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为研究弹体在钢筋混凝土中的侵彻过程,本文研制了格栅测试系统,主要由格栅电缆、LED灯、电源和高速相机等组成.依附靶体中的钢筋,格栅电缆被制作成棋盘式格栅网,按一定间距预埋于靶体之中,并与电源和LED灯组成回路.运动中的弹体切断附近的格栅电缆,对应的LED灯将熄灭,进而表征了格栅电缆的破坏状态,并由高速相机进行记录.结合格栅的分布,实时原位测试弹体的侵彻轨迹、速度和侵彻深度.基于此,本文测试了弹体的速度变化和最终的侵深,并结合经验公式、直接测量进行了校验,论证了格栅测试方法的有效性.
In order to study the penetration process of the projectile in reinforced concrete, a grid test system is developed in this paper, which consists of grid cables, LED lights, power supplies and high-speed cameras etc. The steel bars and grid cables attached to the target body are made into Checkerboard grille, embedded in the target at a certain pitch, and the circuit with the power and LED lights. Movement of the body off the grid near the grill cable, the corresponding LED lights will go out, and then the characterization of the grille Cable damage state, and recorded by high-speed camera.Combining with the distribution of grid, real-time in situ test projectile penetration trajectory, velocity and penetration depth.Therefore, this paper tests the projectile velocity changes and the final invasion Depth, and combined with empirical formula, the direct measurement was verified, demonstrated the effectiveness of the grid test method.