Van Phu Tran - Post-graduate Student, Volgograd State Technical University E-mail: vanphu.vstu.russia@gmail.com M.V. Shcherbakov - Dr.Sc. (Eng.), Volgograd State Technical University E-mail: maxim.shcherbakov@gmail.com Nguyen Tuan Anh - Post-graduate Student, Volgograd State Technical University D.A. Skorobogatchenko - Dr.Sc. (Eng.), Volgograd State Technical University