Determining Dynamic Properties of Elastomer-Dampers by Means of Impact Testing

Abstract Background Damping elements made of elastomer materials are used in almost every mechanical system to prevent damage components caused by impact-like excitations and the resulting high-frequency, large-amplitude oscillations. The dynamics these operating conditions exceed performance limits conventional experimental testing methods, impeding validated predictions damper’s transmission behaviour. Objective A method is proposed directly investigate influence impacts on behaviour elastomeric dampers impact testing. Methods Torsional-loaded were experimentally investigated using a drop tower. During experiment, mass brought into contact with lever arm connected tested coupling. Measurements torsional oscillations comparison measurement results simple analytical model allow for determining coupling parameters stiffness damping ratio. Results characteristic ratio damper mapped as function excitation-amplitude frequency. drop-tower test servo-hydraulic measurements determined parameters. Conclusions Determining from highly dynamic impact-induced oscillation states proved be good approach supplement established methods.