REPORT

2016 summer semester Flying Robot Project 4th Team CMay 04, 2016

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After the 3rd lecture, we took many technical advice on our plane’s design from teaching assistants. According to them, our flying wing would be a very unstable one because of the unique form which resemble a boomerang. In addition, two vertical fins on our flying wing wouldn’t pay off due to the overload to the main wing and the less effect on steerage. So we had to revise the design from the ground up.
Through exchanging each member’s ideas and opinions several times, we finally decided to pursue the original policy, namely, creating unique flying wing. To overcome the difficulties about the instability, we firstly recalculated the measurements of the main wing and this led to a smaller aspect ratio. Secondly, we determined to put away the idea of purposeless two vertical fins, and adopted one fin plan instead.
And thus, we were able to strengthen the foundations of the design, but some problems are still remained. For instance, we need a proficient operator to fly this plane since remote controlling a flying wing should be a very difficult one. We must keep in mind that these problems have to be somehow solved as early as possible, in order to meet with the flying plane of ours.

University of Tokyo, Department of Arts and Science, Sophomore
Yuya Hamaguchi
TAの方々よりいただいた初期三面図へのフィードバックに基づき考えると、主翼の高いアスペクト比がピッチ方向の不安定さを増大していること、また、主翼両端に取り付けられた2つの垂直尾翼によって主翼に求められる強度が大きくなってしまうこと、垂直尾翼が十分なモーメントアームを得られずラダーの操舵性が低いことなどが直近の課題であった。操縦難度は依然高いままだが、垂直尾翼を1つにし、アスペクト比を小さくすることを決定、さらに重心位置を揚力作用点より前方に置くことで安定性を高めるという共通認識を立てることで今後への一定の方針が定まったところである。

東京大学教養学部理科二類2年
浜口佑也

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