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http://dx.doi.org/10.7782/JKSR.2015.18.3.212

Characteristics of Rolling Noise Sources of Tram Resilient Wheels and Track  

Jang, Seungho (Transportation Environmental Research Team, Korea Railroad Research Institute)
Ryue, Jungsoo (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Publication Information
Journal of the Korean Society for Railway / v.18, no.3, 2015 , pp. 212-222 More about this Journal
Abstract
The characteristics of noise emission from tram systems should be investigated in order to design and construct an urban tram network that raises fewer environmental noise problems. In this paper, the characteristics of rolling noise from a tram were studied and a desired stiffness of the rail supports was proposed using a noise prediction model. The mobilities of embedded rails and resilient wheels were predicted using the Timoshenko beam model and the finite element model, respectively. The predicted mobilities were compared with the measured results. Compared with the measured values, the calculated noise level near the track showed small errors for frequencies higher than 300 Hz. Then, the source strengths of rail and wheel components were examined by varying the rail supporting stiffness and the slab supporting stiffness so that suitable stiffness values could be estimated that would reduce noise radiated from rails and wheels but that would not greatly increase the ground vibration.
Keywords
Rolling noise; Resilient wheel; Tram noise;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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