TsAGI experts test air-brake device for aviation rescue systems
13 December 2017
Specialists of the Zhukovsky Central AeroHydrodynamic Institute (TsAGI, a member of the National Research Center “Zhukovsky Institute”) conducted tests of a full-scale model of a free-falling container with a deploying air-brake device. The experiments were conducted in TsAGI transonic wind tunnel. The customer was JSC “GosNIIMash”.
The air-brake device for aviation rescue systems will provide a shorter time in the vertical trajectory and will reduce the deviation of the landing place.
The supposed load pulse during the testing was about two tons. For this purpose the Institute engineers developed a special suspension rig and installed it in the wind tunnel.
The task of the test was to determine air-brake flap deployment rate and also to understand their strength and durability characteristics.
TsAGI specialists checked the stabilizer block at low speeds up to Mach 0.5. A high-speed video camera recorded the action of the air-brake device. Also measured was the stress of the most loaded parts of the brake flaps structure. Following the test results TsAGI experts made a recommendation for changing the flaps fixation and their aerodynamics.
“Such studies in the T-106 transonic wind tunnel are carried out infrequently,” said the Head of the laboratory of TsAGI’s Department of Aerodynamics of Aircraft and Space Vehicles Petr Savin. “Testing a real object in actual flight mode is very challenging.”