小型电动无人机总体参数设计方法研究

Design Analysis Methodology for Electric-Powered Mini-UAV

小型电动无人机是目前无人机设计研究领域的重要方向之一。电池的比能量比功率低,电池在不同放电条件下具有不同的比功率,比能量也会发生相应的变化等,使得小型电动无人机在总体参数确定方法和参数的选择上,和以活塞式发动机为动力的无人机相比,具有不同的特点。文章通过电池重量系数等参数的引入,将传统飞机的总体参数确定方法拓展到小型电动无人机的总体参数设计中,研究了小型电动无人机总体参数确定方法和参数的选择过程,同时介绍了试验样机的飞行试验情况。

The design of electric-powered mini uninhabited aerial vehicle (mini-UAV) is a very interesting and valuable problem in the UAV design field. A design analysis methodology for electric-powered mini-UAV is described in this paper. The design procedure of electric-powered mini-UAV has some characteristics that are different from the traditional UAV that used piston engine because of the battery's low specific energy and specific power. By applying battery-fraction and motor-fraction to the design procedure, the traditional aircraft design methodologies have been adapted to address the peculiar characteristics of electric-powered mini-UAV. Results of flight tests of an electric-powered mini-UAV that was designed by using this methodology are presented, and they show that the methodology is useful in the conceptual design of electric-powered mini-UAV.