Aerodynamic Damping and Dynamic Stability of Flapping Flight

本研究的目的是基于我们最近发现的扑翼反扭矩和扑翼反力，模拟气动阻尼对扑翼飞行动力学和稳定性的影响。我们将采用实验和分析相结合的方法，包括使用动态尺度机器人机翼进行气动力测量，使用数字粒子图像测速技术进行流动可视化和测量，以及基于动力学和控制理论的数学建模。这项工作将为动物和人造系统的扑翼飞行提供科学基础和发展全面的理论。这是对不同飞行条件下扑翼飞行动力学建模的首次尝试，也是解释飞行动物为何具有优越的稳定性和机动性的第一步。研究成果将广泛传播到生物学、物理学和工程界。在这项工作中发展起来的理论可以转化为其他形式的运动，如走路、爬行和游泳。扑翼微型飞行器的研究进展可用于各种民用和国防用途。该项目将为研究生和本科生提供独特的跨学科培训环境。特别是，本科生研究人员将通过普渡大学SURF和NSF REU项目参与。

The objective of this research is to model the effect of aerodynamic damping on the dynamics and stability of flapping flight, based on our recent discovery of flapping counter torques and flapping counter forces. We will undertake a combined experiment and analytical method, including aerodynamic force measurements using dynamically scale robotic wings, flow visualization and measurement using Digital Particle Image Velocimetry, and mathematical modeling based on dynamics and control theories.This work will advance scientific bases and develop comprehensive theories of flapping flight in animals and man-made systems. It is the first attempt to model the flapping flight dynamics under different flight conditions and the first step in explaining why flying animals possesses both superior stability and maneuverability. The research results will be disseminated broadly to the biology, physics, and engineering communities. The theories developed in this work can be translated into other forms of locomotion such as walking, crawling and swimming. Advances in flapping wing micro aerial vehicles can be used in various civilian and defense applications. The project will provide a unique, interdisciplinary training environment for graduate and undergraduate students. In particular, the undergraduate researchers will participate through Purdue SURF and NSF REU programs.