1. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Spectral Distribution of Derailment Coefficient in Non-Linear Model of Railway Vehicle–Track System With Random Track Irregularities
J. Comput. Nonlinear Dynam. 2013;8(3): doi: /
Figure Legend:
Power spectral densities of geometrical track irregularities: (a) lateral (solid line) and vertical (dashed line), and (b) local superelevation (solid line) and half track gauge (dashed line)

2. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Spectral Distribution of Derailment Coefficient in Non-Linear Model of Railway Vehicle–Track System With Random Track Irregularities
J. Comput. Nonlinear Dynam. 2013;8(3): doi: /
Figure Legend:
Force components at the wheel/rail contact point: lateral (Y) and vertical (Q), normal force (N), and transverse rolling-friction force (F)

3. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Spectral Distribution of Derailment Coefficient in Non-Linear Model of Railway Vehicle–Track System With Random Track Irregularities
J. Comput. Nonlinear Dynam. 2013;8(3): doi: /
Figure Legend:
Contact force ratio Y/Q (derailment coefficient) for the leading wheelset (left wheel) of the front bogie: v=200 km/h. The horizontal lines mark the percentile values (Y/Q)Δx| of the running average (Y/Q)Δx found for various window widths Δx[m]. The value of (Y/Q)Δx| for Δx=0 corresponds to the raw signal Y/Q.

4. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Spectral Distribution of Derailment Coefficient in Non-Linear Model of Railway Vehicle–Track System With Random Track Irregularities
J. Comput. Nonlinear Dynam. 2013;8(3): doi: /
Figure Legend:
(a) Contact force ratio Y/Q, and (b) the running average (Y/Q)2m: v=200 km/h

5. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Spectral Distribution of Derailment Coefficient in Non-Linear Model of Railway Vehicle–Track System With Random Track Irregularities
J. Comput. Nonlinear Dynam. 2013;8(3): doi: /
Figure Legend:
Power spectral density of Y/Q for the leading wheelset (left wheel) of the front bogie for various ride velocities: v = 80, 120, 160, and 200 km/h

6. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Spectral Distribution of Derailment Coefficient in Non-Linear Model of Railway Vehicle–Track System With Random Track Irregularities
J. Comput. Nonlinear Dynam. 2013;8(3): doi: /
Figure Legend:
Power spectral density of Y/Q for the trailing wheelset (left wheel) of the front bogie for various ride velocities: v = 80, 120, 160, and 200 km/h

7. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Spectral Distribution of Derailment Coefficient in Non-Linear Model of Railway Vehicle–Track System With Random Track Irregularities
J. Comput. Nonlinear Dynam. 2013;8(3): doi: /
Figure Legend:
Power spectral density of Y/Q for the (a) leading, and (b) trailing wheelsets (left wheel) of the rear bogie for v = 200 km/h

8. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Spectral Distribution of Derailment Coefficient in Non-Linear Model of Railway Vehicle–Track System With Random Track Irregularities
J. Comput. Nonlinear Dynam. 2013;8(3): doi: /
Figure Legend:
(a) Wheelset lateral displacement y1*=y1-yw, its yaw angle ψ1*=ψ1-ψw, (c) flange angle γ1L, (e) components Y1L,cos=F1L cosγ1L, Y1L,sin=N1L sinγ1L of the lateral force Y1L at the wheel/rail contact point (see Eq. (2)), and (g) the ratio Y1L/Q1L for the leading wheelset (left wheel) of the front bogie over a 100 m track section: v = 200 km/h. The corresponding power spectral densities are shown in panels (b), (d), (f), and (h).

9. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Spectral Distribution of Derailment Coefficient in Non-Linear Model of Railway Vehicle–Track System With Random Track Irregularities
J. Comput. Nonlinear Dynam. 2013;8(3): doi: /
Figure Legend:
(a) Wheelset lateral displacement y2*=y2-yw, its yaw angle ψ2*=ψ2-ψw, (c) flange angle γ2L, (e) components Y2L,cos=F2L cosγ2L, Y2L,sin=N2L sinγ2L of the lateral force Y2L at the wheel/rail contact point (see Eq. (2)), and (g) the ratio Y2L/Q2L for the trailing wheelset (left wheel) of the front bogie over a 100 m track section: v = 200 km/h. The corresponding power spectral densities are shown in panels (b), (d), (f), and (h).

10. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Spectral Distribution of Derailment Coefficient in Non-Linear Model of Railway Vehicle–Track System With Random Track Irregularities
J. Comput. Nonlinear Dynam. 2013;8(3): doi: /
Figure Legend:
Power spectral density of Y/Q for the (a),(c) leading, and (b),(d) trailing wheelsets (left wheel) of the front bogie for modified parameters of the primary suspension: (a),(b) lateral stiffness constant (on one side of wheelset) 1000 kN/m (nominal value 1962 kN/m), and (c),(d) zero vertical damping (damper failure)