| 陈磊,李海鹏,杨广明,李志豪,王征.高速催泪射流轨迹分析及抗风性能实验研究[J].装备环境工程,2024,21(7):67-73. CHEN Lei,LI Haipeng,YANG Guangming,LI Zhihao,WANG Zheng.Trajectory Analysis of High-speed Lachrymatory Jet and Experimental Research on Its Wind-resistant Performance[J].Equipment Environmental Engineering,2024,21(7):67-73. |
| 高速催泪射流轨迹分析及抗风性能实验研究 |
| Trajectory Analysis of High-speed Lachrymatory Jet and Experimental Research on Its Wind-resistant Performance |
| 投稿时间：2024-03-07 修订日期：2024-04-23 |
| DOI：10.7643/issn.1672-9242.2024.07.009 |
| 中文关键词: 高速催泪射流 瞬态采集 射流轨迹 抗风性能 着靶性能 效能评估中图分类号:TJ06 文献标志码:A 文章编号:1672-9242(2024)07-0067-07 |
| 英文关键词:high-speed lachrymatory jet transient collection jet trajectory wind-resistant performance target performance effectiveness evaluation |
| 基金项目:中央基本科研业务费专项资金重点项目(KYC23281) |
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| Author | Institution |
| CHEN Lei | The Third Research Institute of Ministry of Public Security, Shanghai 200120, China |
| LI Haipeng | The Third Research Institute of Ministry of Public Security, Shanghai 200120, China |
| YANG Guangming | The Third Research Institute of Ministry of Public Security, Shanghai 200120, China |
| LI Zhihao | The Third Research Institute of Ministry of Public Security, Shanghai 200120, China |
| WANG Zheng | The Third Research Institute of Ministry of Public Security, Shanghai 200120, China |
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| 中文摘要: |
| 目的 探究高速催泪射流轨迹和外界风环境对催泪剂着靶性能的影响。方法 通过搭建高速射流瞬态采集和抗风性能测试平台，系统研究射流动态特征及抗风性能，并与现行单警催泪喷射器进行对比。结果 高速催泪喷射器射流初始直径达5.5 mm，呈较为规整的柱状，初始速度达138.9 m/s。在1 m处，射流中心仍有明显的集束状，周围出现空泡现象，速度降为88.3 m/s。在3 m处，射流轨迹呈发散的胶丝状，速度降为42.9 m/s。单警催泪喷射器射流在0.2、1、3 m处的速度分别为7.9、20.7、7.5 m/s，射流在前进过程中逐渐分散成小颗粒状的液珠，并在3 m处出现整体轨迹向下偏移。在抗风性能上，使用模拟人体上躯干600 mm×900 mm靶标(瞄准脸部)，在0～4级侧向风作用下，高速催泪喷射器射流的着靶率为85.2%～57.4%，中心侧向偏移小于10 cm，而单警催泪喷射器射流着靶率为78.8%～4.2%，中心侧向偏移超过20 cm。结论 相比单警催泪喷射器，高速催泪喷射器的射流轨迹具有良好的集束性和定向性，射流速度整体更高，同时在抗风性能方面也具有明显优势。另外，射流轨迹特征对其抗风稳定性起到了关键作用。 |
| 英文摘要: |
| The work aims to explore high-speed lachrymatory jet trajectory and the effect of external wind environment on the target performance of lachrymator. A high-speed jet transient collection and wind resistance test platform was built to systematically study the jet’s dynamic characteristics and wind-resistant performance, and compare it with the current spray with lachrymator. Results showed that the high-speed lachrymatory jet presented regular column shape at the beginning with an initial diameter of 5.5 mm and an initial speed of 138.9 m/s; At 1 m, the jet had an obvious characteristic of clustering in the center with cavitation occurred around it , and the speed decreased to 88.3 m/s; At 3 m, the jet trajectory presented a divergent filamentous pattern, and the speed decreased to 42.9 m/s. While the speeds of the general lachrymatory jet were 7.9 m/s, 20.7 m/s and 7.5 m/s at 0.2 m, 1 m and 3 m respectively. The jet gradually dispersed into small granular liquid beads during the advancing process, and the overall trajectory moved downward at 3 m. In terms of wind-resistant performance, a 600 mm×900 mm target simulating the upper torso of the human body (aiming at the face) was used. Under the actions of level 0~4 side winds, the target rates of the high-speed lachrymatory jet were 85.2% to 57.4%, the center lateral deviation was less than 10 cm; While for the general lachrymatory jet, the target rates were 78.8% to 4.2% and the center lateral deviation was more than 20 cm. The high-speed lachrymatory jet trajectory has better characteristics of clustering and directionality compared with the general lachrymatory jet, meanwhile the speeds are higher overall. On the wind-resistant performance, the high-speed lachrymatory jet has obvious advantages also. In addition, it indicates that the dynamic characteristics of jet trajectory play a key role in wind stability. |
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