Research Article
Dynamic Investigation of the Hunting Motion of a Railway Bogie in a Curved Track via Bifurcation Analysis
Table 1
Parameters and their numerical values of the two-axle railway bogie [
1,
22,
23].
| Parameters | Numerical value |
| Vehicle body, bogie frame, and wheelset masses | , , | Nonlinear longitudinal damping coefficients (kNs/m) | , , , | External load | | Acceleration due to gravity | | Wheel conicity | | Flange clearance | | Friction coefficient | | Cant angle | | Roll and yaw moments of inertia of the bogie frame | , | Roll and yaw moments of inertia of the wheelset (kgm2) | , | Primary longitudinal, lateral, and vertical stiffness (kN/m) | , , | Primary longitudinal, lateral, and vertical damping coefficients (kNs/m) | , , | Vertical and lateral stiffness (N/m) | , | Wheel radius | | Half of the track gauge | | Lateral creep coefficient | | Lateral/spin creep coefficient | | Spin creep coefficient | | Longitudinal creep coefficient | | Half of the primary longitudinal and vertical spring arms | | Half of the primary longitudinal and vertical damper arms | | Half of the primary lateral spring and damper arms | | Distance between the wheelset and the bogie frame mass center | | Height of the vehicle body mass center above the wheelset mass center ) | | Height of the bogie mass center above the wheelset mass center | |
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