Evaluation of the Antivibrating Damping Capacity in Case of Elastomers Used for Tram Railway Supporting
Journal Title: Romanian Journal of Acoustics and Vibration - Year 2012, Vol 9, Issue 2
Abstract
This paper is focused on the effect of elastomer supporting of the tram railways used for damping vibrations and noise transmitted to the surrounding buildings. For this, the experimental methods under dynamic regime both stationary and transient attaining the resonance point are presented. In this way the dynamic system parameters, namely: dynamic stiffness, the fraction of critical damping, coefficient of dissipation (hysteresis) were determined. Thus, the damped free vibration method was used and the controlled dynamic method with monotone increasing variation for the excitation frequency for stiffness and damping characteristics of rubber manufactured by various recipes. Finally, the paper presents experimental results obtained in the laboratory and the degree of noise reduction produce by tram railway in large urban areas of cities in Romania.
Authors and Affiliations
Gabriela MINDU
Keywords
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