手のひらサイズの水陸両用ロボット:舵と二重プロペラによる推力差ピッチ制御
Swim-and-Breach at Palm Scale: A Rudder-Steered Two-Propeller Underwater Robot Platform with Differential-Thrust Pitch Control
手のひらサイズ(65mm、34g)の水中ロボットを開発し、二重プロペラの推力差とPID制御でピッチを、尾舵でヨーを制御。遊泳から跳躍までシームレスに行い、毎秒13.9体長で泳ぎ、体長の1.6倍の高さと3.7倍の距離を跳ぶ。
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著者: Daehyun Choi, Ian Bergerson, Hengjia Zhu, Tianjun Lan, Saad Bhamla
分類: cs.RO, physics.flu-dyn
原文アブストラクト
We present a palm-scale (65 mm, 34 g) swim-and-breach robot platform. Two vertically stacked propellers provide both propulsion and differential-thrust pitch control under a proportional-integral-derivative (PID) loop, and a tail rudder adds yaw control. The hull, evaluated by flow simulation, reduces the drag five-fold relative to an equivalent cuboid, and the propellers are optimized using B-series modeling validated by dynamometer measurements. The current robot swims at 13.9 body lengths per second and turns at 209 deg per second, corresponding to the upper limits reported for underwater robots. In free swimming, the pitch loop turns the body to any commanded nose-up pitch angle, and, with the rudder stabilizing the exit, the current robot leaps 1.6 body lengths high and 3.7 long in a seamless cruise-leap-cruise sequence. The platform can be used to build small-scale robots that cross barriers and dry gaps between pools for inspection in streams, flooded structures, and industrial systems.
関連論文
- 水陸両用ロボットの設計・移動・制御:最近の進歩水陸両用ロボット