强脉冲电磁力驱动的冲击载荷

赵志衡; 汝楠; 马涌; 张超; 李春峰

doi:10.11883/1001-1455(2016)05-0710-05

强脉冲电磁力驱动的冲击载荷

doi: 10.11883/1001-1455(2016)05-0710-05

1.
哈尔滨工业大学电气学院, 黑龙江哈尔滨 150001
2.
哈尔滨工业大学材料学院, 黑龙江哈尔滨 150001

基金项目:

国家重点基础研究发展计划(973计划)项目 2011CB0128

哈尔滨市创新人才专项基金项目 2009RFQXG063

详细信息

作者简介:
赵志衡(1971—), 男, 博士, 教授, zhzhhe@hit.edu.cn

中图分类号: O389; TG391
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- 被引次数: 0
出版历程
- 收稿日期: 2015-01-13
- 修回日期: 2016-01-20
- 刊出日期: 2016-09-25

Impact load driven by high-power pulsed electromagnetic force

1.
Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China
2.
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China

摘要

摘要: 冲击载荷在材料科学与工程领域具有一定的应用。随着研究的深入, 对冲击速度、冲击能量提出了更高的需求, 是落锤所无法达到的。强脉冲磁场可由脉冲大电流产生, 通过合适的装置可产生强脉冲电磁力, 进而可转换为冲击载荷。通过数值模拟, 给出了强脉冲磁场、电磁力及冲头运动过程的数值模拟结果。采用高速摄像对该压缩冲击装置的运动过程进行记录, 通过对影像数据处理获得了冲击速度及冲击能量, 验证了模拟结果。
- 爆炸力学 /
- 冲击载荷 /
- 电磁力 /
- 强脉冲磁场 /
- 高速摄像
Abstract: Impact load is applicable to material science and engineering. With the research development, there is a higher requirement for the impacting velocity and energy, which are however beyond what the drop hammer can achieve. High-power pulse current can therefore be utilized to set up an intense pulsed magnetic field, and then high-power pulsed electromagnetic force (EMF) can be generated with proper equipments and converted to the impact load desired. In the present work we simulated the generation of the impact load driven by high-power electromagnetic force. The simulation results of high-power pulsed magnetic field, EMF and the punch movement process were obtained through numerical modeling. The high speed photography was used to record the movement of the compressing impact device. Through the image processing, the value of the impact velocity and impact energy is obtained that verified the simulation results.
- mechanics of explosion /
- impact load /
- electromagnetic force(EMF) /
- high-power pulsed magnetic field /
- high-speed photography

HTML全文

图 1 强脉冲磁场产生示意图

Figure 1. Generation of high-power pulsed magnetic field

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图 2 压缩冲击装置图

Figure 2. Schematic of impact compression equipment

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图 3 磁场场景图

Figure 3. Magnetic flux line

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图 4 电流分布

Figure 4. Distribution of current density

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图 5 电磁力分布

Figure 5. Distribution of electromagnetic force (EMF)

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图 6 电磁力-时间曲线

Figure 6. Curve of electromagnetic force vs. time

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图 7 冲头速度-时间曲线

Figure 7. Curve of punch velocity vs. time

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图 8 冲头位移-时间曲线

Figure 8. Curve of punch location vs. time

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图 9 不同时刻冲头位置图

Figure 9. Punch location at different time

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表 1 不同时刻位移速度测量结果

Table 1. Measured results of displacement and velocities at different time

s/mm	Δ s/mm	v/m·s^-1
15.916
15.714	0.202	2.02
15.207	0.202	2.02
13.324	1.833	18.33
10.627	2.697	26.97
7.214	3.413	34.13
3.581	3.633	36.33
0	3.581	35.81

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参考文献(14)

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