RAIL CORRUGATION EFFECT ON VIBROACOUSTIC PROPERTIES UNDER STOCK OPERATION
Abstract
According to the papers of the German and French specialists, the rail corrugation stimulates increasing the rail sound radiation intensity. Besides, the consideration of the rail corrugation actually explains the high-frequency noise spectrum. The rail corrugation is characterized by two key parameters — the corrugation amplitude and spacing. The corrugation occurrence leads to the high-frequency impact on the rail under the rolling stock operation, since the influence frequency represents motion speed/corrugation spacing ratio. Lagrange equations are used to define the force impact on the rail under the rolling stock operation. Rail vibration velocities are obtained from the differential equations of the bending oscillations for various methods of the rail laying: on the slab track, on timber and concrete sleepers. It is shown that the motion speed effects to a greater extent on the noise level increase involving the corrugation.
References
1. Klimpel, T., Knose, K. Shum kacheniya i metody borby s nim. [Tread noise, and control tech-nology over it.] Zheleznyye dorogi mira, 2003, no. 12, pp. 47–52 (in Russian).
2. Podust, S. F., Kuklin, D. A. Modelirovaniye vibroakusticheskoy dinamiki relsa na shpalakh. [Vibroacoustic dynamics simulation of rail on sleepers.] Vestnik of DSTU, 2013, no. 1, pp. 106–112 (in Russian).
3. Podust, S. F. Analiz zakonomernostey shumoobrazovaniya elektropoyezdov. [Electric trains noise emission mechanism analysis.] Vestnik Rost. gos. un-ta putey soobshcheniya, 2012, no. 4, pp. 42–45 (in Russian).
Review
For citations:
Podust S.F. RAIL CORRUGATION EFFECT ON VIBROACOUSTIC PROPERTIES UNDER STOCK OPERATION. Vestnik of Don State Technical University. 2013;13(5-6):137-143. (In Russ.) https://doi.org/10.12737/1292