Drop test and damage characteristics of civil light and small UAVs

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Journal of Vibration and Shock ›› 2021, Vol. 40 ›› Issue (22) : 175-181.

GUO Yazhou1,LIU Xiaochuan1,BAI Chunyu1,ZHANG Yongjie2,HUANG Yingjie2,WANG Yafeng1

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Abstract

In order to explore the drop damage characteristics of civilian light and small unmanned aerial vehicles (UAVs), we have carried out two types of civil light and small UAVs drop tests to study the impact load, deformation modes of them when they fall at a certain height. The fall damage and load differences caused by the structural differences of different types of UAVs have been compared and analyzed. The results show that the effective landing gear buckling and deformation is used to achieve the effect of energy absorption and load reduction when the UAV adopts an integrated aluminum alloy landing gear, while the energy absorption effect of the embedded landing gear is relatively poor; When the multi-rotor UAVs fall in a vertical upright attitude, the damage is mainly concentrated on the landing gear, the arm and the bottom of the fuselage. In particular, the arm is at the risk of breaking at the root during the fall. The root structure strength of the UAVs arm can be appropriately optimized and strengthened; Compared with the built-in battery, the external snap-on battery will fly away from the body when subjected to an impact, and a secondary impact may occur. The built-in batteries are safer than the external snap-on batteries.

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Civil light and small UAVs / Drop / Deformation modes / Damage characteristics / Energy absorption

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GUO Yazhou1,LIU Xiaochuan1,BAI Chunyu1,ZHANG Yongjie2,HUANG Yingjie2,WANG Yafeng1. Drop test and damage characteristics of civil light and small UAVs[J]. Journal of Vibration and Shock, 2021, 40(22): 175-181

References

[1] Jenkins D, Vasigh B. The economic impact of unmanned aircraft systems integration in the United States[J]. Association for Unmanned Vehicle Systems International (AUVSI); 2013. p. 1-40.
[2] Ruchti J, Senkbeil R, Carroll J, Dickinson J, Holt J, Biaz S. Unmanned aerial system collision avoidance using artificial potential fields[J]. Journal of Aerospace Information Systems，2014;11(3): 140 –144.
[3] 郭亚周,刘小川,郭军,等.微型无人机和鸟体撞击飞机风挡玻璃对比实验[J].实验力学, 2020,35(01):167-173.
Yazhou Guo, Xiaochuan Liu, Jun Guo, et al. Comparative experiment of aircraft windshield glass subjected to micrl-UAV and bird body impact[J]. Journal of Experimental Mechanics, 2020, 35(01): 167-173.(in Chinese)
[4] 无人驾驶航空器飞行管理暂行条例.国家空中管理委员会等.2018.
[5] D. Jenkins, B. Vasigh, The Economic Impact of Unmann- ed Aircraft Systems Integration in the United States[R], Association for Unmanned Vehicle Systems International (AUVSI), 2013, pp. 1–40
[6] EASA, Drone Collision Task Force, Final Report[R] 04-10-16, 2016
[7] Alexander Radi, Potential damage assessment of a mid-air collision with a small UAV[R], Civil Aviation Safety Authority of Australian report, 2013.
[8] Small Unmanned Aircraft Regulations(Part107). FAA, 2016.
[9] 轻小无人机运行规定（试行）. 中国民用航空局飞机标准司，2015.
[10] ASSURE, FAA sUAS COE Task A3: UAS Airborne Collision Hazard Severity Evaluation[R]. FAA, 2017.
[11] Meng xianghao, Sun Yingjun, Yu Jingyu, et al. Dynamic response of the horizontal stabilizer during UAS airborne collision[J]. International Journal of Impact Engineering, 2019,126:50-61.
[12] Xiaohua Lu, Xinchao Liu, Yulong Li, et al. Simulation of airborne collisions between drones and an aircraft windshield[J]. Aerospace Science and Technology, 2020, (1):1-15
[13] ASSURE, FAA UAS Center of Excellence Task A4: UAS Ground Collision Severity Evaluation[R]. FAA, 2016.
[14] EAMON T. Campolettano, Megan L. Bland, Ryan A. Gellner, et al. Ranges of Injury Risk Associated with Impact from Unmanned Aircraft Systems[J]. Annals of Biomedical Engineering, 2017, 45(12): 2733-2741.
[15] Choon Hian Koh,H.H.Low, Lei Li, et al. Weight threshold estimation of falling UAVs based on impact energy[J]. Transportation Research Part C, 2018,93:228-255.
[16] Gennarelli, T.A., Wodzin, E. The Abbreviated Injury Scale 2005[R]. American Association for Automotive Medicine (AAAM), Des Plaines
[17] Schimitt K U, NIEDERER P F, MUSER M H, 等. 汽车与运动损伤生物力学[M]. 曹立法，等译. 北京：机械工业出版社， 2012: 36.
Schimitt K U, NIEDERER P F, MUSER M H, et al. Trauma Biomechanics Accidental Injury Traffic and Sports[M]. Cao Libo, et al, translate. Beijing: China Machine Press, 2012: 36.(in Chinese)
[18] Shelley, A.V. A model of human harm from a falling unmanned aircraft: implications for UAS regulation a model of human harm from a falling unmanned aircraft: implications[J]. International Journal of Aviation, Aeronautics, and Aerospace, 2016, 3 (3), 1–42.
[19] Common Risk Criteria Standards for National Test Ranges: Supplement. Range Safety Group Risk Committee, 2007.
[20] Flight Safety Analysis Handbook – Version 1.0. FAA, 2011.