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Wyświetlanie 1-2 z 2
Tytuł:
Vibration analysis of a turbocharger with an additively manufactured compressor wheel
Autorzy:
Andrearczyk, Artur
Bagiński, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2091138.pdf
Data publikacji:
2020
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
additive manufacturing
compressor wheel
vibration analysis
polymer
produkcja dodatkowa
koło sprężarki
analiza drgań
polimer
Opis:
This article presents the vibration analysis of a turbocharger, whose compression wheel was manufactured using a high-precision additive manufacturing technology. Currently, there are advance studies around the world for the development of parts of innovative fluid-flow machines using additive manufacturing techniques. The experimental research was carried out under conditions of reduced flow temperatures. The tests and the analysis were performed on a wheel manufactured using a 3D printing technology and on a conventionally used aluminium wheel. Apart from an FFT analysis of the vibration signal during machine operation, a machine run-up test was conducted (up to a speed of 105,000 rpm). The results showed the positive impact of the use of a plastic wheel on the dynamics of the system at a certain speed range, which might contribute to the development of a new method to optimise the geometry of flow systems in small high-speed turbomachines. A modified automotive turbocharger was subjected to experiments on a test stand.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2020, 107; 05--17
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving transportation safety of injured persons by taking into account the biomechanical characteristics of the human body
Autorzy:
Gogiashvili, Phridon
Lekveishvili, Revaz
LekveishvilI, Gocha
Powiązania:
https://bibliotekanauki.pl/articles/2098178.pdf
Data publikacji:
2021
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
vibrations
vibration suppression
vibration analysis
ambulance
tolerance criteria
injured patient
health deterioration level
patient safety
incident monitoring
drgania
tłumienie drgań
analiza drgań
ambulans
kryteria tolerancji
ranny pacjent
poziom pogorszenia zdrowia
bezpieczeństwo pacjenta
monitorowanie zdarzeń
Opis:
Ambulance vehicles play a vital role in sustaining the life of injured persons and should a provide safe transportation route to the medical institution. Transportation of injured patients in severe/critical conditions should be carried out with high caution, as there is no guarantee that patients’ health will not be harmed. The goal of this study is to minimize exposure to the external factors such as random shocks, sharp jumps, vibrations caused by irregular roads, speed breakers, weather, etc., that could influence the tasking ability of the medical team and further threaten the life of the already injured patient. This topic has not been widely researched and still requires implementation of novel standards that should improve the safety of the patient. This article aims to define the biomechanics of cabin occupant safety, introduce ways of collecting live data and develop new mechanisms that would allow safer transportation of patients without any meaningful health deterioration causing by the above-mentioned external factors. This study will identify safety hazards in the ambulance environment and determine the effectiveness of suggested countermeasures to mitigate any further injury or deterioration of the patient’s health.
Źródło:
Transport Problems; 2021, 16, 4; 107--119
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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