Research on Mechanical Responses of a Novel Inertially Driven MEMS Safety and Arming Device Under Dual-Environment Inertial Loads

MEMS safety and arming device (SAD) with merits of small size and easy integration is one of the most promising candidates for the fuze to realize miniaturization, integration and intelligence. In this paper, a novel inertia-driven MEMS SAD with three independent safety features is proposed. The SAD...

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Veröffentlicht in:IEEE sensors journal 2022-04, Vol.22 (8), p.7645-7655
Hauptverfasser: Lei, Shenghong, Cao, Yun, Nie, Weirong, Xi, Zhanwen, Yao, Jianyong, Zhu, Hengbo, Lu, Haining
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container_end_page 7655
container_issue 8
container_start_page 7645
container_title IEEE sensors journal
container_volume 22
creator Lei, Shenghong
Cao, Yun
Nie, Weirong
Xi, Zhanwen
Yao, Jianyong
Zhu, Hengbo
Lu, Haining
description MEMS safety and arming device (SAD) with merits of small size and easy integration is one of the most promising candidates for the fuze to realize miniaturization, integration and intelligence. In this paper, a novel inertia-driven MEMS SAD with three independent safety features is proposed. The SAD placed perpendicular to the projectile axis is beneficial to reduce the size and improve the detonation energy transfer efficiency. The dynamic finite element simulations are carried out to study the mechanical responses of the device under dual-environment inertial loads. The response behaviors of the setback and centrifugal safety features and interrupter under different loads are elucidated and discussed. A series of experiments are performed to verify the simulation analysis results and investigate the safety and arming performances. The results indicate that the proposed MEMS SAD with small size and compact structure has successfully achieved safety and arming performances. The experimental results are in good agreement with the simulated analysis results.
doi_str_mv 10.1109/JSEN.2022.3157054
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subjects Detonation
dual-environment loads
Energy transfer
Interrupters
Load modeling
mechanical response
MEMS
Micromechanical devices
Miniaturization
Particle beams
Performance evaluation
Projectiles
Safety
safety and arming device
safety feature
Simulation
Springs
title Research on Mechanical Responses of a Novel Inertially Driven MEMS Safety and Arming Device Under Dual-Environment Inertial Loads
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