典型金属加筋板鸟撞实验研究
Experimental Investigation of Bird Strike for Stiffened Metal Plate

以典型金属加筋板为鸟撞实验研究对象，采用数字图像相关法的非接触测试方法实现鸟撞区域测试点三维位移信息的测量，与传统的接触式测试方法相比，测试精度和可靠性得到了提高。并通过分析高速摄像结果，得到数值模拟中鸟体应采用的描述流体行为的本构模型。最后通过对比不同撞击点的实验结果，确定了典型加筋板的鸟撞危险点，验证了加筋板不同的蒙皮-筋条间连接强度对结构抗鸟撞性能的影响。
The objective is to investigate a bird strike experiment in typical metal stiffened plate. Comparing with the traditional contact test methods, the 3D displacement curves of measured points in bird strike region for the stiffened metal plate is high accuracy and more reliable by applying digital image processing technology of non-contact measurement. Based on the high-speed video data, the numerical bird body should be simulated with a fluid constitutive model. Finally, the most dangerous impact point of the typical stiffened plate is determined with comparing the experimental results of different impact point, and the influence of different connection strength is confirmed by verifying the joining strength between the different bridge and skin