal Environment on the Arming Delay Time of Fuze Clockwork Mechanism

更新时间：2026-04-24

- Simulation of the Impact of Ballistic Centrifugal Environment on the Arming Delay Time of Fuze Clockwork Mechanism
- Acta Armamentarii Vol. 47, Issue 2, Pages: 250047(2026)
- 作者机构：
  
  南京理工大学智能弹药技术国防重点学科实验室，江苏南京 210094
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2025.0047
  CLC： TJ43
- Received：13 January 2025，
  
  Online First：25 December 2025，
  
  Published：28 February 2026
- 稿件说明：
移动端阅览
MA Jing, LI Haojie, ZHANG Chuanhao, et al. Simulation of the Impact of Ballistic Centrifugal Environment on the Arming Delay Time of Fuze Clockwork Mechanism[J]. Acta Armamentarii, 2026, 47(2): 250047.
DOI：

MA Jing, LI Haojie, ZHANG Chuanhao, et al. Simulation of the Impact of Ballistic Centrifugal Environment on the Arming Delay Time of Fuze Clockwork Mechanism[J]. Acta Armamentarii, 2026, 47(2): 250047. DOI： 10.12382/bgxb.2025.0047.

摘要

钟表机构是引信安全系统中一种典型的延迟解除隔离计时装置，实际弹道环境中，弹丸的旋转以及构件之间的碰撞对引信钟表机构延迟解除隔离时间有较大影响，会导致引信安全距离内的安全失效或对目标作用失效。由于旋转弹与非旋弹的旋转环境有较大差异，为了探究实际应用中旋转环境对引信钟表机构延迟解除隔离时间的影响，对引信钟表机构进行动力学仿真，分析引信体旋转、扭簧刚度以及构件之间的碰撞对转子解除隔离时间的影响，并通过试验对仿真结果进行验证。研究结果表明，引信体的旋转及构件间的碰撞对转子延迟解除隔离时间有较大影响，通过调整钟表机构中扭簧的刚度系数，可有效调整解除隔离时间，以适应不同类别弹丸作战中对引信安全控制的需求，为引信的安全性设计与安全性控制提供了重要理论支持和工程指导。

Abstract

The clockwork mechanism is a typical time-delay arming device in the fuze safety system. In actual ballistic environments

the rotation of projectile and the collisions between components significantly impact arming delay time removal in the fuze clockwork mechanism

potentially resulting in the safety failures within the safe arming distance or the fuze function failure on the target. Due to significant differences in the rotational environments of spin-stabilized and non-spin-stabilized projectiles

this study investigates the influence of rotational environments on arming delay time of the fuze clockwork mechanism during practical applications. The dynamics of the fuze clockwork mechanism are simulated to analyze the effects of projectile rotation

torsion spring stiffness

and component collision on the rotor's arming time. The simulated results are validated through experiments. The results indicate that the projectile rotation and component collisions have significant affect on the rotor's arming delay time. By adjusting the stiffness coefficient of torsion spring in the clockwork mechanism

the arming delay time can be effectively modified to meet the safety control requirements for different types of projectiles in combat scenarios. This study provides important theoretical support and engineering guidance for the safety design and control of fuzes.

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references

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