Study of the operational properties of the bolster of a freight car bogie

Different optimal designs of bogie bolster for model 18-100 freight car are examined in the article. There is an analysis existing designs. Full-fledged fatigue tests by method specified GOST 32400-2013 carried out on stand designed dynamic strength tests. The values experimental studies were compared with calculated ones, maximum loads from 735 to 755 kN. best results observed at a load 745 kN, and beam lost its bearing capacity 6.182 million cycles, which 39% more than required index. minimum cycles before cracking loss railway established.