摘要
在仿生扑翼机的设计当中,仿生翅翼的气动力具有十分重要的意义。但由于与微型仿生扑翼飞行相关的低雷诺数空气动力学研究还处于初级阶段,对仿生翅翼气动力研究还没有成熟的理论和可借鉴的经验,因此,应用计算流体动力学软件Fluent求解N-S方程,分析扑动规律和周围气流环境对仿生扑翼机气动性能的影响。研究结果表明在对称扑翼机构驱动下仿生翅翼可以产生较大升力,升力和阻力随扑动频率和来流速度的增加而增加,但阻力增加幅度相对较小,这为仿生扑翼机的研制提供理论依据。
The aerodynamic force of bionic wing has. very important significance in the design of bionic flapping-wing robot. Be- cause the research of relevant micro-aerodynamics with low Renault number of flying by the micro-bionic flapping-wing robot is still in its primary stage, there are no mature theory and experience of reference for the study of aerodynamic force of bionic wing. So a compu- tational fluid dynamics software, named Fluent was employed to solve N-S function, by which influence on aerodynamic performance of the bionic flapping-wing robot caused by flapping mode and environmental airflow was analyzed. The results of this study show that bion- ic wing can get big lift force driven by symmetrical flapping wing mechanism, and the lift and drag forces are increased by increasing the flapping frequency and inlet flow velocity. However the drag force increasing range is relatively small, which provide theoretical ba- sis for the research and manufacture of bionic flapping-wing robot.
出处
《机床与液压》
北大核心
2015年第15期163-165,193,共4页
Machine Tool & Hydraulics
基金
中央高校基本科研业务费中国民航大学专项(3122013c010)
