1 Introduction
2 Differential coupling wheelset
3 Dynamic performance of bogies with DCWs
3.1 Dynamic model of bogies with DCWs
Bogie mass | 3,200 kg |
Wheelset mass | 1,200 kg |
Lateral and longitudinal stiffness of primary suspension | 4 MN/m |
Vertical stiffness of primary suspension | 0.8 MN/m |
Radius of wheel | 0.325 m |
Rail gage | 1.435 m |
Coefficient of friction | 0.4 |
Coupling stiffness | 60 kNm/rad |
Coupling damping | 60 kNms/rad |
Max adhesion torque | 500 Nm |
Vehicle model | Type of motion | |||||
---|---|---|---|---|---|---|
Longitudinal | Lateral | Vertical | Roll | Yaw | Pitch | |
Bogie frame | V | V | V | V | V | V |
Differential coupling wheelset | V | V | V | V | V | V |
Axle box | – | – | – | – | – | V |
Motor | – | – | – | – | – | V |
3.2 Self-centering capability of bogies with DCWs on the tangent line
3.3 Stability analysis of the bogie with DCW
3.4 Self-steering ability of the trailer bogie with DCW
Length of tangent track (m) | 150 |
Length of transition track (m) | 20 |
Length of constant curve (m) | 50 |
Radius of curve (m) | 30 |
Cant (m) | 0 |
Running speed (km/h) | 20 |
3.5 Self-steering ability of motor bogie with the DCW
Length of tangent track (m) | 100 |
Length of transition track (m) | 20 |
Length of constant curve (m) | 50 |
Radius of curve (m) | 50 |
Cant (m) | 0 |