High-overload Protective Structure Of Memory

Memory has a real-time recording function and is an important part of storage test system.The memory circuit inside the bomb memory suffered data damage due to high overload during the penetration process.This paper studies the protective measures of the memory in view of the problem that the memory chip is damaged in high overload environment.(1)The protective structure and technique in the high overload environment by analyzing the destructive factors.Based on the load transfer relationship,the dynamic response mechanism of the protection system under high overload is studied.(2)The protective system of the memory is a multi-layer composite structure,and its includes an external mechanical shell structure and a storage module structure.The external mechanical shell is designed as a cylindrical structure or a rectangular parallelepiped;the design of the storage module structure includes two part: a shell structure that is designed as a cylinders and an ellipsoid,and internal architecture that is designed as a cylinder,one cavity,two groove.According to different permutations and combinations,storage module structure has designed five structures.(3)ANSYS is used to construct two types of numerical simulation models: memory directly impacting concrete and bomb-loading different types of storage module structure impacting concrete,the speed is 850m/s.By comparing the results,the protective strength of the shell structure design and internal architecture design of the storage module structures is analyzed.Thus,this work can provide theoretical guidance for subsequent experiments and reduce overheads.(4)Five tests are carried out to penetrate the concrete with the different storage module structures.After the test is completed,retract the bomb and verify the reliability of the protective structure through the damage to the storage module structure and the completeness of memory chip data.The obtained minimum overload value for the storage module structure can bear through the g-high acceleration sensor at the tail.It is proved that in a high overload environment,the protective structure of the storage module structure can absorb energy,reduce the peak of overload,effectively protect the memory chip.