Model Reduction Technique Tailored to the Dynamic Analysis of a Beam Structure under a Moving Load

Table 2

Wheel-rail contact model parameters.

Notation	Parameter	Value
	Car body mass	9665 kg
	Wheelset mass	1650 kg
	Primary suspension stiffness	N/m
	Primary suspension damping	N × s/m
	Wheel radius	0.43 m
	Rail mass per meter	60.8 kg/m
	Rail density	7747 kg/m^3
	Young’s modulus of rail	210 GPa
	Moment of inertia of rail	m^4
	Rail bed stiffness	N/m
	Rail bed damping	N × s/m
	Rail bed spacing	0.625 m
	Rail length	20 m
	Number of elements between rail beds
	Vehicle speed	250 km/h
DCM
	Integration time step	1 × 10^−6 s
	Frequency	20 × 2π Hz
IRS method
	Integration time step	1 × 10^−5 s
SEREP
	Integration time step	1 × 10^−5 s
	Number of retained modes