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This study introduces a novel high-functional-density integrated inertial switch for small-caliber projectile fuzes. The switch ensures super-quick initiation and reliable self-destruction, functioning reliably within microseconds.

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high-functional-density integratedinertial switchreliable self-destructionsmall-caliber projectile fuzesuper-quick initiation

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Area of Science:

  • Mechanical Engineering
  • Ballistics
  • Materials Science

Background:

  • Current small-caliber projectile fuzes require enhanced initiation and self-destruction capabilities.
  • Existing inertial switches face limitations in speed and integration.

Purpose of the Study:

  • To develop and validate a high-functional-density integrated (HFDI) inertial switch.
  • To meet combat technical requirements for super-quick (SQ) initiation and reliable self-destruction (SD).

Main Methods:

  • Utilizing elastic-plastic mechanics for reliable state switching analysis.
  • Employing simulations and experimental verification (anti-target method).
  • Investigating "ON-OFF" state transitions under ballistic conditions.

Main Results:

  • The HFDI inertial switch achieves "OFF-ON" transition during internal ballistics.
  • The switch demonstrates "ON-OFF" transition within 8 μs in simulated terminal ballistics.
  • Experimental results confirm μs-scale "ON-OFF" transition, aligning with simulations.
  • The HFDI switch offers enhanced functionality and a 44% height reduction.

Conclusions:

  • The HFDI inertial switch reliably meets SQ initiation and SD requirements for small-caliber projectile fuzes.
  • The developed switch shows significant improvements in performance and size compared to existing technologies.