战斗部高速侵彻过载随外形变化规律

Rule of Penetration with High Velocity Overload Changing with the Shape of Warhead

针对超声速导弹战斗部侵彻问题,基于侵彻受力的基本原理,选定尖头类战斗部中的锥头形和钝头类战斗部中的球头形、截锥头形、截球头形和截枣核形战斗部作为研究对象,选定高速侵彻速度范围中1 900 m/s侵彻速度,利用仿真软件ANSYS/LS-DYNA分别建立有限元模型并仿真得到球头形向锥头形演变、截球头形向截锥头形演变和截枣核形最大横截面半径位置变化3种外形演变的战斗部侵彻过载的变化规律。

To deal with the warhead penetration of supersonic missile, the warhead of cone head shape of the pointed class as well as the warhead of ball head shape are studied, cut ball head shape and cut date-pit shape of the blunt class based on the basic principle of penetrating force 1 900 m/s belonging to high penetration velocity is used and the finite element model is established and simulated with the help of the software ANSYS/LS-DYNA to obtain the rule of penetration overload changing with the shape of warhead. The contour revolution of warhead includes the following three kinds： the evolution from ball head shape to cone head shape, cut ball head shape to cut cone head shape, and the change of position of the radius of maximum cross section of cut date-pit shape.