钻地弹斜侵彻混凝土靶的工程计算模型

doi:10.7527/S1000-6893.2016.0031

固体力学与飞行器总体设计

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钻地弹斜侵彻混凝土靶的工程计算模型

薛建锋, 沈培辉, 王晓鸣

南京理工大学机械工程学院, 南京 210094

收稿日期:2015-12-17 修回日期:2016-01-25 出版日期:2016-06-15 发布日期:2016-02-17
通讯作者: 沈培辉男,教授,硕士生导师。主要研究方向:战斗部设计。Tel:025-84317237 E-mail:sphjy8@mail.njust.edu.cn E-mail:sphjy8@mail.njust.edu.cn
作者简介:薛建锋男,博士研究生。主要研究方向:弹体战斗部设计。Tel:025-84317237 E-mail:xuejianfeng666@163.com;王晓鸣男,教授,博士生导师。主要研究方向:弹药与战斗部系统技术。Tel:025-84315059 E-mail:202xm@163.com
基金资助:
国家"973"计划(61314302)

Engineering calculation model for oblique penetration into concrete target by earth penetration weapon

XUE Jianfeng, SHEN Peihui, WANG Xiaoming

School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

Received:2015-12-17 Revised:2016-01-25 Online:2016-06-15 Published:2016-02-17
Supported by:
National Basic Research Program of China (61314302)

摘要/Abstract

摘要：

为了研究侵彻过程中钻地弹受力不对称性下的运动轨迹,结合动力学基本方程和经典空腔膨胀理论,基于层裂机理,建立了具有倾角和攻角相结合的卵形弹侵彻混凝土的工程模型。利用该模型得到了弹体头部运动轨迹与倾角、攻角以及速度的关系,结果表明侵彻深度随着倾角的增大而明显减小,弹体头部运动轨迹的弯曲弧度也越大;攻角越大,产生的偏转力矩越大。对工程模型进行试验验证,结果吻合较好,该模型能够有效地反映出斜侵彻过程的主要特征,进而说明该模型的适用性与合理性。

关键词: 冲击动力学, 钻地弹, 斜侵彻, 层裂机理, 运动轨迹

Abstract:

In order to study trajectory of earth penetration weapon during penetration under stress asymmetry, in combination of kinetic basic equations and classical cavity expansion theory, an engineering model of projectile penetrating into concrete with incident angle and yawed angle is established using surface splitting mechanism. The relationship between the trajectory of projectile head and yawed angle, incident angle and velocity is obtained using the model. The results show that the penetration depth decreases obviously with the increase of incident angle, and the curve arc of the projectile's head is larger. The deflection torque increases with the increase of yawed angle. The engineering model is verified by experiment, and the results are in good agreement with the experimental results. The model can effectively reflect the main characteristics of oblique penetration process. The applicability and rationality of the model are also proved.

Key words: impact dynamics, earth penetration weapon, oblique penetration, splitting mechanism, trajectory

中图分类号:

V219
TJ014

薛建锋, 沈培辉, 王晓鸣. 钻地弹斜侵彻混凝土靶的工程计算模型[J]. 航空学报, 2016, 37(6): 1899-1911.

XUE Jianfeng, SHEN Peihui, WANG Xiaoming. Engineering calculation model for oblique penetration into concrete target by earth penetration weapon[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(6): 1899-1911.

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

钻地弹斜侵彻混凝土靶的工程计算模型

Engineering calculation model for oblique penetration into concrete target by earth penetration weapon

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