E.A. Spirina1, S.V. Kozlov2, A.A. Bukharina3

1–3 Kazan National Research Technical University named after A.N. Tupolev–KAI (Kazan, Russia)

1 EASpirina@kai.ru; 2 SVkozlov@kai.ru; 3 AABukharina@kai.ru (Kazan, Russia)