In this paper, a flapping wing system utilizing extension spring and resonant frequency is
proposed. It uses extension spring instead of torsional spring, that makes the system simple …

In this paper, a comparison of yaw moment generation methods was conducted for a motor
directly driven flapping wing micro aerial vehicle equipped with a resonant flapping wing …

This paper proposes a direct-driven bi-directional actuation flapping wings system using an
extension spring instead of a torsional spring. Then, the proposed flapping-wing system's …