破片冲击作用下油箱动力学响应行为实验研究

贾豪博; 任柯融; 卿华; 张景飞; 徐文涛; 唐光武

doi:10.21656/1000-0887.440002

破片冲击作用下油箱动力学响应行为实验研究

doi: 10.21656/1000-0887.440002

贾豪博^1, ,,
任柯融^{2, 3},
卿华²,
张景飞¹,
徐文涛¹,
唐光武⁴

1.
郑州大学力学与安全工程学院，郑州 450000
2.
空军工程大学航空机务士官学校，河南信阳 464000
3.
国防科技大学理学院，长沙 410008
4.
招商局重庆交通科研设计院有限公司桥梁工程结构动力学国家重点实验室，重庆 400067

详细信息

通讯作者:
贾豪博(1998—)，男，硕士生(通讯作者. E-mail: renkerong@nudt.edu.cn)

(我刊编委唐光武来稿)
中图分类号: O38
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- 文章访问数: 211
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- 被引次数: 0
出版历程
- 收稿日期: 2023-01-04
- 修回日期: 2023-02-20
- 刊出日期: 2023-08-01

Experimental Study on Dynamic Responses of Fuel Tanks Under Fragment Impacts

1.
School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450000, P.R.China
2.
Aviation Maintenance NCO Academy, Air Force Engineering University, Xinyang, Henan 464000, P.R.China
3.
College of Sciences, National University of Defense Technology, Changsha 410008, P.R.China
4.
State Key Laboratory of Bridge Engineering Structural Dynamics, China Merchants Chongqing Communications Technology Research & Design Institute Co., Ltd., Chongqing 400067, P.R.China

(Contributed by TANG Guangwu, M. AMM Editorial Board)

摘要

摘要: 研究了破片冲击作用下的油箱动力学响应行为. 通过开展弹道冲击实验，使用高速摄像机对实验过程进行记录，利用三维数字图像相关技术测试了后壁板的响应历史，分析了油箱在不同破片入射速度下的毁伤形式及动态响应行为. 结果表明：当破片以955~1 667 m/s的速度冲击油箱时，前壁板的损伤形式为圆形孔洞，后壁板损伤形式为花瓣形破口；随着破片入射速度的提升，后壁板的动态响应速度和应变水平都有了显著提升；后壁板的动态响应主要包括后壁板中心区域塑性变形和后壁板整体变形两个阶段；随着后壁板变形程度增大，在对角线和板边位置处产生了塑性铰线.
- 破片冲击 /
- 油箱 /
- 水锤效应 /
- 动态响应 /
- 数字图像相关
Abstract: The dynamic responses of fuel tanks under fragment impacts were investigated. The ballistic impact tests on fuel tanks were carried out, the test processes were recorded with a high-speed camera, the dynamic morphologies of the fuel tank back wall were obtained with the 3D digital image correlation technique, and the damage forms and dynamic responses of the tanks under different fragment impact velocities were analyzed. The results show that, the damage to the tank front wall is in the form of circular holes and that to the back wall is in the form of "petal-shaped" breaches with radial cracks at fragment impact velocities of 955~1 667 m/s. The dynamic response speed and strain level of the tank back wall dramatically increases with the fragment impact velocity. The dynamic response of the tank back wall mainly includes 2 parts: the plastic deformation of the wall center and the overall deformation of the wall. With the increase of the deformation extent of the tank back wall, plastic hinge lines will occur along the wall diagonals and edges.
- fragment impact /
- fuel tank /
- hydrodynamic ram /
- dynamic response /
- digital image correlation
(Contributed by TANG Guangwu, M. AMM Editorial Board)
注释:

1) (我刊编委唐光武来稿)

HTML全文

图 1 实验布置图

Figure 1. The experimental layout

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图 2 随机散斑

Figure 2. Random speckles

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图 3 矫正板

Figure 3. The straightening plate

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图 4 油箱前后壁板的损伤尺寸

Figure 4. The dimensions of the damages to the front and rear walls of the fuel tank

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图 5 油箱前后壁板损伤形貌

Figure 5. Damage morphologies of the front and rear walls of the oil tank

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图 6 油箱后壁板高速摄影照片及DIC测试的z方向位移云图

Figure 6. High speed photographies of oil tank rear walls and displacement contours in the z-axis direction measured by DIC

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图 7 等效应变时程曲线

注为了解释图中的颜色，读者可以参考本文的电子网页版本，后同.

Figure 7. Effective strain time history curves

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图 8 不同入射速度下油箱后壁板高速摄影图

Figure 8. High speed photographies of the tank rear wall at different fragment impact velocities

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图 9 不同入射速度下后壁板典型位置等效应变时程曲线

Figure 9. Effective strain time history curves of the typical positions of the rear wall at different fragment impact velocities

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图 10 后壁板变形模式演变规律

Figure 10. Evolution laws of deformation modes of the rear wall

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表 1 实验工况

Table 1. The experimental working conditions

$\text { № . }$	fragment mass m/g	fragment impact velocity v/(m·s^-1)
1	6.7	955
2	6.8	1 195
3	6.8	1 364
4	6.7	1 667

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