ANSYS高速弹丸侵彻规律的研究仿真
时间:2017-06-19 20:15 来源:毕业论文 作者:毕业论文 点击:次
| 摘要动能弹高速侵彻混凝土靶板对军事防护工程具有重要意义，而钢筋混凝土靶具有明显改善靶板抗侵彻能力，逐渐成为军事科学研究领域的热点。本论文针对动能弹高速侵彻钢筋混凝土靶, 运用ANSYS AUTODYN数值仿真软件，对不同速度的动能弹侵彻不同强度的钢筋混凝土靶进行三文仿真计算，研究分析高速动能弹对钢筋混凝土靶的侵彻规律。本文中弹丸侵彻速度范围为800m/s ～1200m/s，通过改变钢筋直径及排列疏密来改变靶板强度。通过仿真并结合相关理论研究，得到以下高速侵彻规律：随着弹丸着速的增加，弹丸侵彻能力增加；靶板抗侵彻能力随着靶板强度的增加而增强；靶板钢筋直径越大，网格越小即排列的越密,靶板抗倾彻能力越强。10385 关键词 动能弹 数值仿真 高速侵彻 钢筋混凝土 靶板强度 毕业设计说明书（论文）外文摘要 Title Research on high speed projectile penetration rule Abstract Kinetic energy projectile speed penetration into concrete target is of great significance for military protection engineering, and it is gradually becoming a hotspot in the field of military scientific research problem.In this paper ,focused on kinetic energy projectile penetrating concrete target, using ANSYS AUTODYN simulation software, conducting 3D simulation calculation on the different velocity kinetic energy projectile penetrating into different strength of the reinforced concrete target, taking a research and analysis on high-speed projectile on the penetration of concrete target. In this paper the projectiles velocities in the range of 800m/s～ 1200m/s,by changing the diameter of steel bar and arranged to change the target intensity density.Combined simulation with relative theory and research，some high velocity penetration rule were : the ability of projectile penetration increases as the projectile velocity increases; as the plate material strength increasing,resisting projectile penetration ability increasing.Reinforcement diameter bigger, Steel grid size is smaller, more detailed arrangement. Resisting projectile penetration ability. Keywords Kinetic energy projectile numerical simulation high velocity penetration reinforced concrete Target strength 目录 毕业设计说明书（论文）外文摘要 II 目录 III 1 绪论 1 1.1 研究背景及意义 1 1.2 国内外研究发展状况 2 1.2.1 侵彻研究概述 2 1.2.2 混凝土靶的侵彻研究进展 3 1.3 存在的问题 4 1.4 本文研究内容 4 2 高速弹丸侵彻理论研究 5 2.1 引言 5 2.2 流体侵彻过程的理论分析 6 2.3 半流体侵彻过程的理论分析 7 2.3.1 弹靶强度侵彻模型 7 2.3.2 混凝土靶体阻力的确定 7 2.4 刚体侵彻过程的理论分析 10 2.4.1 空腔膨胀理论及相关求解 11 2.4.2 弹体阻力分析 14 2.4.3 刚体侵彻计算公式 17 2.4.4 常用的弹体侵彻混凝土深度经验公式 18 3 高速弹丸侵彻仿真研究 21 3.1 引言 21 3.2 高速侵彻规律的理论分析 21 (责任编辑：qin) |