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Wyszukujesz frazę "car speed" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Preliminary studies of vertical acceleration of a passenger car passing through the speed bump for various driving speeds
Autorzy:
Haniszewski, Tomasz
Michta, Agata
Powiązania:
https://bibliotekanauki.pl/articles/374733.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
Matlab
simulation
car
human
speed bump
symulacja
samochód
człowiek
próg zwalniający
Opis:
The article proposes a phenomenological model of a passenger car. The model includes the biomechanical model of human bodies in the sitting position of Muksian and Nash acting as passengers, while the driver’s weight has been reduced to the concentrated weight of the loading seat. The research carried out in this study consisted of passing the vehicle through a transverse obstacle along the so-called speed bump. Vehicle passes through the threshold at three different speeds: 10km/h, 20km/h, and 30km/h. The purpose of the conducted experiments was to initially estimate the values of accelerations acting especially on the passenger at selected driving speeds. On the basis of conducted tests, it was possible to verify the numerical model of the vehicle overcoming the obstacle on the road. This approach allows the use of the proposed model to verify the forces and accelerations affecting the passenger, specified before any selected specific biomechanical model of the human person, for example, a model of pregnant women in this configuration allows us to estimate the forces and accelerations acting on the embryo while overcoming some obstacles on the road.
Źródło:
Transport Problems; 2019, 14, 1; 23-34
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research of rotary piston engine use in transport power plants
Autorzy:
Mytrofanov, Oleksandr
Proskurin, Arkadii
Poznanskyi, Andrii
Powiązania:
https://bibliotekanauki.pl/articles/2203852.pdf
Data publikacji:
2021
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
rotary piston air engine
hybrid transport power plant
compressed air
external speed characteristics
car power balance
dynamic characteristic of a car
silnik powietrzny z tłokiem obrotowym
sprężone powietrze
charakterystyka prędkości zewnętrznej
bilans mocy samochodu
charakterystyka dynamiczna samochodu
Opis:
A schematic diagram of a transport hybrid power plant using a new design RPE-4.4/1.75 rotary piston air engine is proposed. Its external speed characteristic is determined, according to which the maximum engine power is 8.75 kW at 850 rpm and the maximum torque is 127.54 N∙m at 400 rpm. For various gears and speeds, all the components of the power balance were determined and the dynamic characteristic of the hybrid car was obtained when operated on an air engine. According to the dependences of the power balance, the total traction force from the rotary piston air engine on the driving wheels is 5 kN. The performance of acceleration of a hybrid car while working on an air engine is estimated, namely, the dependences of acceleration, time, and acceleration path are obtained. In urban traffic, the required time to accelerate the car to a speed of 60 km/h is 15.2 s and the path is 173 m. The possible drive range of the hybrid car on compressed air without additional recharging is analyzed. On one cylinder with compressed air with a volume of 100 liters, an initial pressure of 35 MPa, and a final pressure of 2 MPa, the hybrid car can travel about 26 km.
Źródło:
Transport Problems; 2021, 16, 1; 165--178
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the dynamics of vehicle motion in case of sudden braking connected with damage of the tire
Autorzy:
Kovalev, Valery
Blyankinshtein, Igor
Morozov, Dmitry
Kazantsev, Andrew
Powiązania:
https://bibliotekanauki.pl/articles/1841220.pdf
Data publikacji:
2020
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
speed of movement
deceleration
turn of the car
angle of deviation
sidewise skid
forward-rotational movement
szybkość poruszania się
hamowanie
obrót samochodu
kąt odchylenia
poślizg boczny
ruch naprzód-rotacyjny
Opis:
One of the urgent problems to be solved in the analysis of road traffic accidents is the calculation of vehicle speed at the time of sudden braking. This makes it possible to determine the dynamics of further movement of the vehicle and to determine the technical ability of the driver to prevent a traffic collision. The article presents a metho employed in calculating the speed of the car at the time of sudden braking and determines the dynamics of movement up to its complete standstill. The correct calculation of the speed of movement allows us to obtain the reliability of the restored co-existence, as well as data for an objective analysis of the road traffic accident.
Źródło:
Transport Problems; 2020, 15, 1; 15-23
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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