ДОСЛІДЖЕННЯ ТЕХНІЧНОГО СТАНУ НЕСУЧИХ МЕТАЛОКОНСТРУКЦІЙ ВАГОНІВ ТЯГОВОГО ЕЛЕКТРОРУХОМОГО СКЛАДУ ЗАЛІЗНИЦІ ГРУЗІЇ

Abstract

The article analyzes the operational fleet of electric traction rolling stock of the Georgian railway. It has been established that the majority of the operating vehicles used in suburban traffic consists of electric trains of the Riga Wagon-Building Plant that have served their specified service lifetime. The need to extend the service lifetime of existing electric railway vehicles as an alternative to purchasing new ones is substantiated. Scientific and experimental studies of the technical condition of traction electric rolling stock wagons and their supporting metal structures were carried out in order to determine the actual remaining service lifetime and make a reasoned decision about the feasibility of renovation and extending the service life of the examined wagons. An examination of the technical condition of all provided wagons was carried out, and the actual residual lifetime of each of them was determined based on the results of the study. It has been established that there are practically no mechanical damages to the elements of the metal structures of the car bodies. Significant local corrosion damage of the elements on the body bolster in the area where the toilets are located was revealed. At the same time, the general technical condition of the body bolster is completely satisfactory. Detected corrosion damage of the main bearing elements of metal structures is local in nature and does not exceed permissible values. The examined metal structures of the bodies of ЕР2 type electric trains have minor mechanical and corrosion damage. The possibility of modernizing electric train cars of the ЕР2 type with an extension of the service life for 5 years based on the results of determining their actual residual lifetime is substantiated.