Methodology to Evaluate Fatigue Damage of High-Speed Train Welded Bogie Frames Based on On-Track Dynamic Stress Test Data

Chinese Journal of Mechanical Engineering

Table 1 Equivalent stress values of the frame under uniform operation (MPa)

Test points	Test data and service miles L₁ (km)
Test points	8.1.2013 262,644	8.3.2013 267,679	8.9.2013 277,979
D04	54.9	52.8	56.6
D09	72.6	70.6	73.0
D10	67.1	65.4	67.9
D11	67.4	65.4	68.3
D12	58.8	57.5	59.2
D15	51.0	48.2	51.7
D16	43.6	42.6	44.3
D18	54.8	54.0	55.9
D21	51.0	50.1	52.3
D22	48.0	46.8	48.8
D23	45.4	46.5	47.9
D24	85.8	81.2	87.2

Note: Due to the confidentiality requirements of the project, the equivalent stress amplitude data in the table is uniformly superimposed with an identical random number. Equivalent stress amplitude data presented below were processed in the same manner