Two-Dimensional Aerodynamic Models of Insect Flight for Robotic Flapping Wing Mechanisms o

Two-Dimensional Aerodynamic Models of Insect Flight for Robotic Flapping Wing Mechanisms of

Maximum Efficiency

Thien-Tong Nguyen ;Doyoung Byun

【期刊名称】《仿生工程学报（英文版）》 【年(卷),期】2008(005)001

【摘要】In the \aerodynamic models of flapping wing motions are analyzed with focus on different types of wing rotation and different positions of rotation axis to explain the force peak at the end of each half stroke. In this model, an additional velocity of the mid chord position due to rotation is superimposed on the translational relative velocity of air with respect to the wing. This modification produces augmented forces around the end of eachstroke. For each case of the flapping wing motions with various combination of controlled translational and rotational velocities of the wing along inclined stroke planes with thin figure-of-eight trajectory, discussions focus on lift-drag evolution during one stroke cycle and efficiency of types of wing rotation. This \quasi-steady\approach provides a systematic analysis of various parameters and their effects on efficiency of flapping wing mechanism. Flapping mechanism with delayed rotation around quarter-chord axis is an efficient one and can be made simple by a passive rotation mechanism