The aim of this paper is to study the phenomenon of bird strike during each phase of the impact and to present a numerical model for its prediction in order to develop the best practices to make a structural component resistant to bird strike. To this end, the Smooth Particle Hydrodynamics (SPH) bird model is developed and validated based on experiments by Barber and Wilbeck and two papers by Guida et al. The experiments considered the impact of small birds on rigid flat panels. Guida et al. developed a 8 lb bird model to predict the impact on a deformable small leading-edge bay and on a full-scale leading edge. The hydrodynamic theory is applied to determine the shock pressure, the shock equation of state, the stagnation pressure and the steady-state equation for water with different porosities. Subsequently, the bird structure is analyzed for different bird geometries and target models. This analysis allowed to design critical components of an aircraft structure, such as the leading edge of the C27J aircraft tail cone in compliance with current aviation airworthiness requirements.

本文的目的是研究撞击每个阶段的鸟击现象，并提出一个数值模型进行预测，以开发最佳实践，使结构部件能够抵抗鸟击。为此，基于 Barber 和 Wilbeck 的实验以及 Guida 等人的两篇论文开发和验证了平滑粒子流体动力学 (SPH) 鸟类模型。实验考虑了小鸟对刚性平板的影响。圭达等人。开发了一个 8 磅的鸟类模型来预测对可变形的小前缘舱和全尺寸前缘的影响。应用流体动力学理论确定不同孔隙度水的冲击压力、冲击状态方程、驻点压力和稳态方程。随后，针对不同的鸟类几何形状和目标模型对鸟类结构进行了分析。该分析允许设计飞机结构的关键部件，例如符合当前航空适航要求的 C27J 飞机尾锥的前缘。