A.V. Medvedev1, A.S. Tusov2, S.Yu. Kruglikov3

1 PJSC Rostov Optical and Mechanical Plant (Rostov, Russia)
2,3 P.A. Solovyov Rybinsk State Aviation Technical University (Rybinsk, Russia)

1 ogk@romz.ru, 2 atusov@yandex.ru, 3 sukruglikov@mail.ru