Preprint Article Version 1 This version is not peer-reviewed

Design, Fabrication and Analysis of Threshold-Value Judging Mechanism in MEMS Safety and Arming Device

Version 1 : Received: 24 March 2017 / Approved: 24 March 2017 / Online: 24 March 2017 (10:12:13 CET)

How to cite: Wang, D.; Lou, W.; Feng, Y.; Wang, F. Design, Fabrication and Analysis of Threshold-Value Judging Mechanism in MEMS Safety and Arming Device. Preprints 2017, 2017030185 (doi: 10.20944/preprints201703.0185.v1). Wang, D.; Lou, W.; Feng, Y.; Wang, F. Design, Fabrication and Analysis of Threshold-Value Judging Mechanism in MEMS Safety and Arming Device. Preprints 2017, 2017030185 (doi: 10.20944/preprints201703.0185.v1).

Abstract

In order to meet the military requirements of the fuze, such as precision strike, efficient mutilates ability and low collateral damages, the microminiaturization is an inevitable trend of secure system. Based on the silicon-based MEMS S&A device designed by our term, the design principles of each module and fabrication process are introduced. The average fracture strength and Young's modulus of the silicon are 726 MPa and 175 GPa from the tensile test, respectively. From Hopkinson impact experiment, we can get the threshold-value judging mechanism being safety under the impact overload of 20526 g, and this value is much more than the standard of the drop overload 12000g; the arming value under the centrifugal overload obtained from theory, simulation and experiment is at the range of 28200 g and 32000 g, it shows that the threshold-value judging mechanism can be arming compared with the value 35951g of design principle. Therefore, the threshold-value judging mechanism can meet the design requirements of overload. Furthermore, the relationship of fracture threshold-values obtained by different theories is found out through parametric design method, as shown in Figure 14, it provides the theory evidence to the follow parametric design.

Subject Areas

MEMS S&A device; threshold-value judging mechanism; fabrication process; tensile test; theoretical, simulationand experimentalanalysis; parametric design method

Readers' Comments and Ratings (0)

Leave a public comment
Send a private comment to the author(s)
Rate this article
Views 0
Downloads 0
Comments 0
Metrics 0
Leave a public comment

×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.