下压式MEMS安全保险机构的设计与仿真

Design and Simulation of Down-pressure MEMS Security and Arming Device

针对现有MEMS安全保险机构存在结构复杂、空间利用率低等问题,采用一种下压式的布局形式,将后坐和离心保险上下布置,利用弹簧压缩产生的抗力实现后坐解保。利用ADAMS和Workbench对下压式MEMS安全保险机构在发射环境下的运动特性和部件的强度进行仿真分析,仿真结果表明,下压式MEMS安全保险机构在相同的发射环境和解保参数下能够达到镍材料的强度要求,并能够实现后坐和离心解保,且体积减少约20%,可以解决引信内部空间不足的问题。

To address the problems of complex structure and low space utilization of the existing MEMS security and arming device,a down-pressure layout form is adopted to arrange the recoil and centrifugal arming device up and down,and to achieve recoil arming function by using the resistance force generated by spring compression.ADAMS and Workbench are used to simulate and analyze the motion characteristics and strength of the components of the down-pressure MEMS security and aiming device under the firing environment.The simulation results show that the down-pressure MEMS security and aiming device can achieve the strength requirements of nickel material under the same firing environment and arming parameters,and can realize recoil and centrifugal arming,and the volume is reduced by about 20%,which can solve the problem of insufficient space inside the fuze.