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<p>This study presents a low-overload, time-delay, recoverable safety and arming device (SAD) for self-propelled munitions. The planar mechanism uses a spring–mass structure and an escapement to achieve delayed arming. Simulations predict a minimum arming threshold of 8.4 g and a delay of 91.92 ms, while centrifuge tests confirm reliable operation under 13–15 g. The device shows stable arming and repeatable reset, and its planar design enables further miniaturization.</p>

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A low-overload, time-delay, recoverable safety and arming device with a MEMS-compatible planar configuration

  • 期刊论文

  • 发表日期：

    2026年7月29日

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  • Baoyang Guo,
  • Shuangjie Liu,
  • Tengyu Zhao,
  • Xudong Liu

摘要

This study presents a low-overload, time-delay, recoverable safety and arming device (SAD) for self-propelled munitions. The planar mechanism uses a spring–mass structure and an escapement to achieve delayed arming. Simulations predict a minimum arming threshold of 8.4 g and a delay of 91.92 ms, while centrifuge tests confirm reliable operation under 13–15 g. The device shows stable arming and repeatable reset, and its planar design enables further miniaturization.