The Parametric Analysis of the Lock-Releasing Mechanism in MEMS Safety and Arming Device

Abstract:

In this paper, a mechanical MEMS S&A device has been proposed. The size of the device is 10mm×13mm×0.5mm. The role of the lock-releasing mechanism is to amplify the moving distance of two times, so as to effectively guarantee the time of long-distance arming. Through establishing the three-dimensional model of without optimized lock-releasing mechanism, establishing the force and the parameters of locking-releasing mechanism, deriving the mathematical model according to the rigid dynamic mechanics theory and establishing the finite element model by using ANSYS/LS-DYNA, appropriate lock-releasing mechanism is designed to meet two items, one item is that the lock-releasing rod locks the main centrifugal slider before sub-centrifugal slider movement in place; the other item is that sub-centrifugal slider will hit the lock-releasing rod when it movement in place, so the lock-releasing rod rotates around rotational positioning block and releases the main centrifugal slider.

• Periodical: Key Engineering Materials (Volumes 645-646)
• Pages: 986-989
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.645-646.986
• Online since: May 2015
• Authors: Fu Fu Wang*, Wen Zhong Lou, Fang Yi Liu, Da Kui Wang, Jun Lu, Jian Wu, Xu Hong Guo, Zhe Zhang
• Keywords: Arming Device, Lock-Releasing Mechanism, MEMS, Safety

References

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DOI: 10.1109/nems.2013.6559841