民用轻小型无人机跌落测试试验及损伤特性研究

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (22) : 175-181.

论文

郭亚周1，刘小川1，白春玉1，张永杰2，黄颖杰2，王亚锋1

作者信息 +

Drop test and damage characteristics of civil light and small UAVs

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

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文章历史 +

摘要

为初步探索民用轻小型无人机跌落撞击损伤特性，我们开展了两种民用轻小型无人机跌落撞击测试试验，研究了民用轻小型无人机在一定高度跌落时的撞击载荷、变形模式等无人机跌落损伤特性，对比分析了不同类型无人机结构差异性带来的跌落损伤和载荷差异性，研究结果表明：无人机采用一体式铝合金起落架能够在跌落的过程中通过有效的起落架屈曲变形来达到吸能降载的效果，而嵌入式起落架吸能效果相对较差；当多旋翼无人机以垂直姿态跌落时，损伤主要集中在起落架、机臂以及机身底部上，特别是机臂在跌落过程中有在根部折断的风险，无人机机臂根部连接强度可进行适当优化和加强；外部卡扣式电池相比于内嵌式电池在受强载荷冲击时会飞离机体，可能发生二次撞击，内嵌式电池相比于外部卡扣式电池安全性更高。

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.

导出引用

郭亚周1，刘小川1，白春玉1，张永杰2，黄颖杰2，王亚锋1. 民用轻小型无人机跌落测试试验及损伤特性研究[J]. 振动与冲击, 2021, 40(22): 175-181

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

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