Table 2.

Mechanical properties for track components.

Component	Property	Symbol	Value
Rail-pad	Stiffness	$k_p$	62 MN/m
	Damping	$c_p$	32 kNs/m
ine Ballast	Stiffness	$k_b$	230 MN/m
	Damping	$c_b$	200 kNs/m
	Mass	$m_b$	1400 kg
Rail	Young’s modulus	$k_a$	200 GPa
	Poisson’s ratio	${\nu }_r$	0.3
	Area	$A_r$	$8.13\times {10}^{-3}$ m2
	Moment of Inertia	$I_y$	$3.09\times {10}^{-5}$ m4
	Density	${\rho }_r$	7800 kg/m3