A nonlinear finite element method was used to investigate the derailments of trains moving on multispan simply supported bridges due to damage to suspension systems. At the simulation beginning, the initial vertical trainloads to simulate the train gravity weight are gradually added into the mass center of each rigid body in the train model with large system damping, so the initial fake vibration is well reduced. A suspension is then set to damage within the damage interval time, while the spring and/or damper changes from no damage to a given percentage of damage. Finite element parametric studies indicate the following: (1) the derailment coefficients of the wheel axis nearby the damage location are significantly increased. (2) Damage to the spring is more critical than that to the damper for the train derailment effect. (3) The derailment coefficient induced by damage to the primary suspension is more serious than that to the secondary suspension. (4) If rail irregularities are neglected, the train speed has little influence on the derailment coefficients generated from damage to suspensions. (5) The train derailment coefficients rise with a decrease in the damage interval time, so sudden damages to suspension systems should be avoided.

References

References
1.
Lundqvist
,
A.
, and
Dahlberg
,
T.
,
2005
, “
Load Impact on Railway Track Due to Unsupported Sleepers
,”
Proc. Inst. Mech. Eng., Part F
,
219
(
2
), pp.
67
77
.
2.
Xiao
,
X. B.
,
Wen
,
Z. F.
,
Jin
,
X. S.
, and
Sheg
,
X. Z.
,
2007
, “
Effects of Track Support Failures on Dynamic Response of High Speed Tracks
,”
Int. J. Nonlinear Sci. Numer. Simul.
,
8
(
4
), pp.
615
630
.
3.
Zhang
,
S. G.
,
Mao
,
X. B.
,
Wen
,
Z. F.
, and
Jin
,
X. S.
,
2008
, “
Effect of Unsupported Sleepers on Wheel/Rail Normal Load
,”
Soil Dyn. Earthquake Eng.
,
28
(
8
), pp.
662
673
.
4.
Dinh
, V
. N.
,
Kima
,
K. D.
, and
Warnitchai
,
P.
,
2009
, “
Dynamic Analysis of Three-Dimensional Bridge High-Speed Train Interactions Using a Wheel–Rail Contact Model
,”
Eng. Struct.
,
31
(
12
), pp.
3090
3106
.
5.
Gupta
,
S.
,
Stanus
,
Y.
,
Lombaert
,
G.
, and
Degrande
,
G.
,
2009
, “
Influence of Tunnel and Soil Parameters on Vibrations From Underground Railways
,”
J. Sound Vib.
,
327
(
1–2
), pp.
70
91
.
6.
Ju
,
S. H.
, and
Liao
,
J. R.
,
2010
, “
Error Study of Rail/Wheel Point Contact Method for Moving Trains With Rail Roughness
,”
Comput. Struct.
,
88
(
13–14
), pp.
813
824
.
7.
Wang
,
W. L.
,
Huang
,
Y.
,
Yang
,
X. J.
, and
Xu
,
G. X.
,
2011
, “
Non-Linear Parametric Modelling of a High-Speed Rail Hydraulic Yaw Damper With Series Clearance and Stiffness
,”
Nonlinear Dyn.
,
65
(
1–2
), pp.
13
34
.
8.
Ang
,
K. K.
, and
Dai
,
J.
,
2013
, “
Response Analysis of High-Speed Rail System Accounting for Abrupt Change of Foundation Stiffness
,”
J. Sound Vib.
,
332
(
12
), pp.
2954
2970
.
9.
Nishimura
,
K.
,
Terumichi
,
Y.
, and
Morimura
,
T.
,
2009
, “
Development of Vehicle Dynamics Simulation for Safety Analyses of Rail Vehicles on Excited Tracks
,”
ASME J. Comput. Nonlinear Dyn.
,
48
(
3
), p.
011001
.
10.
Zhang
,
Z. C.
,
Zhang
,
Y. H.
,
Lin
,
J. H.
,
Zhao
,
Y.
,
Howson
,
W. P.
, and
Williams
,
F. W.
,
2011
, “
Random Vibration of a Train Traversing a Bridge Subjected to Traveling Seismic Waves
,”
Eng. Struct.
,
33
(
12
), pp.
3546
3558
.
11.
Tanabe
,
M.
,
Matsumoto
,
N.
,
Wakui
,
H.
,
Sogabe
,
M.
,
Okuda
,
H.
, and
Tanabe
,
Y.
,
2008
, “
A Simple and Efficient Numerical Method for Dynamic Interaction Analysis of a High-Speed Train and Railway Structure During an Earthquake
,”
ASME J. Comput. Nonlinear Dyn.
,
3
(
4
), p.
041002
.
12.
Du
,
X. T.
,
Xu
,
Y. L.
, and
Xia
,
H.
,
2012
, “
Dynamic Interaction of Bridge-Train System Under Non-Uniform Seismic Ground Motion
,”
Earthquake Eng. Struct. Dyn.
,
41
(
1
), pp.
139
157
.
13.
Ju
,
S. H.
,
2012
, “
Nonlinear Analysis of High-Speed Trains Moving on Bridges During Earthquakes
,”
J. Nonlinear Dyn.
,
69
(
1–2
), pp.
173
183
.
14.
Ling
,
L.
,
Xiao
,
X. B.
, and
Jin
,
X. S.
,
2012
, “
Study on Derailment Mechanism and Safety Operation Area of High-Speed Trains Under Earthquake
,”
ASME J. Comput. Nonlinear Dyn.
,
7
(
4
), p.
041001
.
15.
Koo
,
J. S.
, and
Cho
,
H. J.
,
2012
, “
A Method to Predict the Derailment of Rolling Stock Due to Collision Using a Theoretical Wheelset Derailment Model
,”
Multibody Syst. Dyn.
,
27
(
4
), pp.
403
422
.
16.
Xia
,
C. Y.
,
Lei
,
J. Q.
,
Zhang
,
N.
,
Xia
,
H.
, and
De Roeck
,
G.
,
2012
, “
Dynamic Analysis of a Coupled High-Speed Train and Bridge System Subjected to Collision Load
,”
J. Sound Vib.
,
331
(
10
), pp.
2334
2347
.
17.
Xia
,
C. Y.
,
Xia
,
H.
,
Zhang
,
N.
, and
Guo
,
W. W.
,
2013
, “
Effect of Truck Collision on Dynamic Response of Train-Bridge Systems and Running Safety of High-Speed Trains
,”
Int. J. Struct. Stab. Dyn.
,
13
(
3
), p.
1250064
.
18.
Liang
,
B.
,
Zhu
,
D.
, and
Cai
,
Y.
,
2001
, “
Dynamic Analysis of the Vehicle-Subgrade Model of a Vertical Coupled System
,”
J. Sound Vib.
,
245
(
1
), pp.
79
92
.
19.
Jun
,
X.
, and
Qingyuan
,
Z.
,
2005
, “
A Study on Mechanical Mechanism of Train Derailment and Preventive Measures for Derailment
,”
Veh. Syst. Dyn.
,
43
(
2
), pp.
121
147
.
20.
Wong
,
R. C. K.
,
Thomson
,
P. R.
, and
Choi
,
E. S. C.
,
2006
, “
In Situ Pore Pressure Responses of Native Peat and Soil Under Train Load: A Case Study
,”
J. Geotech. Geoenviron. Eng.
,
132
(
10
), pp.
1360
1369
.
21.
Yau
,
J. D.
,
2009
, “
Response of a Train Moving on Multi-Span Railway Bridges Undergoing Ground Settlement
,”
Eng. Struct.
,
31
(
9
), pp.
2115
2122
.
22.
Yau
,
J. D.
,
2009
, “
Response of a Maglev Vehicle Moving on a Series of Guideways With Differential Settlement
,”
J. Sound Vib.
,
324
(
3–5
), pp.
816
831
.
23.
Ju
,
S. H.
,
2013
, “
3D Analysis of High-Speed Trains Moving on Bridges With Foundation Settlements
,”
Arch. Appl. Mech.
,
83
(
2
), pp.
281
291
.
24.
Liu
,
X.
,
Saat
,
M. R.
, and
Barkan
,
C. P. L.
,
2012
, “
Analysis of Causes of Major Train Derailment and Their Effect on Accident Rates
,”
Transp. Res. Rec.
,
2289
, pp.
154
163
.
25.
Ju
,
S. H.
,
2012
, “
A Simple Finite Element for Nonlinear Wheel/Rail Contact and Separation Simulations
,”
J. Vib. Control
,
20
, pp.
330
338
.
26.
Ju
,
S. H.
,
2002
, “
Finite Element Analyses of Wave Propagations Due to High-Speed Train Across Bridges
,”
Int. J. Numer. Method Eng.
,
54
(
9
), pp.
1391
1408
.
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