某型无人机回收气囊缓冲性能试验研究  

Experimental Research on Buffer Performance of Recycling Airbag for a Drone

作　　者：高浩鸿 王欢欢 张红英[1] 童明波[1] GAO Haohong;WANG Huanhuan;ZHANG Hongying;TONG Mingbo(Ministerial Key Discipline Laboratory of Advanced Design Technology of Aircraft,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Engineer,Science and Technology on Space Physics Laboratory,China Academy of Launch Vehicle Technology,Beijing 100076,China)

机构地区：[1]南京航空航天大学飞行器先进设计技术国防重点学科实验室,南京210016 [2]中国运载火箭技术研究院空间物理重点实验室,北京100076

出　　处：《航天返回与遥感》2021年第2期30-38,共9页Spacecraft Recovery & Remote Sensing

基　　金：航空科学基金(20190715164246);江苏高校优势学科建设工程资助项目。

摘　　要：针对某型无人机全时段、全地形无损回收的要求,文章选用缓冲气囊的方式进行着陆回收。在前期理论研究及仿真分析基础上,通过搭建的试验平台系统对设计气囊进行投放试验,对影响气囊缓冲性能的着陆速度、排气口面积等因素进行分析,同时探究了不同地面条件对于气囊缓冲性能的影响。试验结果表明,气囊的内压峰值及最大过载与着陆速度成正比;根据仿真计算结果,选择了三组不同排气口径的气囊进行试验,并进行了分析。对于试验所选择的三组气囊,排气口直径80mm缓冲效果最好;不同地面环境对于气囊缓冲性能有一定影响,其影响程度取决于地面的力学特性,同样条件下较为松软的地面气囊缓冲性能更优。According to the requirements of a certain type of drone for full-time and all-terrain non-destructive recovery,the cushion airbag is selected.Based on the previous theoretical research and simulation analysis,the designed airbag was used in the experimental platform.The factors such as the landing speed and the vent area which affect the airbag cushioning performance is analyzed.And the impact of different ground conditions on the cushioning performance of the airbag was investigated.The test results show that the peak pressure of the airbag is directly proportional to the maximum overload and landing speed.According to the simulation calculation results,three groups of airbags with different exhaust diameters are selected for testing and analyzed.The 80 mm diameter airbag has the best cushioning performance among the three types of exhaust ports.Different ground environments have a certain influence on the cushioning performance of airbags,and the degree of influence depends on the mechanical characteristics of the floor,under the same conditions,the airbag cushioning performance on soft ground is better.

关 键 词：气囊缓冲 着陆速度 排气口面积 地面环境 无人机回收 返回技术 

分 类 号：V244.1[航空宇航科学与技术—飞行器设计]