Theoretical Simulation and Experimental Investigation of a Rail Damper to Minimize Short-Pitch Rail Corrugation

Table 1

Main parameters of the track structure model.

Component	Item	Unit	Value
Rail	Per-unit-length mass	kg⋅m^−1	60
	Young’s modulus	MPa	2.06 × 10^5
	Poisson’s ratio	—	0.3
Fastening system	Vertical stiffness	kN⋅mm^−1	12.07
	Vertical damp	kN⋅s⋅mm^−1	1361.12
	Lateral stiffness	kN⋅mm^−1	7.58
	Lateral damp	kN⋅s⋅mm^−1	974.27
	Fastening spacing	m	0.625
	Support length	m	0.15
Track bed slab	Young’s modulus	MPa	3.35 × 10^4
	Poisson’s ratio	—	0.2
	Thickness	m	0.26