两自由度微扑翼飞行器升阻力系数分析  

Analysis on Lift and Drag Coefficient of Flapping Wing Micro Air Vehicles with Two Degree of Freedom

作　　者：李德宝[1] 舒宁[1] 王洪洋[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院,合肥230009

出　　处：《机械工程师》2015年第7期48-51,共4页Mechanical Engineer

摘　　要：在微型扑翼飞行器的分析和结构设计中,翅翼运动所产生的升阻力系数具有重要的研究意义。运用CFD分析软件Fluent以及三维建模软件对所设计的两自由度扑翼飞行器结构进行了仿真研究,研究结果显示升阻力系数在不同的运动模式下是有明显差异的,对比翅翼单一沉浮运动时的升阻力系数和基于凸轮机构沉浮加俯仰运动时的升阻力系数,结果表明后者可获得更大的升力系数和更小的阻力系数,更加有利于飞行,为实物的研制提供了依据。In the analysis and design of micro air vehicle, lift and drag coefficient of the flapping wing motion which is resulted from the CFD analysis software FLUENT,is of great research significance. The design of flapping wing flight vehicle structure with two degree of freedom is simulated using three-dimensional modeling software, and the result shows that different flapping motions will lead to obvious different lift and drag coefficient. Comparing the lift and drag coefficient which is based on the simple ups and downs movement with pitching movement driven by cam mechanism,the latter can get a bigger lift coefficient and smaller drag coefficient,which is more conducive to flight and provides a theory basis for the development of the physical.

关 键 词：微型扑翼飞行器 FLUENT 两自由度 升阻力系数 

分 类 号：TH16[机械工程—机械制造及自动化] V224[航空宇航科学与技术—飞行器设计]