摘要
针对小型无人机电源紧张、尺寸小、载重量低、飞行速度低的特点,机载吊舱平台的环控系统设计需要满足飞行包线范围内的制冷需求。结构紧凑、重量轻、低功耗的环控系统成为了无人机飞行器研究的重要课题。文中提出了一种对冲压空气压头进行补偿的新型空液换热子系统并将其应用于小型无人机的环控系统设计,阐述了该系统的设计思想和关键技术。采用6SigmaET软件进行了空液换热仿真,结果表明系统换热量达到1.6 kW。实验验证结果也说明该空液换热子系统增强了环控系统低空低速区域的制冷能力。综上所述,本系统是适用于小型无人机机载吊舱的一种经济、高效的环控系统。
In view of the characteristics of small unmanned aircraft vehicle(UAV),such as tight power supply,small size,low load capacity and low flight speed,the environmental control system design of the UAV pod needs to universally meet the cooling requirements within the range of the flight envelope.The environmental control system with compact structure,light weight and low power consumption has become an important topic in the research of UAV aircraft.This paper proposes a new type of air-liquid heat exchange subsystem that compensates for the entrance air pressure,and applies it to the design of the environmental control system of a small UAV.The design idea and the key technology of the system are discussed.The simulation of air-liquid heat exchange is carried out by using 6SigmaET software.Simulation results show that the heat exchange of the system reaches 1:6 kW.The experimental verification results also show that the air-liquid heat exchange subsystem enhances the cooling capacity of the environmental control system in the area of low altitude and low speed.In summary,this system is an economical and efficient environmental control system suitable for small UAV pod.
作者
谢明君
王建
XIE Mingjun;WANG Jian(The 54th Research Institute of CETC,Shijiazhuang 050081,China)
出处
《电子机械工程》
2021年第2期22-25,44,共5页
Electro-Mechanical Engineering
关键词
环控系统
空液换热
热仿真
environmental control system
air-liquid heat exchange
thermal simulation
