(a) Normal damper
(b) Fault damper
Fig. 9 Test damper installed on the bogie of the test train
(a) Force - Velocity
(b) Force - Displacement
Fig. 3 Test result for normal damper using damper tester
(a) Force - Velocity
(b) Force - Displacement
Fig. 4 Test result for fault damper using damper tester
(a) Force
(b) Velocity
Fig. 15 Comparison of average distribution of damper force and velocity for normal and fault dampers
(a) Normal
(b) Fault
Fig. 16 Comparison of velocity-force distribution for normal and fault dampers