| 火场环境下无人机热损伤试验研究 |
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| 引用本文： | 李亮,刘小勇,徐坚强,李念思,王静舞,肖峻峰.火场环境下无人机热损伤试验研究[J].中国安全科学学报,2021(2):82-88. |
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| 作者姓名： | 李亮 刘小勇 徐坚强 李念思 王静舞 肖峻峰 |
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| 作者单位： | 安徽建筑大学土木工程学院;清华大学合肥公共安全研究院;安徽泽众安全科技有限公司 |
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| 基金项目： | 国家重点研发计划项目(2018YFC0810600);安徽省中央引导地方科技发展专项项目(803214271050)。 |
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| 摘 要： | 无人机(UAV)逐步运用于火场搜救,但同时会因为火场高温而受损,为提高UAV在火场救援中的工作效率,设计一种UAV动态测试平台,开展UAV火场飞行试验;分析火场环境下UAV的热损伤情况,探究UAV在火场中的机身温度变化特征和UAV火场飞行安全距离。结果表明:火场热辐射和热对流是造成UAV热损伤的主要形式;旋翼产生的气流场对UAV机身有较为明显的降温效应,在试验工况下最高有25.6℃的降温作用;UAV与火焰的相对距离减少会增加机身的热损伤,在距离0.8 m处开始发生不可逆热损坏,试验工况下UAV火场飞行的安全距离为0.8 m。
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| 关 键 词： | 火场环境 无人机(UAV) 热损伤 飞行试验 机身温度 环境适应性 |
Experimental research on thermal damage of UAV in fire field |
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| LI Liang,LIU Xiaoyong,XU Jianqiang,LI Niansi,WANG Jingwu,XIAO Junfeng.Experimental research on thermal damage of UAV in fire field[J].China Safety Science Journal,2021(2):82-88. |
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| Authors: | LI Liang LIU Xiaoyong XU Jianqiang LI Niansi WANG Jingwu XIAO Junfeng |
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| Institution: | (College of Civil Engineering,Anhui Jianzhu University,Hefei Anhui 230601,China;Hefei Institute for Public Safety Research,Tsinghua University,Hefei Anhui 230601,China;Anhui Smart Safety Technology Co.,Ltd.,Hefei Anhui 230601,China) |
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| Abstract: | UAV has been gradually used in fire search and rescue,but at the same time,it can be damaged due to high temperature of fire.In order to improve efficiency of UAV in fire rescue,a dynamic test platform was designed,and flight test in fire site was carried out.Then,thermal damage of UAV in fire environment was analyzed,and change rule of fuselage temperature and safe distance of the vehicle were explored.The results show that heat radiation and convection are main forms of heat damage.Airflow field generated by rotors has a relatively obvious cooling effect on fuselage,cooling for 25.6℃at utmost under test condition.Reduction of relative distance between UAV and flame will increase thermal damage of fuselage which will be irreversible at 0.8 m,so this is the safe distance for UAV fire site flight under test condition. |
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| Keywords: | fire environment unmanned aerial vehicle(UAV) thermal damage flight test fuselage temperature environmental adaptability |
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