弹载记录仪存储模块防护结构设计及优化

Design and Optimization of Protective Structure of Storage Module of On-Board Recorder

设计了一种新型多层壳体缓冲隔离的防护结构。壳体设计有3层,材料均为经特殊热处理后的高强度35CrMnSiA钢,结构内部外围电路及结构间隙采用环氧树脂灌封。通过对几种防护结构在典型撞击情况下的仿真对比,分析内部存储模块防护结构高过载时的动态响应特性。结果表明,椭球体内腔设计挖出适合核心存储器形状的腔体的存储模块防护装置抗冲击能力更强,更能有效保护内部存储器,加入垫片能够有效保护存储器后端。

A new protective structure of multi-layer shell buffer isolation was designed.The shell was designed with three layers,all of which were high-strength 35 CrMnSiA materials after special heat treatment.The internal and external circuits and structural gaps of the structure were sealed with epoxy resin.Through the simulation comparison of several typical protective structures under typical impact,the dynamic response characteristics of internal storage module protective structures under high overload were analyzed.The results show that the storage module protection device designed to dig out the cavity suitable for the core memory shape has stronger impact resistance and can effectively protect the internal memory.