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SIMULATIONS OF GROUND VIBRATION FROM A MOVING HARMONIC LOAD ON A RAILWAY TRACK

✍ Scribed by C.J.C. JONES; X. SHENG; M. PETYT

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 417 KB
Volume: 231
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.1999.2559

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✦ Synopsis

A sequence of results is presented from a model of an oscillating load moving on a track on a layered ground. The results allow a visualization of the e!ect of the relative speeds of the load and the propagation speeds in the ground structure. This is useful in developing the understanding of the interaction of train speed, track structure and ground properties for high-speed trains. The simulation shows the excitation of high amplitudes of vibration in the track, the &&bow wave'' angle of propagation of vibration in the ground and the transfer of vibrational energy to a higher order mode as the speed of the load exceeds that of the "rst mode of propagation in the layered ground. 2000 Academic Press 0022-460X/00/130739#13 $35.00/0 ( # ) * *y # v" *v *t ( # ) * *z # w" *w *t

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