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Search results for: MEASUREMENT METHODS, TYRE/ROAD NOISE, TYRE LABEL

Best results in : Research Potential Pokaż wszystkie wyniki (104)

Search results for: MEASUREMENT METHODS, TYRE/ROAD NOISE, TYRE LABEL

  • Zespół Katedry Konstrukcji Maszyn i Pojazdów

    Research Potential

    * Badania własności smarów i cieczy technicznych * Badania tarcia i zużycia elementów maszyn - dobór materiałów na współpracu-jące elementy, dobór środków smarowych, dobór alternatywnych materiałów umożliwiających pracę bez smarowania lub przy smarowaniu wodą * Badania diagnostyczne maszyn i urządzeń, badania trwałości i niezawodności * Projektowanie i optymalizacja konstrukcji nietypowych maszyn i urządzeń * Projektowanie urządzeń...

  • Zespół Biomateriałów

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    Inżynieria i technologia biomateriałów, inżynieria powierzchni, wytwarzanie implantów metalowych, rozwój materiałów odpornych na korozję

  • Katedra Aparatury i Maszynoznawstwa Chemicznego

    Research Potential

    * zasobów, możliwości pozyskania, konwersji, magazynowania i transportu energii ze źródeł odnawialnych, w tym energii słonecznej i biopaliw * możliwości odzyskiwania energii odpadowej w procesach przemysłowych i sposoby jej zagospodarowania * opracowanie procesów technologicznych recyklingu materiałowego zużytych modułów i ogniw fotowoltaicznych * opracowanie procesów technologicznych recyklingu materiałowego zużytych opon samochodowych *...

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Search results for: MEASUREMENT METHODS, TYRE/ROAD NOISE, TYRE LABEL

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Search results for: MEASUREMENT METHODS, TYRE/ROAD NOISE, TYRE LABEL

  • The EU Tyre Noise Label: The problem with measuring the noise level of only a few of all tyre variants

    Publication

    - Year 2022

    The STEER project, described in another Inter-Noise 2022 paper, has evaluated the performance of the noise label of the European tyre label. The major finding was that uncertainties of the tyre/road noise measurements were higher than should be accepted. One of the worst uncertainty sources was found to be the common practice to measure only some tyres of all sizes or variants within a tyre line, to save money. Generally, only...

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  • Comparison of road and laboratory measurements of tyre/road noise

    Publication

    - Year 2014

    Tyre/road noise is one of the major environmental problems related to road traffic. There are several measuring methods of tyre/road noise that may be carried out on the road (for example Coast-down and Close Proximity Method) or in the laboratory (Drum Method). Road measurements are preferred for evaluations of pavement properties while laboratory methods are mostly used to evaluate tyres. One of the biggest problems associated...

  • INFLUENCE OF MEASURING CONDITIONS ON TYRE/ROAD NOISE

    Publication

    - Year 2016

    A decisive factor for the development of tyres and road surfaces is the ability to conduct representative and reproducible measurements of selected characteristics related to the interaction of tyres and road surfaces. In terms of tyre/road noise measurements in Europe two methods described in ISO/FDIS 11819-2 and ECE Regulation No.117 are used. The latter is compulsory for assigning the tyre noise labels. The methodologies differ...

  • Tyre/road noise reduction by a poroelastic road surface

    Publication

    - Year 2014

    Low noise road surfaces of existing types may in favourable cases and in new conditions provide up to 7 dB of noise reduction. For higher noise reductions, innovative solutions must be sought. Poroelastic road surfaces (PERS) may be such a solution, which currently is studied in the EU project PERSUADE. This paper presents results of trials with a PERS version prefabricated by one of the project partners. Tests were made in a laboratory...

  • Temperature influence on tyre/road noise frequency spectra

    Publication

    - Year 2016

    The correction for temperature effect on measured tyre/road noise is very important as it may be one of the main sources of errors in measurement results due to substantial influence of this parameter on obtained values. The latest version of the Technical Specification ISO/CD TS 13471-1 about Temperature Corrections contains a proposal of correction procedure for normalizing measured noise levels to a reference air temperature...