V. V. Savinkin
M. Kozybaiev North Kazakhstan University
Kazakhstan

Vitaliy V. Savinkin, Dr. of Sci., Associate Professor, Associate Professor of the Transport and Mechanical Engineering Department.

150000, North Kazakhstan region, Petropavlovsk, Pushkin 86

I. V. Shagaev
M. Kozybaiev North Kazakhstan University
Kazakhstan

Ivan V. Shagaev, Graduate Student of the Transport and Mechanical Engineering Department.

150000, North Kazakhstan region, Petropavlovsk, Pushkin str., 86

S. V. Savinkin
Omsk State University of Railways and Communications
Russian Federation

Sergey V. Savinkin, Post-graduate Student of the Technology of Transport Engineering and Repair of Rolling Stock Department.

644046, Russia, Omsk, Marks ave., 35

V. N. Kuznetsova
Siberian State Automobile and Highway University
Russian Federation

Victoria N. Kuznetsova, Dr. of Sci., Professor of the Operation and Service of Transport and Technological Machines and Complexes in Construction Department.

644080, Omsk, Mira ave., 5

A. V. Sandu
Gheorghe Asachi Technical University in Iasi
Romania

Andrei V. Sandu, PhD, Professor, the Materials science and engineering Department.

Boulevard D. Mangeron, No. 51, 700050 Iasi, Romania