CHINESE JOURNAL OF ENERGETIC MATERIALS
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基于激光加工的微安保机构设计与性能
作者:
作者单位:

1.西安电子科技大学 机电工程学院,陕西 西安 710071;2.陕西应用物理化学研究所 应用物理化学重点实验室,陕西 西安 710061

作者简介:

章云(1983-),男,副教授/博士生导师,主要从事智能传感与微执行器、新能源发电与换能技术研究。e-mail:yunzhang@xidian.edu.cn刘卫(1986-),男,高级工程师/博士,主要从事MEMS火工品技术研究。e-mail:peony1303@126.com

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基金项目:

陕西省重点研发计划项目(2023-YBGY-333),陕西省创新能力支撑计划(2023-CX-PT-30)


Design and Performance of Micro Safety and Arming Device Based on Laser Processing
Author:
Affiliation:

1.School of Mechanical and Electrical Engineering, Xidian University, Xi′an 710071, China;2.Science and Technology on Applied Physical Chemistry Laboratory, Shaanxi Applied Physics and Chemistry Research Institute, Xi′an 710061, China

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    摘要:

    复杂场景下火工品微安保机构需具有可恢复与抗过载特性,为此,研究设计了基于激光加工的金属材质电热驱动微安保机构,采用有限元模拟分析了镍基微电热执行器动作特性,通过调整双热臂U型电热执行器热臂和冷臂的长度、宽度以及各臂之间的间隙,探究它们对输出位移的影响;通过正交实验得到优化的超快激光加工工艺参数分别为频率100 kHz、能量113 μJ、切割速度100 mm·s-1,实现了镍基电热微安保机构的超快脉冲激光精确制造;最后,搭建了安保机构性能验证平台,验证了该机构在不同电流激励下的驱动位移与隔爆性能。结果表明,在8 A激励电流下,加工的镍基微安保机构驱动位移可达1084 µm,所组装的火工品微安保机构在传爆序列中能够有效隔爆。

    Abstract:

    In complex environment, the micro safety and arming (S&A) device of initiating explosive device needs to have recoverable and anti-overload characteristics. Therefore, this study designed a metal-based electrothermal-driven micro S&A device based on laser processing. The finite element simulation was used to analyze the action characteristics of the nickel-based micro-electrothermal actuator. By adjusting the length and width of the hot arm and the cold arm of the double-arm U-shaped electrothermal actuator and the gap between the arms, the influence of them on the output displacement was explored. Through orthogonal experiments, the optimized ultra-fast laser processing parameters were obtained as follows: frequency 100 kHz, energy 113 μJ, and cutting speed 100 mm·s-1, respectively. The ultra-fast pulse laser precision manufacturing of nickel-based electrothermal micro S&A device was realized. Finally, the performance verification platform of the micro S&A device was built, the driving displacement and explosion-proof performance of the mechanism under different current excitations were verified. The results show that the driving displacement of the processed micro S&A device can reach 1084 μm under the excitation current of 8 A, and the assembled micro S&A device of initiating explosive device can effectively isolate the explosion in the explosive sequence.

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引用本文

章云,姜倩,刘卫,等.基于激光加工的微安保机构设计与性能[J].含能材料, 2024, 32(1):83-91. DOI:10.11943/CJEM2023032.
ZHANG Yun, JIANG Qian, LIU Wei, et al. Design and Performance of Micro Safety and Arming Device Based on Laser Processing[J]. Chinese Journal of Energetic Materials, 2024, 32(1):83-91. DOI:10.11943/CJEM2023032.

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历史
  • 收稿日期: 2023-03-01
  • 最后修改日期: 2023-11-02
  • 录用日期: 2023-10-23
  • 在线发布日期: 2023-10-24
  • 出版日期: 2024-01-25