Festo's Machine Zoo has recently added a new member, the Robot Bird. It weighs only 450g (15.87 ounces) and has a wingspan of 1.96m (6.4 feet) and is called SmartBird. SmartBird's flight modes and control mechanisms mimic the birds, which are very similar in shape to seagulls. Inspired by the silver gull, this extremely light machine bird can fly on its own, without the need for an additional drive system. The main body is powered by aerodynamics and is supplied by a torsion drive with a vector push, 23W battery. The twisting drive flaps its wings, it can glides, and it can climb and hover at high altitude.
Festo said that during the development of SmartBird, they successfully decrypted the flight of birds. The wings of the SmartBird can be slapped up and down (by means of a lever mechanism that increases the deflection angle throughout the torso to the wing tip) and can be twisted at a certain angle along the spanwise direction, making it the same as a real bird. The leading edge is upturned during the flapping of the wings.
The directional control is obtained by the opposite movement of the SmartBird head and the torso, and the two parts are synchronized by two sets of motors and cables. This allows it to conform to aerodynamic bending while achieving weight displacement and resulting in the agility and maneuverability of SmartBird.
Like real birds, SmarBird's tail is not just for display. It provides lift and doubles as an elevator and rudder. In addition to stabilizing the machine itself like the vertical stabilizers of conventional aircraft, the tail can be tilted to cause a turn and can be rotated about the longitudinal axis to produce yaw.
The SmartBird's torso is embedded with electricity, engine, crank gear and control adjustment equipment. The attitude and torsion of the wing can be monitored by two-way ZigBee wireless communication and can be adjusted and optimized in real time during flight.
Festo claims that the development of SmartBird has provided insights in many areas. The minimal use and lightweight construction of robotic materials enhances resource and energy efficiency, while the functional integration of coupled drive units provides companies with the opportunity to turn them into the development of hybrid drive technology. In addition, fluid characterization during development also contributes to future design optimization. Another point is that SmartBird will never steal your fries.
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