一种新型扑翼机构的设计与仿真实验

Design and simulation experiment on a new-type flapping wing mechanism

针对微型扑翼胸腔式机构制作工艺复杂的特点,提出了一种新型的悬臂梁式机构,以3D打印技术为依托实现一体化制作。建立了此结构的动力学模型,得到了翅膀运动阻力的变化形式,给出了系统运动的周期规律。为更加准确地分析机构动力学特性,利用COMSOL软件进行了动力学仿真,印证了模型的理论推导。同时制作了一款样机,进行了实验并利用高速摄像机记录运动过程。实验结果表明,此设计能够实现仿生翅所需运动,证实了此设计的可靠性。

In consideration of the characteristics of micro flapping wing thorax mechanism,a new-type cantilever structure was presented,which was relied on the 3 D printing technology.Dynamic model of the structure was established and the variation form of wing＇s motion resistance and periodic law of the motion of the system were got.COMSOL was used for dynamic simulation,which was aimed to analyze the characteristics of dynamics,and the results proved that the derivation of the model was correct.Finally,we made a prototype for the experiment and recorded its motion by high speed camera.The motion shows that bionic wing is able to achieve its function,and this design is reliable.