摘要
新型复合动力无人飞行器是一种能低空飞行的混体飞行器,主要结构包括气囊、涵道系统和拉力螺旋桨,具有起降方便、稳定安全、载荷大、效率高、成本低的优点,适用于航空物探、航拍观察、农林作业、物资运输及抗震救灾等方面。本研究在该无人飞行器总体方案的基础上,对其涵道系统进行参数设计及优化分析。主要利用Fluent软件对涵道模型进行数值模拟,通过结果的对比分析,得到适合涵道本体的结构参数:桨涵间隙δ=4 mm;涵道高度H=240 mm;桨盘位置h=80 mm;涵道锥角β=5°。
The new type hybrid power Unmanned Aerial Vehicle （UAV） can fly at low altitude. The airframe related components mainly include airbag, ducted-fan and pull propellers. The UAV have the advantage of conveniently taking off and landing, safety, high efficiency and low cost, so that can be applied to fields of airborne geophysical prospecting, air transport, aerial observation, agriculture and forestry, air goods transportation and earthquake relief, etc. Based on the overall scheme of this new type UAV, the structural parameters of the rotor and ducted body were designed and optimized in this paper. FLUENT software was mainly used to carry on numerical simulation of ducted-fan model. Through the contrastive analysis of the results, the optimal structure parameters can be obtained, the gap between the tip of paddle and duct 8 is 4 mm, the duct height H is 240 mm, the rotor disc position h is 80 mm, the ducted cone angle β is 5°.
出处
《南昌航空大学学报（自然科学版）》
CAS
2013年第3期44-48,共5页
Journal of Nanchang Hangkong University(Natural Sciences)
基金
国家自然科学基金(51266012)
江西省研究生创新基金(YC2012-S103)
关键词
复合动力
无人飞行器
涵道系统
优化分析
数值模拟
hybrid power
unmanned aerial vehicle
dueted-fan
optimized analysis
numerical simulation
