Festo launches BionicOpter, inspired by nature 02 May 2013

Following its deciphering of bird flight, with the SmartBird, in 2010, Festo's developers have now risen to an even greater challenge – with the Bionic Learning Network modelling the dragonfly at a technical level.

The BionicOpter is an ultralight flying object that can fly in all directions and execute the most complicated manoeuvres.

Dr Heinrich Frontzek, head of corporate communication and future concepts, explains that the BionicOpter's ability to move each of its wings independently enables it to slow down and turn abruptly, to accelerate swiftly and to fly backwards.

Yet, despite its complexity, the highly integrated system can be operated easily and intuitively via a smartphone, he says.

Frontzek asserts that this dexterity in flight and control is made possible by lightweight construction and tight integration of functions. Components such as sensorsand actuators, as well as open- and closed-loop control systems, have been installed in a very tight envelope and adapted to one another.

Flapping frequency, amplitude and angle of incidence are controlled by software and electronics. The pilot just needs to steer the dragonfly.

The principles of ultra-lightweight construction are applied throughout the flying object. With a wingspan of 63 cm and a body length of 44 cm, the model dragonfly weighs just 175 grams.

The wings consist of a carbon-fibre frame and a thin foil covering, while the intelligent kinematics correct any vibrations during flight and ensure flight stability.

In order to stabilise the flying object, data on the position and the twisting of the wings is continuously recorded and evaluated in real time during the flight of the dragonfly.

"This [technology] is essential for our long-term reputation as a competent partner with a high level of problem-solving skills," states Frontzek.

"What we need to do is simplify the challenges involved in production sequences and guarantee intuitive control of machines and plants."

Brian Tinham

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Festo Ltd

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