Design of a Micro-Recoverable Fuze with Inertial Safety and Arming Device Under Low Overload Conditions
ShuangJie Liu a, Xudong Liu b, Nan Li c, Dawang Ma d, Lanjie Niu e and Fuhong Chen f
aProfessor, School of Equipment Engineering, Shenyang Ligong University, Shenyang, Liaoning 110159, China.
bGraduate Student, School of Equipment Engineering, Shenyang Ligong University, Shenyang, Liaoning 110159, China.
cEngineer, Liaoning Huaxing Electromechanical Co., Ltd, Jinzhou, Liaoning 121017, China.
dEngineer, Anhui Dongfeng Electromechanical Technology Co., Ltd., Hefei, Anhui 231202, China.
eSenior Engineer, Xi'an Institute of Electromechanical Information Technology, Xi'an, Shaanxi 710065, China.
fSenior Engineer, Sichuan Aerospace System Engineering Institute, Chengdu, Sichuan 610100, China.
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Abstract:
Addressing the miniaturization and intelligence challenges of traditional Safety and Arming Devices (SAD), this study introduces a micro-recoverable inertial SAD capable under low overload. It integrates an inertial mass, gear set, and actuator, optimizing structure while ensuring security, reliability, and restorable safety states. Through modeling and validation, the optimal helical angle α range of 36°-53° ensures reliable unlocking and prevents self-locking. The SAD achieves a 1:3 efficient displacement and instantly returns to a safe state. Timed locking of the flameproof plate by the actuator ensures stable missile status during transitions and enhances economy & recyclability.
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