武装直升机在杀爆弹打击下的易损性及防护策略

胡诤哲; 李向东; 周兰伟; 陈兴

doi:10.13700/j.bh.1001-5965.2019.0427

武装直升机在杀爆弹打击下的易损性及防护策略

doi: 10.13700/j.bh.1001-5965.2019.0427

南京理工大学机械工程学院, 南京 210094

详细信息

作者简介:
胡诤哲男, 硕士研究生。主要研究方向:毁伤评估与目标易损性

李向东男, 博士, 教授, 博士生导师。主要研究方向:弹药终点效应、毁伤评估与目标易损性

周兰伟男, 博士, 讲师。主要研究方向:弹药终点效应、毁伤评估与目标易损性

陈兴男, 硕士研究生。主要研究方向:弹药终点效应与毁伤评估

通讯作者:
李向东, E-mail: lixiangd@njust.edu.cn

中图分类号: TJ85
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出版历程
- 收稿日期: 2019-08-03
- 录用日期: 2019-10-18
- 网络出版日期: 2020-06-20

Vulnerability and defense strategy for gunship against HE munition

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

More Information

Corresponding author: LI Xiangdong, E-mail: lixiangd@njust.edu.cn

摘要

摘要:
为研究武装直升机对小口径杀爆（HE）弹的防护策略，建立了某型武装直升机在小口径杀爆弹打击下的易损性模型，计算了典型受攻击方向的武装直升机易损面积，并将武装直升机底面划分为不同区域，计算了各区域的防护效率。计算表明，武装直升机最易损方向为其右后下方，此方向的易损面积为6.97 m²，结合武装直升机的外形特征，得出底面和侧面应当优先防护。对于武装直升机底面，前后燃油箱所在的2个区域的防护效率均达到50%以上，在布置装甲重量有限的条件下可优先防护该区域。另外，在主机身与机尾舱之间增加隔板可阻挡弹丸爆炸后横向飞散的破片，与直接防护武装直升机尾部相比，其防护效率由2.93%提高至11.07%。
- 武装直升机 /
- 小口径杀爆(HE)弹 /
- 易损性 /
- 防护策略 /
- 毁伤评估
Abstract:
In order to study the defense strategy for gunship against small caliber High-Explosive(HE) munition, the vulnerability model of gunship under the attack of small caliber HE munition was established and the vulnerable area of gunship in typical strike directions was calculated. The bottom of the gunship was divided into several regions and the defense effectiveness of these regions was calculated.According to the calculation results, the vulnerable area of gunship attacked from the lower-right back direction is 6.97 m², which exhibits the highest vulnerability. Considering the shape of the gunship, its bottom and sides need to be defended on the top of priority. The defense effectiveness of the two regions that contain front and back fuel tanks is higher than 50%, which means that these regions should be priorly defended if the mass of armor is limited. Adding the clapboard between the mainbody and the tail of the gunship can prevent the fragments spreading in the lateral direction after explosion of projectile, which leads to the defense effectiveness improving from 2.93% to 11.07%, compared with direct defense of the tail region of gunship.
- gunship /
- small caliber High-Explosive(HE) munition /
- vulnerability /
- defense strategy /
- damage assessment

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图 1 静态破片飞散区

Figure 1. Static fragmentation zones

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图 2 武装直升机模型

Figure 2. Model of a gunship

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图 3 武装直升机A级毁伤树(部分)

Figure 3. A-level damage tree of gunship (portion)

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图 4 破片与武装直升机部件交会

Figure 4. Engagement of fragments and gunship parts

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图 5 武装直升机网格划分示意图(侧向遭受打击时)

Figure 5. Schematic diagram of mesh generation of gunship (attacked from side direction)

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图 6 破片在各静态飞散区内的数目

Figure 6. Quantity of fragments in static fragmentation zones

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图 7 武装直升机受攻击方向

Figure 7. Directions of attack to gunship

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图 8 武装直升机区域划分(底面)

Figure 8. Region division of gunship (bottom)

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图 9 武装直升机各区域防护效率(底面)

Figure 9. Defense effectiveness in different regions of gunship (bottom)

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图 10 布置隔板前后武装直升机毁伤概率分布对比

Figure 10. Comparison of gunship damage probability distribution before/after adding clapboard

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表 1 某武装直升机关键部件(部分)

Table 1. Critical parts of a gunship (portion)

名称	等效材料	等效靶板厚度/mm	部件类型
驾驶员	红松	25	人员
燃油箱	2A12	3	燃料箱
齿轮箱	2A12	20	机械类
弹药箱	2A12	10	弹药类
发动机	优质合金钢	6	机械类

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表 2 典型受攻击方向的武装直升机易损面积

Table 2. Vulnerable area of gunship in typical attack directions

φ_T/(°)	易损面积/m²
φ_T/(°)	θ_T=0°	θ_T=45°	θ_T=90°
0	0.81	5.00	5.73
45	4.65	5.53
90	6.10	6.27
135	6.52	6.50
180	1.92	6.28
225	6.76	6.97
270	6.16	6.25
315	4.78	5.58

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