Dynamic Response Analysis of an Asymmetric Coupled Vehicle-Track System Generated by Voided Elastic Two-Block Sleeper

Table 1

Comparison of vibration responses of vehicle system.

Index	Voided sleeper	Weld joint irregularity	Vertical profile irregularity	American track spectrum of fifth grade
Peak of displacement of car body (mm)	1.9150	1.8127	3.3610	1.7340
Peak of acceleration of car body (g)	0.00115	0.00125	0.00945	0.00906
Peak of displacement of frame (mm)	2.059	1.850	4.722	1.653
Peak of acceleration of frame (g)	0.00189	0.00246	0.01747	0.01361