Schübeler Technologies supports ETH Zurich’s visionary project

A concept of control inspired by nature and combined with morphing technology has now been
carried out by engineering students from ETH Zurich in collaboration with aviation experts. The eight members
The student team is testing new control concepts and construction methods in aviation. The goal is to
reduce power consumption and noise generation through reduced drag and improve
maneuverability of the aircraft.

Schübeler Technologies actively supported this innovative project and supplied both motors and
technical expertise in an advisory capacity. “By participating in this project, we wish to contribute
to the future development of aviation ”, explains Daniel Schübeler, Managing Director of Schübeler
Technologies. “The visionary approach of Bionic Flying Wing as well as the enthusiasm and creativity of
the team thrilled us.

The project aims to prove the feasibility of morphing concepts inspired by bionics in the air. To this end, a
Deformable morphing wing structure with a three-meter wingspan was developed to be used in place of
discreet flaps. It achieves a top speed of up to 100 km / h. The wing structures are
specifically deformed to replace conventional control surfaces. In this way, new design potential for the
the plane of tomorrow is open The main challenge of this approach is that the wing must be rigid –
that is, it must not beat, but always be able to be deflected. To achieve both, a healthy compromise had to be
find. Due to its high strength and low weight, the team therefore opted for CFRP (carbon-fiber-
reinforced polymer) as a construction material.

The requirements for the drive system used were also high. In search of an efficient turbine that
provides the greatest possible thrust in combination with low power consumption, the team quickly
fell on the market leader EDF Schübeler. On the recommendation of Schübeler, the team decided to
Model DS-51-AXI HDS with an 1125kv motor and 12 lipo cells. This variator offers a thrust of 5.5 kg (approx.
55N) with a consumption of 85 amps, which was perfectly suited for an airplane of this speed,
height and weight. Two fans are used and provide a total thrust of approximately 11kg (110N).

The HDS ventilator is a quality product built to last. The lightweight and very shortened rotor
The assembly offers efficient operation thanks to great smoothness. The blades are in high
temperature, fiber reinforced polymer, operate very efficiently, broadband and quietly. The force is
provided by the carbon fairing.

In a successful first test flight in June this year, the team proved that the inspired bionic morphing
The concepts can be used to safely control a flying wing aircraft. It was the product of countless hours of

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