International Meeting on SADE Project

TsAGI hosted a regular meeting of SADE project partners of the 7th European Framework Program on November 29–30, 2011.

The project involves 13 leading scientific and aviation design centers from Europe, including the Central Aerohydrodynamic Institute, the German Aerospace Center (DLR, Germany), Delft Technical University (The Netherlands), Aerospace Research and Test Establishment (VZLU, Czech Republic), the Swedish Defense Research Agency (FOI, Sweden), the Italian Aerospace Research Center (CIRA, Italy), Airbus Operations GmbH (Airbus, Germany), European Aerospace and Defense Company (EADS, Germany), Aircraft Research Association (ARA, Great Britain), and others.

The starting point of the SADE project was research by the Central Aerohydrodynamic Institute in the field of adaptive wings. TsAGI heads a major section of the project, responsible for developing and testing a model of the wing with a smart mechanism in the T-101 wind tunnel. The Institute is also responsible for calculations and experimental studies into one of the options for the «smart» mechanism — using appropriately-deforming (or selectively-deforming) structures, which have become known abroad as SDS-structures (selectively-deformable structures). These structures are based on a unit cell with minimal rigidity in tension-compression in one direction at a given stiffness in bending, torsion, shear and tension-compression in all other directions. This is the invention of the chief scientific research work at the TsAGI aero-elasticity department, for which Dr. Gennady Amiryants was awarded a gold medal at the InnovExpo Innovation Salon in Brussels.

Along with the concept of SDS, scientists and experts are considering several other variants of adaptive controls proposed by the European partners. The task facing the specialists is to select the most promising option in terms of aerodynamic and weight ratio, based on integrated computational and experimental studies.

Next year, the institute will build a demonstrator caisson, constructed at TsAGI, a «smart» front edge (developed by German partners) and the flap (the design of Italian partners), and to prepare for and carry out testing of the demonstrator in the T-101 wind tunnel.

At the last meeting, the project’s participants discussed the current state of research on each section. A schedule was outlined for completing calculations and experimental work for safety tests of the demonstrator in the T-101 wind tunnel in terms of strength and flutter, and schedules for the preparation and conducting of trials involving specialists from the Institute’s research departments and TsAGI’s partners.

As part of the meeting, the foreign representatives visited the Institute’s experimental base; the space structure research laboratory, the dynamic-scale modeling lab and the T-101 and T-104 wind tunnels.

Project Director Hans Peter Monner noted that a large number of partners in the program gathered to participate in this meeting at TsAGI — experts and specialists from all over Europe: «This is my first time at TsAGI and I am very impressed in the Institute’s experimental facilities," Monner explained. «The planned tests of the demonstrator in the TsAGI T-101 wind tunnel are a key moment in our project. The results of research in the SADE project will be of major significance for future projects dealing with adaptive elements of mechanization.»

The scientific director of TsAGI’s part in the project Gennady Amiryants underlined that the foreign partners highly appreciated the significant work carried out on the SADE project, which is being performed on time, and to a high standard in fruitful collaboration with European partners, by TsAGI specialist: scientists, designers and manufacturers from the scientific and technical center and the test production department of the Institute’s scientific-industrial complex, and the engine aerodynamics, measurement technology and metrology, aero-elasticity, loads and strength norms departments.

The SADE project of the 7th European framework program was launched on May 1, 2008. It will involve four years of joint work. The main aims of the Russian and foreign participants in the program are to improve the aerodynamic and fuel efficiency of aircraft, as well as reducing noise and emissions in all flight conditions, primarily — landing and take-off, and cruising. Thus, the groundwork is carried out for improving the performance and competitiveness of future aircraft.