【作者】 段文博；

【导师】 昂海松；

【作者基本信息】 南京航空航天大学 ， 飞行器设计， 2008， 硕士

【摘要】 本文针对一种可悬停双旋翼微型飞行器进行了总体设计、计算流体力学数值计算,飞行动力学建模与配平计算和加工制造和飞行试验进行了研究。结合飞机总体设计的方法,提出了一种新的针对微型飞行器的总体设计重量估算方法。根据设计指标,进行了可悬停双旋翼微型飞行器总体设计,在CATIA中建立了三维模型。使用南京航空航天大学微型飞行器研究中心自行开发的3D2MUFS求解器,对设计好的微型飞行器进行了低雷诺数空气动力学计算与研究。根据常规螺旋桨气动计算方法,结合低雷诺数下微型螺旋桨翼型气动特性分析,利用修正后的动量法和叶素法组合方法对可悬停双旋翼微型飞行器旋翼的气动特性进行研究,并把此方法用于微型旋翼的建模。针对可悬停双旋翼微型飞行器,建立了低雷诺数飞行条件下考虑螺旋桨滑流影响的飞行动力学模型。在MATLAB/ Simulink仿真环境中构建了可悬停双旋翼微型飞行器的仿真模型,并运用建立的仿真模型对可悬停双旋翼微型飞行器进行了配平计算和稳定性分析。最后,完成了全机的结构设计,零件设计,并加工了样机,做了飞行试验。更多还原

【Abstract】 The design, the CFD numerical calculation, modeling of flight dynamics, the calculation of the trim, the airframe manufacturing and flight test of a Dual Rotor Micro Aerial Vehicle which can hover is studied in this paper.According to the target of the design, using an equation for estimating the the weight of MAV, and the method of aircraft design to complete the design.establishing a 3D model in CATIA. Numerical simulation of flow-field around Dual Rotor MAV is completed by using 3D2MUFS solver which is developed by MAV Center of Nanjing University of Aeronautics and Astronautics.The aerodynamic characteristic of micro propeller with low Reynolds numbers is studied in this paper. In order to compute the micro propeller aerodynamics approximately, a revised theory of combination of momentum theory and the blade element approach is applied. The theory has been used to establish the mathematical model of the rotor.The mathematical model of Dual Rotor MAV is built, and a model used for simlulation is built in the Matlab/Simulik simulation environment, then some analysis work is done to a unmanned tilt-rotor aircraft with the model ,so that we know much characteristic of the unmanned tilt rotor aircraft.Finally, the structure and part design of the Dual Rotor MAV is done in CATIA, the prototype of the Dual Rotor MAV is Manufactured and the flight tests is also been done.更多还原