Ball driven type MEMS SAD for artillery fuse

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The SAD (safety and arming device) is an indispensable fuse component that ensures safe and reliable performance during the use of ammunition. Because the application of electronic devices for smart munitions is increasing, miniaturization of the SAD has become one of the key issues for next-generation artillery fuses. Based on MEMS technology, various types of miniaturized SADs have been proposed and fabricated. However, none of them have been reported to have been used in actual munitions due to their lack of high impact endurance and complicated explosive train arrangements. In this research, a new MEMS SAD using a ball driven mechanism, is successfully demonstrated based on a UV LIGA (lithography, electroplating and molding) process. Unlike other MEMS SADs, both high impact endurance and simple structure were achieved by using a ball driven mechanism. The simple structural design also simplified the fabrication process and increased the processing yield. The ball driven type MEMS SAD performed successfully under the desired safe and arming conditions of a spin test and showed fine agreement with the FEM simulation result, conducted prior to its fabrication. A field test was also performed with a grenade launcher to evaluate the SAD performance in the firing environment. All 30 of the grenade samples equipped with the proposed MEMS SAD operated successfully under the high-G setback condition.
Publisher
IOP PUBLISHING LTD
Issue Date
2017-01
Language
English
Article Type
Article
Keywords

FABRICATION

Citation

JOURNAL OF MICROMECHANICS AND MICROENGINEERING, v.27, no.1

ISSN
0960-1317
DOI
10.1088/1361-6439/27/1/015032
URI
http://hdl.handle.net/10203/218317
Appears in Collection
ME-Journal Papers(저널논문)
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