As the basis of flight behavior, the initiation process of insect flight is accompanied by a transition from crawling mode to flight mode, and is clearly important and complex. Insects take flight from a vertical surface, which is more difficult than takeoff from a horizontal plane, but greatly expands the space of activity and provides us with an excellent bionic model. In this study, the entire process of a butterfly alighting from a vertical surface was captured by a high-speed camera system, and the movements of its body and wings were accurately measured for the first time. After analyzing the movement of the center of mass, it was found that before initiation, the acceleration perpendicular to the wall was much greater than the acceleration parallel to the wall, reflecting the positive effects of the legs during the initiation process. However, the angular velocity of the body showed that this process was unstable, and was further destabilized as the flight speed increased. Comparing the angles between the body and the vertical direction before and after leaving the wall, a significant change in body posture was found, evidencing the action of aerodynamic forces on the body. The movement of the wings was further analyzed to obtain the laws of the three Euler angles, thus revealing the locomotory mechanism of the butterfly taking off from the vertical surface.

作为飞行行为的基础，昆虫飞行的起始过程伴随着从爬行模式到飞行模式的转变，显然是重要而复杂的。昆虫从垂直面起飞，比从水平面起飞更困难，但大大扩展了活动空间，为我们提供了一个极好的仿生模型。在这项研究中，高速摄像系统捕捉了蝴蝶从垂直表面降落的整个过程，并首次准确测量了蝴蝶的身体和翅膀的运动。分析质心运动后发现，起爆前垂直于壁面的加速度远大于平行于壁面的加速度，反映了起爆过程中腿的积极作用。然而，身体的角速度表明，这个过程是不稳定的，随着飞行速度的增加，稳定性进一步下降。比较离开墙壁前后身体与垂直方向的夹角，发现身体姿势发生了显着变化，证明了空气动力对身体的作用。进一步分析翅膀的运动，得到三个欧拉角的规律，从而揭示蝴蝶从垂直面起飞的运动机制。证明空气动力对身体的作用。进一步分析翅膀的运动，得到三个欧拉角的规律，从而揭示蝴蝶从垂直面起飞的运动机制。证明空气动力对身体的作用。进一步分析翅膀的运动，得到三个欧拉角的规律，从而揭示蝴蝶从垂直面起飞的运动机制。