REPORT

2014 winter semester team A 8thJanuary 14, 2015

620

Weekly report from team A, making a manned ornithopter.
The first version of our airplane did not fly well because the motor unit’s lack of torque.
Based on this problem, we started to build a higher-torque motor unit, and downsize and lighten the main wings.
As for the motor unit, by this week we have almost finished it. We adapted an electric motor with a higher torque in comparison with the previous one; now the torque seems to be enough to flap the first large wings. A movie showing its operation can be found below.
As for the main wings, by this week we have finished making its frame, reducing the wing’s area from 17.3dm^2 to 13.5dm^2. The remaining work is only to put together the wing’s surface.
We will conduct a flight test on January 21st to test the performance of the new airplane.

Department of Aeronautics and Astronautics
Shintaro Sakaguchi
チームA(羽ばたき班)の今週の活動報告です.
トルク不足という初号機の課題を解決すべく,高トルクのモータ駆動部と,軽量小型化された主翼の製作をすすめました.
改良型モータ駆動部の作成はほぼ終了しました.高トルクのモータを採用して制作し,初号機の大きな主翼を取り付けても問題無く動作しました.その際の動画を以下に掲載します.
軽量小型化した主翼の作成は,骨格の作成を終え,翼面貼りの工程を残すのみとなりました.
1/21に飛行試験を行い,改良が適切であったかテストします.

工学部航空宇宙工学科
阪口信太朗

99

1st_wing_with_improved_motor_unit
初号機の主翼を改良モータで駆動しました.
特に羽ばたき開始時と羽ばたき終了時の挙動にトルクの向上を感じます.
https://www.youtube.com/watch?v=T65hXTy1oXw

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