Table 2: Bogie and bridge parameters for 1 : 5 scaled roller rig.

ParametersValues

: stiffness of bridge (MN/m)319.2
: mass of the wagon (kg)166, 199
: mass of the bogie frame (kg)24
: distance between two centers of axles (m)0.6
: moment of inertia of the bogie frame (tm2)0.00128
, : masses of front and rear wheel (kg)14.4
, : stiffness of primary suspension system (MN/m)0.8
, : stiffness of Hertz contact region (MN/m)203.109
, : damping of Hertz contact region (kNs/m)16
: stiffness of secondary suspension system (MN/m)0.4
, : damping of primary suspension system (kNs/m)0.16
: damping of secondary suspension system (kNs/m)0.64