A.V. Volkov - Ph. D. (Eng.), Associate Professor, Kaluga branch of the Bauman MSTU. E-mail: volkovkfmgtu@yandex.ru I.K. Ustinov - Ph. D. (Eng.), Head of Department, Kaluga branch of the Bauman MSTU. E-mail: m4kf-kafedra@rambler.ru A.P. Korzhavyy - Dr. Sc. (Eng.), Professor, Kaluga branch of the Bauman MSTU. E-mail: fn2kf@list.ru S.S. Strelchenko - Dr. Sc. (Eng.), Professor, Kaluga branch of the Bauman MSTU. E-mail: stas40@kaluga.ru