Theoretical Method Research on a MEMS Safety and Arming Device

Abstract:

With the intelligent development of small-caliber ammunition, the overall size of the fuze is compressed. In this paper, a theoretical method-energy statistical method has been proposed according to the MEMS S&A device. Taking the slider mass, micro-spring stiffness, latch mechanism size, and initial offset distance into account, the conversion relationship among each part of energy in the process is obtained. For an existing structure of MEMS S&A device, known parameters are utilized to reverse the overload value at arming condition. The ANSYS/LS-DYNA finite element analysis software is used for simulation analysis, thereby confirming the feasibility of theoretical calculations. Also, theoretical calculation error ε is obtained, which to be 0.7%. Energy statistical method and simulation analysis serve as theoretical references for the design of the MEMS S&A device.

• Periodical: Advanced Materials Research (Volume 901)
• Pages: 93-97
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.901.93
• Online since: February 2014
• Authors: Fang Yi Liu*, Wen Zhong Lou, Fu Fu Wang, Ying Wang
• Keywords: ANSYS/LS-DYNA, Arming Device, Energy Statistical Method, MEMS, Safety

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