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Table 3 Collision responses of the energy-absorbing devices under different empty stroke D

From: Research on the Influence of Multiple Parameters on the Responses of a B-type Subway Train

Empty stroke D(mm) Compression displacement (mm) Energy absorption (kJ)
Collision Interface S1-M1 Semi-automatic coupler Collision Interface S1-M1 Anti-climbers Collision Interface M1-M2 Collision Interface M2-M3 Collision Interface S1-M1 Collision Interface M1-M2 Collision Interface M2-M3
20 353 223.7 320.77 342.6 599.78 281.48 255.46
23.75 353 233.95 312.86 335.86 612.57 273.68 250.07
27.5 353 239.15 315.56 324.94 619.05 275.95 241.33
31.25 353 243.2 320.96 312.42 624.13 281.45 231.31
35 353 250 320.17 302.36 632.62 280.84 223.27
38.75 353 252.65 328.56 288.64 635.98 288.94 212.3
42.5 353 261.05 324.62 279.86 646.46 284.9 205.26
46.25 353 262.6 335.12 265.16 648.4 295.66 193.5
50 353 269.75 333.71 255.56 657.36 294.08 185.84
Relative change (%) 20.59 4.03 − 25.41 9.60 4.48 − 27.25