VERTICAL VIBRATION ATTENUATION IN RAILWAY TRACK: A WAVE APPROACH

✍ Scribed by R. HILDEBRAND

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 441 KB
• Volume: 247
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.2001.3754

✦ Synopsis

A wave approach is used to determine the attenuation of vertical bending vibrations along an in"nite railway track. An innovation is the inclusion of the e!ects of the second rail, and particularly the &&mode'' de"ned by its phase delay with respect to the vibrations of the "rst rail. This &&mode'' could refer to the two rails vibrating symmetrically (in-phase) or antisymmetrically (out-of-phase), for example. The results show that this &&mode'' shape can strongly in#uence the attenuation at some frequencies. A small parametric study provides results on the e!ect of some track design parameters on the attenuation behaviour.

2001 Academic Press