Parametric Research on Micro-Zigzag Slot Mechanism in OICW

Abstract

This paper describes the delayed effect on the motion characteristics of the slider in the S&A mechanism resulting from the micro-zigzag slot used in OICW (Objective Individual Combat Weapon) and studies its influence on the ability of filtering transient acceleration signals. Firstly, we established the mathematic model of the slider when the S&A mechanism was loaded by the rectangular pulse acceleration according to the Rigid Dynamic Mechanics Theory and got its analytical solution by using MATLAB. Secondly, to verify the feasibility of this micro-zigzag slot mechanism, we adopted two different kinds of acceleration loading curves, after the non-linear dynamic mechanics simulation on it by using ANSYS/LS-DYNA, displacement and velocity curves of the slider were calculated. Then, to find which structural parameter playing more important role in affecting the characteristics of micro-zigzag slot, we adopted Single-variable Method to study its structural parameter under the same simulation condition. The simulation results we got were almost consistent with the theoretical results. The parametric research of the micro-zigzag slot lays certain a foundation on the research of MEMS system.

Theoretical Method Research on a MEMS Safety and Arming Device

“…2. The structure of MEMS S&A device mainly includes frame (not moving parts), micro-spring, slider, latch mechanism (head latch and spring latch), and etc [5]. Fig.…”

Study on Parameters of MEMS Planar Zigzag Slot for Fuze

“…It can identify the inertial environments of the fuze on small caliber rocket round and achieve the appropriate action by the Z-shaped teeth, but it is not suitable for the one on medium and large caliber ammunition. Liu Chuanqin [9] et al had introduced a MEMS zigzag slot and applied it to the safety and arming mechanism in Objective Individual Combat Weapon (OICW), but it could not be used here for the difference of service handling and smooth start environments.…”