有限空间筒式武器制动系统瞬态动力学分析

Analysis on Transient Dynamics of the Brake System of the Tube-type Weapon with Finite Space

文中采用有限元方法对80 mm有限空间筒式武器制动系统发射过程进行了仿真计算,比较了10~#钢、20~#钢、35~#钢不同材料变形环的吸能效果。结果表明变形环材料采用20#钢使系统碰撞作用时间最长,活塞移动距离最大,具有最强的吸收冲击能量能力,这样就使得系统的轴向拉力也最小。综合计算结果,变形环材料选择使用20~#钢。最后对三种材料制造的变形环进行了实弹射击试验研究,试验结果表明仿真计算是正确可行的。

The launching process of 80 mm finite space tube type weapon braking system was calculated and simulated by the finite ele- ment method in this paper, and the energy absorbing effects of deformation ring made of 10# steel, 20# steel and 35# steel respectively were compared. The calculation results showed that when the deformation ring adopted 20# steel, the system collision time was the longest, the piston displacement distance was the largest and the ability of absorbing impact energy was the strongest, which made the axial tension of the system the smallest. According to the comprehensive calculation results, 20# steel was selected as the deformation ring material. Final- ly, the live firing experimental investigation of the deformation ring made of three kinds of materials was carried out, and the experimental results showed that the finite element calculation result was correct and feasible.