Experimental Study of Aerodynamic Behavior in Wind Tunnels with Ornithopter and Plane Models

There are similarities between planes and birds. In fact aerodynamics bases are the same. In order to make some comparisons, this paper presents two series of experiments : one in a wind tunnel with an ornithopter model for measurements of aerodynamic forces with flapping wings. The wing movement has two degrees of freedom flapping around the longitudinal axis of the model and feathering around the wing axis. Measurements of aerodynamic forces: lift and drag in static case averaging values during many cycles of movement and in dynamic case have been performed. The other part of the paper concerns velocity and turbulence measurements on a metal plane wall jet in a wind tunnel with and without a rough surface, with and without acoustic vibrations in order to simulate a plane wing. Aerodynamic characteristics have been obtained in all cases.     

《模型世界》2007年第7期读者调查表

老编:上次看到杂志中介绍遥控扑翼蜻蜓,感觉非常有趣,想多了解一些关于它的情况,扑翼飞机扑打翅膀可以飞行!但是转     

微型仿鸟扑翼飞机设计与仿真系统开发

基于仿生学的微扑翼飞行器是一种模仿鸟类飞行的新概念飞行器.鉴于扑翼飞行理论及实践本身的困难,为了减少设计制造中的风险,开发了微型仿鸟扑翼飞机设计与仿真系统.采用Visual C 和MATLAB进行仿生学设计模块、驱动机构和气动力计算模块的开发,由此进行扑翼飞机结构及动力学设计,生成初步样机.结合OpenGL技术,建立微型扑翼飞机的三维可视化结构模型,进行扑翼飞机的运动和虚拟飞行仿真.进行扑翼飞机的开发实例分析,结果与实际制作的扑翼飞机各项特征吻合.该系统有很高的实用价值,可以有效地辅助进行微型仿鸟扑翼飞机的研制工作.