金属圆柱壳参数变化对缓冲吸能的影响

根据能量守恒以及角度增量叠缩法研究得到了圆柱壳在采用不同的材料以及不同几何参数时的冲击块的速度位移曲线、圆柱壳的载荷以及瞬时载荷位移历程曲线，计算结果说明改变圆柱壳的材料以及几何参数可以确定合理的平均载荷以及瞬时载荷位移历程曲线，还可以通过增加圆柱壳的数量减少圆柱壳在塑性变形叠缩过程中的垂直位移。

Influence of Parameters Variation of Metallic Cylindrical Shell on Its Buffering-absorption Effect

According to energy conservation and increment of angle fold method, velocity-displacement curve of impact object mean load-displacement curve of cylinder shell instantaneous load-displacement curve of cylinder shell are obtained under different materials and different geometrical parameters. Calculation results show that reasonable mean load -displacement curve instantaneous load-displacement curve can be confirmed by changing cylindrical shell material and geometrical parameters ; vertical fold displacement in impact process can be reduced by increasing the number of cylindrical shells.