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Fakulteta za strojništvo, Ljubljana (FSLJ)
  • Improving performance of polymeric vibration isolation elements using hydrostatic pressure [Elektronski vir]
    Bek, Marko ; Emri, Igor
    We are presenting the findings on recently published paper on the new and improved way of utilizing polymeric materials for vibration damping. We present the analysis of pressure dependence of three ... thermoplastic polyurethane (TPU) materials on vibration isolation. Aim of this investigation was to analyze how much the performance of isolation can be enhanced using patented Dissipative bulk and granular systems technology. Based on this technology Granular damping elements (GDE), were developed. GDE consists of a container, made of woven basalt, carbon or glass fibers, which is filled and pressurized with polymeric granular materials with multi-modal particles size-distribution. Due to the flowlike behavior of granulated polymers, the generated pressure within the container will be hydrostatic and will act on polymeric particles themselves, and consequently modify frequency dependence of their energy absorption properties. Hence, with a proper pressurization we may shift the material energy absorption maximum to any desired frequency. The goal of this contribution is to show how the effect of pressure and frequency of three polyether-based thermoplastic polyurethane (TPU) materials on vibration isolation. The investigated materials are three BASF Elastollan TPU materials: (i) 1190A, (ii) 1175A, and (iii) 1195D. We investigated properties of TPU materials in solid state, which after granulation are potential candidates for producing the new generation GDE damping elements.
    Vir: Book of abstract [Elektronski vir] : MTDM 2018 (F.71-72)
    Vrsta gradiva - prispevek na konferenci
    Leto - 2018
    Jezik - angleški
    COBISS.SI-ID - 16267547

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