扑翼飞行器机翼开孔对气动特性的影响研究

Study of opening holes on the wing of flapping-wing MAV and its effect on aerodynamic characteristic

论述了扑翼飞行器扑动升力产生的基本原理,提出采用机翼开孔的方式获得扑动升力的方法。通过风洞试验研究了翼面开孔对机翼气动特性的影响,结果表明机翼开孔可以有效获得扑动升力,降低扑动功耗,但会损失一定的推力。采用正交实验方法对风洞实验进行设计,构建机翼气动力关于实验参量的二次响应面方程,并通过响应面方程对开孔机翼的气动特性进行评价。结果表明所设计的开孔机翼最大起飞重量与无孔机翼相当,但其低速飞行能力较好,功率消耗较少,有望实现悬停飞行。

In this paper,we described the basic principle of lift production of the flapping wing MAV at first,and developed a method of boring holes on the wing to acquire the flapping-lift.The basal aerodynamic influence have been studied by wind tunnel experiment,the result indicated that the perforated wing can effectively obtain flapping-lift and reduce energy consume,but would lose some thrust.The wind tunnel experiment was arranged by perpendicular design,and built 2 ranks response surface model about the parameters in experiment,then used this model to estimate the aerodynamic performance of the perforated wing.Its shown that the maximal takeoff weight between the perforated wing and the imperforate wing was equivalent,but the perforated wing had preferably performance and less power consumption in low velocity,it＇s hopeful to realize hovering by this method.