Institute of Computational Mathematics and Mathematical Geophysics

International Conference on Mathematical Methods in Geophysics «MMG-2003»

Akademgorodok, Novosibirsk, Russia, October 8-12, 2003

Abstracts

Mathematical problems in geotechnologies

Generation of surfase seismic waves on the driven train

Bubnov E.Y., Gushchin V.V.

Radio Physical Research Institute (N. Novgorod)

In approximation homogeneous elastic medium and on the basis of a method of electromechanical analogies carries out theoretical account of a seismic field created by movement of a train on casual roughnesses of a welded rail way. The influence of the resonant phenomena in system caused as by fluctuations of the carriage on an elastic suspension and fluctuations of a part of the carriage and a rail way on elasticity of a ballast is taken into account. The teoretical estimations of a spectrum of a seismic signal, created by a freight train, are compared to the data of experiment.

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