Abstract:Aiming at the problem of wing damage caused by bird strikes during flight, this paper has carried out systematic mechanical analysis and numerical study. The wing is an important structural part of the aircraft, and bird strikes can cause dents, cracks, and holes in the wing, and even crash the plane in severe cases. In this paper, the smoothed particle hydrodynamics (SPH) method is used to study the dynamic response of bird impact on the leading edge of an aircraft wing. The special impact angles when birds strike the leading edge of the wing are focused on and analyzed. The results show that the damage caused by bird impact on the wing is the least severe when the impact angle is 71°. The effects of impact velocity, angle and position on wing dynamic response are also analyzed. This study not only provides a theoretical basis for the dynamic mechanical behavior of aircraft wings under bird impact, but also provides an important reference for the optimization of aircraft design and safety protection strategies.