China Safety Science Journal ›› 2021, Vol. 31 ›› Issue (2): 82-88.doi: 10.16265/j.cnki.issn 1003-3033.2021.02.012

• Safety engineering technology • Previous Articles     Next Articles

Experimental research on thermal damage of UAV in fire field

LI Liang1,2, LIU Xiaoyong2,3, XU Jianqiang1,2, LI Niansi2, WANG Jingwu2, XIAO Junfeng1   

  1. 1 College of Civil Engineering, Anhui Jianzhu University, Hefei Anhui 230601, China;
    2 Hefei Institute for Public Safety Research, Tsinghua University, Hefei Anhui 230601, China;
    3 Anhui Smart Safety Technology Co., Ltd., Hefei Anhui 230031, China
  • Received:2020-11-30 Revised:2021-01-16 Online:2021-02-28 Published:2021-08-18

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.

Key words: fire environment, unmanned aerial vehicle (UAV), thermal damage, flight test, fuselage temperature, environmental adaptability

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