科技导报 >

2016 , Vol. 34 >Issue 2: 287 - 298

DOI: https://doi.org/10.3981/j.issn.1000-7857.2016.2.049

综述文章

长杆弹侵彻半无限靶板流体动力学理论

  • 高光发
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  • 1. 南京理工大学机械工程学院, 南京 210094;
    2. 安徽理工大学煤矿安全高效开采省部共建教育部重点实验室, 淮南 232001;
    3. 中国科学技术大学近代力学系, 合肥 230027
高光发,教授,研究方向为爆炸与冲击动力学、波动力学,电子信箱:gfgao@ustc.edu.cn

收稿日期: 2015-03-25

  修回日期: 2015-11-01

  网络出版日期: 2016-02-04

基金资助

国家自然科学基金项目(11202206, 11472008);教育部博士点专项基金项目(20123415120001);中国博士后科学基金项目(2011M501057);安徽省自然科学基金项目(1208085QE86);安徽省高校省级优秀青年人才基金重点项目(2012SQRL049ZD);安徽理工大学博士基金项目(2011YB007);中央高校基本科研业务费专项资金项目(30915118801)

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Hydro-dynamics theory for long-rod projectile penetrating semi-infinite target: reviews and studies

  • GAO Guangfa
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  • 1. School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
    2. Key Laboratory of Safety and High-efficiency Coal Mining, Ministry of Education; Anhui University of Science and Technology, Huainan 232001, China;
    3. Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China

Received date: 2015-03-25

  Revised date: 2015-11-01

  Online published: 2016-02-04

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摘要

针对长杆弹垂直侵彻半无限金属靶板,基于侵彻流体动力学理论,研究结果和理论分析成果,从最简单的Bernoulli 方程出发,逐步推导、分析和讨论长杆弹垂直侵彻半无限金属靶板的相关理论。根据实验观察结果结合理论分析、数值仿真讨论了HTP模型的内涵、适用范围和局限性,给出了HTP 模型的基本假设;考虑靶板强度的影响,进而分析AR 模型的相关应用与内涵,并在此基础上讨论了弹体强度的影响,提出了改进的AR 模型,该模型是AR 模型向AT 模型过渡的一个模型,并讨论了该模型的适用性;结合数值研究和现有实验结果,分析了侵彻过程中弹体的速度特征,最后,分析了AT 模型的推导过程、内涵以及相关应用。HTP 模型是建立在9 个基本假设的前提下成立的,本文主要针对后两个假设,逐步释放其限制,从而逐步接近实际情况。

关键词： 侵彻力学; 穿甲理论; 流体动力学; 长杆弹; HTP 模型

本文引用格式

高光发 . 长杆弹侵彻半无限靶板流体动力学理论[J]. 科技导报, 2016 , 34(2) : 287 -298 . DOI: 10.3981/j.issn.1000-7857.2016.2.049

Abstract

Taking the behavior of long-rod projectile vertically penetrating semi-infinite metal target as the subject, this paper deduces and reviews a series of modified penetration theories based on the hydro-dynamic theory of penetration (HTP). A large quantity of published experimental data and numerical simulation results are employed for discussion of the theoretical analysis results. The assumptions and premises for the establishment of HTP model are presented. Based on these experimental data, the numerical results and theoretical analysis results, the connotation, scope of application and limitation of HTP model are discussed. The nine application preconditions for the HTP model are proposed. If the strength of the target is taken into account, the Allen-Rogers model is available. On the basis of analysis of the Allen-Rogers model and considering the strength of the projectile, this paper developed a modified Allen-Rogers model, provided solutions for it and made comparative analysis. In view of the deceleration of the projectile in the process of penetration, the numerical simulation of the penetration was conducted. The derivation and evolution of the theoretical model from the modified Allen-Rogers model to Alekseevskii-Tate model are discussed.

Key words： penetration mechanics; penetration mechanism; hydrodynamics; long-rod projectile; hydro-dynamic theory of penetration

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