A substructure approach for the dynamic analysis of train-track-bridge system

The dynamic interaction between a running train, the track structure and the supporting bridge is investigated resorting to substructure technique. The train is idealised as a sequence of identical vehicles moving at constant speed. Both the rails and the bridge are modelled as Bernoulli-Euler beams, while the ballast is characterised as a viscoelastic foundation. A variant of the component-mode synthesis method is proposed to couple the continuous (rails and bridge) and discrete (train) substructures. Numerical investigations have demonstrated the accuracy and efficiency of the procedure, which allows to compute simultaneously the dynamic responses of the train, rails and bridge.

[1]  L Fryba,et al.  VIBRATION OF SOLIDS AND STRUCTURES UNDER MOVING LOADS (3RD EDITION) , 1999 .

[2]  Francis T.K. Au,et al.  Vibration of railway bridges under a moving train by using bridge-track-vehicle element , 2001 .

[3]  Lawrence A. Bergman,et al.  Revisiting the moving force problem , 2003 .

[4]  G. Muscolino,et al.  Component-mode synthesis method for coupled continuous and FE discretized substructures , 2003 .

[5]  Walter C. Hurty,et al.  Vibrations of Structural Systems by Component Mode Synthesis , 1960 .

[6]  S. Sadiku,et al.  On the dynamics of elastic systems with moving concentrated masses , 1987 .

[7]  G. A. Fonder,et al.  AN ITERATIVE SOLUTION METHOD FOR DYNAMIC RESPONSE OF BRIDGE–VEHICLES SYSTEMS , 1996 .

[8]  Giuseppe Muscolino,et al.  Component-Mode Synthesis Method Variants in the Dynamics of Coupled Structures , 2000 .

[9]  Yeong-Bin Yang,et al.  Steady-state response and riding comfort of trains moving over a series of simply supported bridges , 2003 .

[10]  Andrzej S. Nowak,et al.  SIMULATION OF DYNAMIC LOAD FOR BRIDGES , 1991 .

[11]  Yeong-Bin Yang,et al.  Impact response of high speed rail bridges and riding comfort of rail cars , 1999 .

[12]  R. Clough,et al.  Dynamics Of Structures , 1975 .

[13]  Yeong-Bin Yang,et al.  Vehicle-Bridge Interaction Element for Dynamic Analysis , 1997 .

[14]  Massood Mofid,et al.  Closure of "Numerical Solution for Response of Beams With Moving Mass" , 1991 .

[15]  Ladislav Frýba,et al.  Dynamics of Railway Bridges , 1996 .

[16]  Den Hartog.  Advanced Strength of Materials , 1952 .

[17]  Yeong-Bin Yang,et al.  IMPACT FORMULAS FOR VEHICLES MOVING OVER SIMPLE AND CONTINUOUS BEAMS. DISCUSSION AND CLOSURE , 1995 .

[18]  Yeong-Bin Yang,et al.  VEHICLE-BRIDGE INTERACTION ANALYSIS BY DYNAMIC CONDENSATION METHOD. DISCUSSION AND CLOSURE , 1995 .

[19]  Yeong-Bin Yang,et al.  Vibration of simple beams due to trains moving at high speeds , 1997 .

[20]  G. Muscolino,et al.  Dynamic analysis of structural systems using component mode synthesis , 2002 .