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    Wyświetlanie 1-3 z 3
    Tytuł:
    Effect of repeated vehicle braking on the warming of selected parts of the vehicle
    Autorzy:
    Synák, František
    Rievaj, Vladimír
    Kučera, Matej
    Šebök, Milan
    Skrúcaný, Tomáš
    Powiązania:
    https://bibliotekanauki.pl/articles/2091125.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    repeated braking
    temperature
    brake
    heat
    road safety
    hamowanie wielokrotne
    temperatura
    hamulec
    ciepło
    bezpieczeństwo ruchu drogowego
    Opis:
    The friction brakes convert a significant part of a vehicle’s kinetic energy into thermal energy. Some of its parts is distributed to the places around the brakes, and another part is accumulated in several vehicle components. This article is focused on the measurement of temperature increase of selected vehicle components during re-deceleration. These components include brake discs, brake pads, calliper, wheel rim and tire side in the area of its bead and tread. The measurements were performed during the repeated braking of a fully-loaded vehicle according to ECE Regulation No 13 - type I.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2020, 107; 183--196
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ways of reducing carbon dioxide from road transport
    Autorzy:
    Synák, František
    Gaňa, Ján
    Rievaj, Vladimír
    Mokričková, Lenka
    Powiązania:
    https://bibliotekanauki.pl/articles/262953.pdf
    Data publikacji:
    2019
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    carbon dioxide
    driving resistance
    emissions
    global warming
    Opis:
    Climate change and the associated global warming affect all of us. These changes cause the melting of the glaciers and consequently the increase in sea and ocean levels. This phenomenon threatens the existence of some of the island states. The warming casing all this was brought on by the economic activity of humans, with the greatest responsibility being attributed to the ever-increasing production of greenhouse gases. Transport generates large portion of these gases. When means of transport are in motion, they are affected by certain driving resistances which try to keep vehicle from moving. In order to overcome them, it is necessary to produce certain useful work equivalent to the measurement of driving resistances. An internal combustion motor is the most frequent source of such energy. It generates energy by oxygenating hydrocarbon fuels, and in addition to the useful work, it produces also unfavourable emission. The amount of such emissions equals to the amount of burnt fuel. Thus, levels of emissions can drop by reducing fuel consumption. The most commonly mentioned gas is the CO2. Reduction of CO2 production is essential to affect the high level of CO2. The article focuses on the possibilities of reducing CO2 from road transport. The possibilities of reducing CO2 from road transport are quantified in the form of mathematical model calculations.
    Źródło:
    Archiwum Motoryzacji; 2019, 86, 4; 41-54
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effects of vehicle load on driving characteristics
    Autorzy:
    Rievaj, Vladimir
    Vrábel, Ján
    Synák, František
    Bartuška, Ladislav
    Powiązania:
    https://bibliotekanauki.pl/articles/102297.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    gravity center of vehicle
    road curve radius
    speed at passage
    directional deviation
    vehicle stability
    środek ciężkości pojazdu
    promień łuku drogowego
    prędkość w przejściu
    odchylenie kierunkowe
    stabilność pojazdu
    Opis:
    Many traffic accidents are due to an incorrect assessment of the current situation by the driver of the vehicle. With correct assessment of the situation, the driver has also to take into account a number of other factors. This article focuses on some of these factors such as the vehicle load, vehicle speed and curve radius. The first part of the article deals with the position of the vehicle center of gravity (CG), which has a major impact on the driving characteritics of the vehicle. The paper demonstrates the calculation of the maximum speed of a car model and truck model (without load and with load) when cornering. The center of gravity has an effect on the vehicle axles load distribution, and thereby on braking forces. This issue is dealt with in the second part of the paper. In the last part the calculation of the braking force as a function of the adhesion coefficient of the tires depending on the road surface is mentioned. The importance of the contribution consists in quantifying the impact of vehicle load on its driving characteristics.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 1; 142-149
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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