Investigation of Concrete Base-Roadbed Surface Contact Variation-Induced Vibration Characteristics of Vehicle-Slab Track-Subgrade System considering Fluid-Solid Interaction

Table 2

Parameters of slab track simulated.

Parameters	Value
Mass of rail beam	60 kg/m
Flexural stiffness of rail beam	6756 kN·m^2
Elastic modulus of track slab	36000 MPa
Thickness of track slab	0.19 m
Rail pad stiffness	60 MN·s/m^2
Rail pad damping	47.7 kN/m^2
CA mortar stiffness	900 MN/m^2
CA mortar damping	83 kN·s/m^2
Elastic modulus of concrete base	34000 MPa
Density of concrete base	2500 kg/m^3
Poisson’s ratio of concrete base	0.2
Thickness of concrete base	0.3 m