Open AccessMethods and results of evaluating the dual-power electric train crew elements service life
Author(s) -
V. L. Horоbets,
Олег Игоревич Саблин,
Evgenii Yu. Fedorov,
E. Horobets,
O. P. Bolotov,
O. Jangulova
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/985/1/012028
Subject(s) - vibration , damper , engineering , service life , structural engineering , automotive engineering , chassis , electric power , durability , crew , vibration isolation , power (physics) , computer science , mechanical engineering , acoustics , aeronautics , physics , quantum mechanics , database
The article assesses the long-term strength of the vibration damper assembly of a double power transmission of electric trains manufactured by «Hyundai-Rotem Company». The technique is described and the analysis of the service life of the elements of the chassis of the electric train is made. The presence and nature of micro cracks in the loaded elements of the vibration damper assembly was evaluated after a full cycle of vibration bench tests. The influence of vertical vibrations of the electric train body on the level of dynamic load and the service life of the bearing elements of the vibration damper assembly is considered. The service life of the vibration damper at the end of the service life has been estimated by comparing working hours and “statistical playback”. The calculation of the resource by the method of “statistical reproduction” confirms the possibility of operating the vibration damping module (second modernization) for 50 years from the date of construction. The influence of the vibration damper position on its dynamic loading is checked. The main stages and sequence of tests for estimation the resource of the longitudinal vibration damper module of a double-fed electric train are also considered, including methodological, calculated and experimental confirmation of the reliability and durability of the unit, which was studied as part of a comprehensive work.