| 武志博,孙传猛,焦斌,温竞龙,辛泽洲,汪博.基于电涡流效应的引信过载脉冲幅值调节方法[J].装备环境工程,2024,21(8):1-8. WU Zhibo,SUN Chuanmeng,JIAO Bin,WEN Jinglong,XIN Zezhou,WANG Bo.Method for Adjusting the Amplitude of Fuze Overload Pulse Based on Eddy Current Effect[J].Equipment Environmental Engineering,2024,21(8):1-8. |
| 基于电涡流效应的引信过载脉冲幅值调节方法 |
| Method for Adjusting the Amplitude of Fuze Overload Pulse Based on Eddy Current Effect |
| 投稿时间：2024-06-19 修订日期：2024-07-22 |
| DOI：10.7643/issn.1672-9242.2024.08.001 |
| 中文关键词: 引信 电涡流效应 幅值调节 高g值过载 仿真验证 COMSOL中图分类号:TJ430.6 文献标志码:A 文章编号:1672-9242(2024)08-0001-08 |
| 英文关键词:fuze eddy current effect amplitude adjustment high-g-value overload simulation verification COMSOL |
| 基金项目:国家自然科学基金(62371425)；山西省科技创新人才团队项目(202304051001030)；山西省科技成果转化引导专项(2021104021301061) |
|
|
| Author | Institution |
| WU Zhibo | School of Electrical and Control Engineering,Taiyuan 030051, China ;State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China |
| SUN Chuanmeng | School of Electrical and Control Engineering,Taiyuan 030051, China ;State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China |
| JIAO Bin | School of Electrical and Control Engineering,Taiyuan 030051, China ;State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China |
| WEN Jinglong | School of Electrical and Control Engineering,Taiyuan 030051, China |
| XIN Zezhou | School of Electrical and Control Engineering,Taiyuan 030051, China |
| WANG Bo | Chinese People's Liberation Army 4808 Factory Ordnance Repair Factory, Shandong Qingdao 266042, China |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 解决引信及其关键部件抗过载性能测试实验室模拟加载与实际发射差异较大的技术难题。方法 在引信被测试件底部粘贴铝贴片，并在冲击锤上缠绕励磁线圈，使其通入交变电流以产生瞬变磁场，在冲击锤靠近引信试件的过程中，铝贴片内的磁通发生变化，感应产生电涡流。涡流磁场与激励磁场相互作用，产生阻碍二者之间相对运动的电磁力，以此来实现对过载脉冲波形的调节和整定。结果 建立了激励线圈积分圆环的数学模型，推导了电涡流阻力的表达式。利用COMSOL Multiphysics软件建立了电涡流缓冲器的动力学模型，对其进行了仿真验证。在输入电流为10 000 A时，冲击过载幅值小于10 000g，无法满足引信抗过载模拟试验要求；当输入电流为15 000 A时，冲击过载幅值为15 232.9g；当输入电流为20 000 A时，冲击过载达到27 222.8g，冲击过载过高，容易造成试件强度失效。因此，选取输入电流为10 000~15 000 A较为合理。结论 该方法能够实现对高g值过载脉冲幅值的可控调节。 |
| 英文摘要: |
| The work aims to solve the technical problem of significant differences between simulated loading and actual launch in the overload resistance performance testing laboratory of fuzes and their key components. An aluminum patch was attached to the bottom of the tested piece of the fuze, and the excitation coil was wrapped around the impact hammer to generate a transient magnetic field by passing alternating current. As the impact hammer approached the test piece of the fuze, the magnetic flux inside the aluminum patch changed, inducing eddy currents. The interaction between eddy current magnetic field and excitation magnetic field generated electromagnetic force that hindered the relative motion between the two, thereby achieving the adjustment and tuning of overload pulse waveform. A mathematical model of the excitation coil integral ring was established, and the expression of eddy current resistance was derived. A dynamic model of the eddy current buffer was established by COMSOL Multiphysics software and the simulation verification was conducted. When the input current was 10 000 A, the amplitude of the impulse overload was less than 10 000g, which could not meet the requirements of the fuze overload simulation test. When the input current was 15 000 A, the amplitude of the surge overload was 15 232.9g. When the input current was 20 000 A, the impact overload reached 27 222.8g. The high impact load would cause the strength failure of the tested piece easily. Therefore, selecting an input current of 10 000~15 000 A was more reasonable. This method can achieve controllable adjustment of the amplitude of high g-value overload pulses. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
