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The comparative analysis is based on the results of the static strength analysis of an Y25Ls-K bogie frame and the tests that have been carried out. Strength calculations have been made using the Finite Elements Method at the Department of Railway Engineering at the Technical University -Sofia and the tests of the bogie frame have been conducted in VUZ Testing laboratory in the Czech Republic. It was found out that the stress results are very similar, especially in the areas with maximaldoi:10.1051/matecconf/201713303004 fatcat:2dmd2k5cafhm7nvcleqgw26ilq