REPORT

2021 Autumn Semester Flying Robot Project Team A Article 1November 24, 2021

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Today we mainly worked on the skeleton of the vertical tail fin. Since our team only has first year undergraduates, we had a hard time making even the simplest crafts. This time, all we did was to cut the woods to size and lay them out on the mat.
We are making a biplane. The main wing will be an elliptical wing. We would like to start making the main wings as soon as possible, but there are some changes in the structure of the elliptical wing and we have not been able to start yet. The elliptical part is going to be made by roasting woods. Currently, it is taking a long time to create the data on CAD because of the complexity of the way the girders are inserted. Considering the direction of the grain of the wood to be used, we need to devise a way to make the leading and trailing edge materials that reflect the ellipse, as we are concerned about their strength. We are trying to compensate for this weakness by using two pieces of leading edge and trailing edge wood each, but this is taking a lot of time to design.
Next week, we are planning to use the laser cutter to cut out the ribs for the main wings and horizontal tail fin.
 今日は主に垂直尾翼の骨組みの作成を行いました。私たちのチームは学部一年生のみしかいないので、簡単な工作にも苦労しています。今回の作業は木材を寸法通りに切り出し、マット上に並べるだけで終わってしまいました。
 私たちは、複葉機を作成します。主翼は楕円翼です。早く主翼の作成に取り掛かりたいのですが、楕円翼の構造にいくつか変更があり、未だに着手できていません。楕円部分は木材を炙って形を作ろうとしています。現在、桁の入れ方が複雑なため、CAD上でのデータの作成に時間がかかっています。使用する木材の木目の方向を考えると、楕円を反映した前縁材や後縁材は強度に不安があるため、工夫が必要です。前縁材と後縁材をそれぞれ2枚にすることでその弱点を補おうとしていますが、その分設計に時間がかかっています。
来週は、主翼と水平尾翼のリブをレーザーカッターで切り出す作業を行う予定です。

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