The article presents methodology and results of a study on durability of project 2750 switches on reinforced concrete bars laid in 2004 2007 on section O-N with mixed traffic of freight and passenger trains. The weighted average and gamma-percentile life of switches is determined in general and for its particular elements: frogs and repair kits. The project 2750 switch is one of the most massive projects on the West Siberian Railway. Data on failures of switch elements was taken from the EC ASUI for a 10-year period. The research result analysis showed that the weighted average resource of project 2750 switch exceeds 1 billion rubles GRT operating time. This is 3 times more than standard operating time established by technical requirements and thus indicates weak knowledge of project 2750 switch lifecycle. Service life of switch metal parts is 6.5 years or 760 million GRT operating time for the first track, 8 years or 640 million GRT operating time for the second track, which corresponds to 60% service life of the project 2750 switches in general. The average service life of frogs on both tracks was 115 million GRT operating time, which corresponds to 1 year of service on the first track and 1.5 years on the second track. Gamma-percentile life of frogs is 60 million GRT operating time and corresponds to the warranty period established by the switch plant. Based on the obtained operational data, a model of lifecycle cost for the project 2750 switch was constructed.
Lifecycle Parameters of the Project 2750 Rail Switch on Reinforced Concrete Rods
Lect. Notes in Networks, Syst.
International Scientific Siberian Transport Forum ; 2021 May 11, 2021 - May 14, 2021
International Scientific Siberian Transport Forum TransSiberia - 2021 ; Chapter : 18 ; 159-169
2022-03-18
11 pages
Article/Chapter (Book)
Electronic Resource
English
DataCite | 1898
Trials of a 2750 B.H.P. Exhaust turbo-charged marine oil engine
Engineering Index Backfile | 1930
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