装药过载环境力等效模拟实验技术研究

杜烨; 周炜智; 黄求安; 李强

doi:10.11883/bzycj-2024-0048

装药过载环境力等效模拟实验技术研究

doi: 10.11883/bzycj-2024-0048

杜烨^1,,
周炜智¹,
黄求安²,
李强^1, ,

1.
中北大学机电工程学院，山西太原 030051
2.
中国兵器装备集团自动化研究所有限公司，四川绵阳 621000

基金项目: 军科委基础加强技术领域基金（2021-JCJQ-JJ-1195，2023-JCJQ-JJ-0264）；山西省自然科学基金面上项目（20210302124196，202203021211097）

详细信息

作者简介:
杜　烨（1979－　），女，博士，副教授，29872858@qq.com

通讯作者:
李　强（1985－　），男，博士，副教授，liqiang1170@126.com

中图分类号: O389; TQ560.1
计量
- 文章访问数: 169
- HTML全文浏览量: 53
- PDF下载量: 63
- 被引次数: 0
出版历程
- 收稿日期: 2024-01-31
- 修回日期: 2024-03-28
- 网络出版日期: 2024-03-29
- 刊出日期: 2024-07-15

Research on an equivalent simulation experimental technology for overloading environmental forces of charge

DU Ye^1
,,
ZHOU Weizhi¹,
HUANG Qiuan²,
LI Qiang^{1
, ,}

1.
College of Mechatronic Engineering, North University of China, Taiyuan 030051, Shanxi, China
2.
Automation Research Institute Co., Ltd., China South Industries Group Corporation, Mianyang 621000, Sichuan, China

摘要

摘要: 为解决装药安全可靠性能实验成本高、强过载环境测试难度大等瓶颈问题，以等效模拟弹体侵彻钢板时内部装药过载环境力为目标，基于数值模拟方法，设计了装药过载环境力等效模拟实验装置，并开展了等效模拟实验，突破了同时满足加载压力大于1 GPa和脉冲宽度大于100 μs的技术难点。结果表明，弹丸侵彻钢板时装药受到的过载为正弦波单脉冲。在装置中采用波形调整器不仅能够调控加载到待测药表面的波形，还能对压力的衰减产生大幅影响。随着波形调整器厚度的增大，加载在待测药表面的压力逐渐减小，脉冲宽度显著增大；随着飞片厚度增大，飞片获得的驱动速度逐渐减小，加载在待测药表面的压力明显减小，脉冲宽度变化不明显。装药过载环境力模拟装置形成的脉冲特征值与弹丸侵彻钢靶过程的数值模拟结果对比，超压峰值误差最高为5.71%，脉宽误差最高为14.8%，均低于15%，验证了用该装置模拟弹体侵彻钢靶时装药加载状态的等效性。
- 过载环境力 /
- 等效模拟实验 /
- 飞片冲击 /
- 侵彻加载
Abstract: To solve the bottleneck problems such as the high cost of charge safety and reliability test and the difficulty of strong overload environment test, the overload environment of the charge when a projectile penetrates a steel plate was simulated using AUTODYN finite element numerical simulation software, aiming at the equivalent simulation of the overload environmental force of the internal charge when the projectile penetrates the steel plate. Based on the parameters of the waveform, pressure peak, and pulse width obtained from the simulation, a charge loading simulation experimental device composed of an initiation system, loading system, auxiliary system, and pressure test system was designed, and the charge overload environmental force equivalent simulation experiment was carried out. To a certain extent, the equivalence of the charge loading state, when the experimental system simulated the projectile penetrating the steel target at a speed of 500−1200 m/s, was verified, which broke through the requirement that the loading pressure was greater than 1 GPa and the pulse width was greater than 100 μs. The results indicate that the overload pulse received by the projectile penetrating the steel plate charge is a sine wave single pulse. The waveform adjuster can not only regulate the generated waveform but also have a significant impact on the attenuation of pressure values. As the thickness of the waveform adjuster increases, the pressure loaded on the surface of the test drug gradually decreases, and the pulse width significantly increases. As the thickness of the flyer increases, the driving speed obtained by the flyer gradually decreases, and the pressure loaded on the surface of the test drug significantly decreases, with no significant change in pulse width. The comparison between the pulse characteristic values formed by the loading simulation test device and the numerical simulation results of the projectile penetrating the steel target shows that the maximum error of the overpressure peak is 5.71%, and the maximum error of the first peak pulse width is 14.8%, both lower than 15%. This verifies the equivalence of the loading state of the propellant when the test system simulates the projectile penetrating the steel target.
- overload environmental forces /
- equivalent simulation test /
- flyer impact /
- penetration loading

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图 1 装药结构模型

Figure 1. Charge structure model

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图 2 弹丸网格划分

Figure 2. Mesh division of a projectile

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图 3 弹丸以1000 m/s的速度侵彻靶板时载荷在弹体中的传播云图

Figure 3. Cloud maps of load propagation in the projectile body when the projectile penetrates the target plate at a velocity of 1000 m/s

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图 4 弹丸以不同的速度侵彻时装药的加载波形

Figure 4. Waveforms of loads on the charges at different penetration velocities of the projectiles

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图 5 装药冲击过载测试装置

Figure 5. The device for testing the impact overload on the charge

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图 6 压力测试系统

Figure 6. Pressure testing system

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图 7 实验现场布置

Figure 7. Experimental site layout

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图 8 典型工况实验后场景

Figure 8. Scenes after experiment under typical working conditions

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图 9 相同工况下2种波形调整器加载信号对比

Figure 9. Comparison of loading signals between two waveform adjusters under the same condition

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图 10 A型波形调整器同为13 mm，厚度飞片不同加载条件下的压力-时间曲线

Figure 10. Loading pressure-time curves under impact of flyers with different thicnesses when A-type waveform adjusters are all 13 mm in thickness

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图 11 A型波形调整器厚度不同，片厚度同为3.5 mm加载条件下的压力-时间曲线

Figure 11. Loading pressure-time curves under impact of the flyers with 3.5 mm all in thickness when the A-type waveform adjusters are different in thickness

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表 1 弹丸以不同的速度侵彻时装药试样加载数据

Table 1. Data of loads on the charge samples at different penetration velocities of the projectiles

侵彻速度/(m∙s⁻¹)	压力峰值/GPa	脉冲宽度/μs
500	0.66	103
800	0.85	103
1000	1.05	101
1200	1.23	98
1500	1.51	96

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表 2 实验方案及测试数据

Table 2. Experimental plan and test data

实验编号	d_f/mm	波形调整器材料	d/mm	p_p,e/GPa	$ \dfrac{{{p_{{\text{p,e}}}} - {p_{{\text{p,s}}}}}}{{{p_{{\text{p,e}}}}}} \times 100{\text{%}} $	τ_e/μs	$ \dfrac{{{\tau _{\text{s}}} - {\tau _{\text{e}}}}}{{{\tau _{\text{e}}}}} \times 100{\text{%}} $
1	2.0	聚乙烯基（A）	13	1.27	−3.2	97	11.6
2	3.5	聚乙烯基（A）	13	1.02	2.9	102	14.8
3	5.0	聚乙烯基（A）	13	0.83	2.4	111	1.0
4	7.5	聚乙烯基（A）	13	0.70	−5.7	112	−1.9
5	2.0	橡胶基（B）	13	1.17	−1.7	134	−10.4
6	3.5	橡胶基（B）	13	0.94	−4.3	110	−12.7
7	5.0	橡胶基（B）	13	0.77	−9.1	122	−3.3
8	7.5	橡胶基（B）	13	0.55	12.7	128	−2.3
9	3.5	聚乙烯基（A）	5	1.09	−3.7	87	5.7
10	3.5	聚乙烯基（A）	25	0.87	5.7	102	−2.9
11	3.5	聚乙烯基（A）	35	0.77	−10.4	126	1.6

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