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无人机进行高空长航时不仅要注重载荷能力和工作效率,还需要注意气流对无人机的航时的影响作用。因此,不能为了提高装载力和气动力采用大展弦比轻机翼,将大展弦比轻机翼在气流的作用下对无人机性能的影响忽略不计。在对Helios事故的分析报告中明确指出没有真实可靠的反映结构动力学的分析工具及方法,是造成事故的主要原因。同时,也是目前研究高空长航时无人机设计需要关注的重点问题。
UAVs for high-altitude long-haul not only pay attention to load capacity and work efficiency, but also need to pay attention to the impact of airflow on the UAV’s impact. Therefore, the large aspect ratio light wing can not be used to improve loading capacity and aerodynamics, and the impact of the large aspect ratio light wing on the UAV performance under the airflow is neglected. In the analysis of Helios accident report clearly pointed out that no real and reliable structural dynamics analysis tools and methods, is the main cause of the accident. At the same time, it is also a key issue that needs to be paid attention to in the current UAV design research.