堆叠式微型数据采集系统抗高冲击结构设计

High-impact structure design of stacked micro data acquisition system

堆叠式微型数据采集系统广泛应用于航空航天试验分析、汽车安全测试、生物力学研究、车载黑匣子等,这些应用场景要求采集系统具有抗高冲击、质量轻等特点。针对该需求设计了一种新型的堆叠式抗高冲击结构。首先通过有限元建模对铝合金、炮钢、碳纤维新型复合材料下的抗高冲击结构进行了对比分析,然后针对不同壁厚下由碳纤维新型复合材料构成的结构的抗冲击能力进行了仿真,最终通过冲击实验证明了其抗冲击能力不低于4 000 G,实验结果表明该结构具备质量轻、可随意增减堆叠数量、易安装等优点。

Stacked micro data acquisition systems are widely used in aerospace test analysis, automotive safety testing, biomechanics research, automotive black boxes, etc. These applications require high impact resistance and light weight. A new type of stacked high-impact resistant structure is designed in response to this requirement. First, through finite element modeling, a comparative analysis of the high-impact structure under the new composite material of aluminum alloy, gun steel, and carbon fiber was carried out. Second, the impact resistance of the structure composed of the new carbon fiber composite material under different wall thicknesses was simulated. Finally, the impact test proves that its impact resistance is not less than 4 000 G. The experimental results show that the structure has the advantages of light weight, random increase or decrease of stacking quantity, and easy installation.