中文摘要：

长管体斜侵彻半无限靶的研究具有重要意义。描述了长管体在速度范围在1000m／s-1500m／s时斜侵彻半无限均质靶板的物理图像，对长管体在侵彻各个阶段的受力和运动情况进行了分析，发现侵彻时管体中央的“靶芯”对侵彻过程影响很大。在一定假设条件下，基于变质量系统动量守恒定律建立了不同侵彻阶段长管体侵彻的质心运动方程，基于动量矩定理建立了不同侵彻阶段绕质心的摆动方程，并进行了数值计算。进行了长管体侵彻半无限均质靶板的试验，试验与计算结果表明二者的侵彻行程吻合较好，说明所建立的模型能够描述长管体对半无限均质靶板的侵彻过程，对空心弹和异形穿甲弹的研究和设计具有一定参考价值。

英文摘要：

The observations for long tubular oblique penetration into semi-infinite homogeneous target are interesting. The oblique penetration patterns of the long tube against homogeneous target at lO00m/s to 1500m/s are described. The effects of the ＂residual core＂ in target on long tubular penetration are important. Motions of long tube and external forces on it in every penetration stage are analyzed. Under some assumptions, the equations of centroidal motions of long tube and the equations of long tubular rotation about centroid in different penetration stages are established with conservation of momentum for system of variable mass and moment of momentum principle respectively. The model is simulated numerally. The experiments of long tubular oblique penetration into homogeneous target are carried out. The theoretical result of penetration courses agrees with the experimental data very well, which validates the model. The model is expected to helpful to the research of hollow and telescopic projectile.