扑翼微型飞行器的动力学建模

Dynamic Model of Flapping Wing Micro Air Vehicle

对鸟和昆虫的飞行机理进行了有价值的探讨,并对扑翼式微型飞行器机体动力学和机翼空气动力学进行了详细的分析。由此分析得出结论:机体所受外力为空气动力、自身重力和机翼作用于机体的驱动力,而采用扑动与扭转两个自由度飞行的机翼所产生的机体驱动力就是由瞬时平移力和旋转循环力合成的瞬时空气动力,从而得出了相应的参数方程以及整机动力学模型。对所建模型的仿真结果表明,只要合理选择参数,各种飞行过程能得到很好的模拟。

The flight mechanism of birds and big insects was probed valuably, and airframe dynamics and airfoil aerodynamics of Flapping Wing Micro Aerial Vehicle （FWMAV） were researched. The conclusion is that aerodynamic force, gravity, and impetus from airfoil act normal to airframe, for airfoil moment composed of two degrees of freedom for flapping and rotation, the impetus of FWMAV are its instantaneous forces which are represented as the sum of the instantaneous translational force and rotational force. So the relevant parameter equations were acquired and the dynamic model was established. Simulations on the proposed model demonstrate that the flight process can be simulated preferably if the relevant parameters are tuned reasonably.