V.O. Fedorov - Ph. D. (Eng.), Associate Professor, Kaluga branch of the Bauman MSTU. E-mail: wquolz@mail.ru A.V. Chelenko - Post-graduate Student, Kaluga branch of the Bauman MSTU. E-mail: apererva@yandex.ru N.V. Yarantsev - Ph. D. (Eng.), Head of Basic Departments in JSC «Voskhod»-KRLZ, Kaluga branch of the Bauman MSTU. E-mail: yarancev_nv@mail.ru