Acoustic optimisation of the rail track by targeted variation of continuous superstructure parameters along the track

Open Access

Table 1

Superstructure parameters for beam and non-variable superstructure properties.

Beam
Beam bending stiffness	B	6.38 MN/m²
Beam mass per unit length	$m_{r}^{'}$ ${m}_r^{\prime}$	60.21 kg/m
Viscous damping coefficient per unit length	d _r	1000 Ns/m²
Superstructure
Pad damping coefficient	d _p	33000 Ns/m
Pad stiffness coefficient	s _p	450 MN/m
Ballast damping coefficient	d _b	75000 Ns/m

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.