Numerical simulation of train-bridge interactive dynamics
In this paper, the space model for train carriages is developed and introduced in dynamic analysis of train-bridge interaction. The rail irregularities described by the power spectral density functions are generated by inverse Fourier transformation. The equations of motion of train-bridge systems are derived and reduced to simulate the dynamic responses of bridges under moving trains. The Newmark's beta integration method is adopted to serve the non-linear coupling equations. Numerical examples show that the method of this paper has high accuracy in simulating train-bridge interactive dynamics, (C) 2001 Elsevier Science Ltd. All rights reserved.
numerical simulation interactive dynamics train-bridge system