This paper focused on the main static and dynamic characteristics in case of rubber elements designated to damp the vibrations transmitted by means of the railway to the surrounding buildings. Thus, the experimental methods performed on a stand having harmonic excitation in case of actual loading under dynamic regime both stationary and transient attaining the resonance point are presented. Basing on this the system dynamic parameters such as: dynamic rigidity, critical damping fraction, dissipation coefficient (histeresys), can be determined. Aiming this the free damped vibration method and the controlled excitation method with monotone increasing variation for the excitation frequency have been determined. In this way can comparatively be determined both the rigidity and the damping dynamic characteristics of the rubber for various manufacturing receipts taking into account the chemical compositions as well as the manufacturing process. Finally, the paper presents experimental results obtained by the research institute ICECON during the works carried out for the tram rails in Bucharest, Romania.
Dynamic characteristics for damping systems designated to insulate noise and vibration in case of tram rail
Dynamische Kennzeichnung von Dämpfungssystemen für die Lärm- und Schwingungsisolation von Straßenbahnschienen
2005
8 Seiten, 2 Bilder, 1 Tabelle, 5 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
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