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大型飞行器因承受时变气动载荷经常发生动态弹性变形,其形态会对燃油效率、飞行安全和气动性能等产生重要影响。论文采用立体相机采集模型变化视频图像,使用环形编码标志点解决同名点的立体匹配和目标跟踪问题,重建各个时刻标志点三维坐标并对其运行轨迹进行跟踪,从而获取大型飞行器动态变形、应变分布等动态数据,开发出了动态测量系统并进行了应用实验。
Large aircraft often undergo dynamic elastic deformation due to time-varying aerodynamic loads, and their shape will have an important impact on fuel efficiency, flight safety and aerodynamic performance. The paper adopts stereo camera to capture the video images of the model, solve the stereo matching and target tracking problem of the same name by using the ring coded mark points, reconstruct the three-dimensional coordinates of the mark points at each moment and track its running track to obtain the dynamic deformation and strain distribution of the large aircraft And other dynamic data, developed a dynamic measurement system and conducted an application experiment.