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Tytuł	Determination of Injury Criteria and Passenger Kinematics Considering Variable Seat Positions During a Car Accident
Osoby	Autorzy: Aleksander Górniak Partner: Politechnika Wrocławska
Opis	The research was conducted at the Vehicle Safety and Dynamics Laboratory of the Wrocław University of Science and Technology. The experiments were planned and analyzed in accordance with the PN-ISO 3534-3 standard. The research analyzed two main input parameters: seatback angle and crash pulse. The seatback angle ranged from 21° (the most upright seat, nominal position declared by the supplier), 38° (middle value), to 55° (seatback fully reclined). Additionally, a seatback angle of 25° was included, in accordance with FMVSS 202aD and CNCAP standards. The crash pulse in rear-end collisions ranged from 10g to 20g. The dependent variables were head acceleration, chest acceleration, and HTT (Head-to-Torso Rotation). HTT is a neck injury criterion described in the FMVSS 202aD standard, measured using a Hybrid III dummy. According to the FMVSS 202aD standard, the threshold value for the HTT angle is 12°. A sinusoidal type of collision impulse was chosen for simulating the collision, as the Hybrid III dummy was used, and this approach is most justified in this context. The value of the H-T angle increases with each subsequent increase in seatback recline angle. Interestingly, the increase in the H-T criterion for angles from 21° to 38° is relatively small; the measurement results for the seat reclined at 25° and 38° are practically within the margin of error and differ only slightly from the H-T measured for tests with the seatback at 21°. However, there is a significant difference for the criterion measured with the seat fully reclined. This trend was observed for each crash pulse. Such a deviation from the other measurements indicates a nonlinearity of the phenomenon. Analysis of the recordings confirms the sensor measurements. The dummy's kinematics are similar during tests with the seat reclined from 21° to 38°, and thus somewhat predictable. Therefore, it was initially assumed that since the measurement results in the extreme and middle seat positions do not differ significantly, the results for the fully reclined seat should be in the same range. However, it turned out that during tests with the seat fully reclined, the dummy's kinematics are completely different. The head's contact time with the headrest and the torso movement along the seat (the so-called ramping effect) differ. (Angielski)
Słowa kluczowe	"Rear impact"@en, "Urazy typu whiplash"@pl, "Out of Position"@pl, "Sled test"@en
Klasyfikacja	Typ zasobu: zbiór, baza danych Dyscyplina naukowa: Dziedzina nauk inżynieryjno-technicznych / inżynieria mechaniczna (2018) Grupa docelowa: naukowcy Szkodliwe treści: Nie
Charakterystyka	Miejsce powstania: Vehicle Safety and Dynamics Laboratory Wrocław University of Science and Technology Czas powstania: 2024 Język zasobu: Angielski
Licencja	CC BY-SA 4.0
Informacje techniczne	Deponujący: Aleksander Gorniak Data udostępnienia: 06-02-2025
Kolekcje	Kolekcja Politechniki Wrocławskiej

Cytowanie

Skopiowano

Aleksander Górniak. Determination of Injury Criteria and Passenger Kinematics Considering Variable Seat Positions During a Car Accident. [zbiór, baza danych] Dostępny w Atlasie Zasobów Otwartej Nauki, . Licencja: CC BY-SA 4.0, https://creativecommons.org/licenses/by-sa/4.0/legalcode.pl. Data dostępu: DD.MM.RRRR.

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