无人飞行器微型化的研究进展OA

With the breakthrough of MEMS,the miniaturization of unmanned aerial vehicles(UAV)has become a fron-tier research direction in aviation.The key technical problems and corresponding research progress in unmanned aerial vehicles'miniaturization is reviewed.Firstly,the principle of low Reynolds number aerodynamic effect hindering min-iaturization is discussed,and the essential limitation of aircraft design caused by the sharp reduction of aerodynamic effi-ciency is analyzed.Secondly,the research status of the miniaturization of unmanned aerial vehicles with different flight principles,such as fixed wing,rotor wing,and flapping wing,is described in detail,covering structural design,power supply and performance optimization,etc.It is pointed out that the miniaturization of flapping-wing unmanned aerial ve-hicles is the main development trend at present and has obtained rich research results in this field.In addition,the key technologies of flight control systems in the UAV miniaturization process are summarized,and the future research direc-tion is discussed.Finally,the broad application prospects of micro unmanned aerial vehicles in military and civil fields are prospected.It provides references and suggestions for further research on the miniaturization of unmanned aerial ve-hicles.