Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "safety of vehicle" wg kryterium: Temat


Wyświetlanie 1-11 z 11
Tytuł:
Safety requirements for road vehicles
Autorzy:
Liščák, Š.
Moravčík, L
Jaśkiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/359904.pdf
Data publikacji:
2014
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
technical requirements
safety of vehicle
construction of vehicle
regulatory acts
approval of Vehicle
Opis:
The road safety is affected by several factors quality of infrastructure, behaviour of drivers, including their proper training and also safe cars. For the safety of vehicles in the approving process a number of regulations (regulatory acts) apply, regulating the technical requirements in the active and passive vehicle safety, but also in the environment. In the area of technical requirements for vehicles and their parts significant changes occur constantly, mainly due the progressive technological developments. A large number of regulatory acts are often changed due to the tightening. These regulatory acts relates directly to manufacturers, because their manufactured vehicles have to meet these requirements. That these regulatory instruments are evolving in the right direction proved the fact that due to better road safety the number of fatal accidents in the last two decades shrunk, although the volume of traffic has tripled. A significant progress has been achieved only through the improved vehicle safety and only in a small measure thanks to the improvement and upgrading of the infrastructure.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2014, 39 (111); 94-99
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing of the torsional stiffness of the passenger car frame and its validation by means of finite element analysis
Autorzy:
Podkowski, Krzysztof
Małczuk, Adrian
Stasiak, Andrzej
Pawlak, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/263004.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
vehicle torsional stiffness
FEM
FEA
validation
passive safety of the vehicle
Opis:
The paper presents the results of the conducted tests of torsional stiffness of the VOSCO S106 passenger car, as well as the validation process of these tests by means of numerical analyzes using the FEM finite element method. The most important element of the vehicle structure is the part of the spatial frame or the safety cage. Engine, brake system, fuel system and steering system, suspension as well as body and parts, their mounting nodes, hinges, locks, etc. are attached to the frame. The frame must therefore have adequate strength to protect the driver in the event of a tipover or impact. The frame is usually made of steel pipes with the prescribed dimensions and strength according to regulations. The torsional stiffness of the vehicle chassis has a significant influence on its driveability and therefore is an important parameter to measure. In this article, the torsional stiffness of the vehicle frame is calculated experimentally, which was then verified by finite element analysis (FEM) using the Altair HyperWorks program.
Źródło:
Archiwum Motoryzacji; 2019, 85, 3; 83-101
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The analysis of the influence of the rear seat passenger position on the kinematics and dynamic loads on a torso and legs during a road accident
Autorzy:
Prochowski, L.,
Żuchowski, A,
Powiązania:
https://bibliotekanauki.pl/articles/245281.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
road transport
vehicle safety
crash tests
safety of passengers
rear seat
Opis:
The analysis carried out by the authors indicates high threat to the rear seat passengers in passenger cars during a road accident. Vehicle designers indicate potential threats for passengers when they take a position in a car which is unexpected by a manufacturer of passive protection systems. Based on that, the tests were prepared in order to consider several different positions of a rear seat passenger. In particular, attention was paid to a threat to passengers when they take a position unexpected by a manufacturer of the passive protection systems in a car. Indicating and justifying a need to adjust the operation of the individual protection means to a passenger anatomy and current passenger position in a car in order to optimize his protection makes an important aim of these tests. This paper presents the results of the tests performed with a Hybrid III dummy, size M50, placed in three different positions in the back seat of a car. During each test, a series of physical values were measured and the motion of a dummy against the car body and the car interior components were filmed. The effects resulting from a change of a passenger’s position, observed on the courses of dynamic loads occurring during an accident, were analysed. Despite of small changes to a passenger’s position, their significant influence on the dummy movement during a frontal collision of a car and an obstacle was observed.
Źródło:
Journal of KONES; 2013, 20, 2; 335-342
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Risk of injury for the front and rear seat passengers of the passenger cars in frontal impact
Autorzy:
Żuchowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/246867.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
road transport
vehicle safety
crash tests
safety of passengers
rear seat
Opis:
The dynamic loads acting on a human body during a road accident may cause bodily injuries. They are dependent not only on the car structure and applied means of individual protection but also on the anthropometric features of a human body and its location in car. The safety of the car occupants on the rear seats in the passenger cars has been treated as a secondary issue so far. The achieved stage of the structure of that equipment for the rear seat occupants makes an important confirmation of that state. Usually there is no adjustment of the seat belt fixing point position, seat belt pretensioners, seat adjustment. This paper considers the risk of injury for the front and rear seat passengers of the passenger cars on the basis of analysis of dynamic loads that can affect them during the road accident. The attention was paid to the adults and children aged about 10 years. The dynamic loads were analysed with making use of experimental results of frontal flat barrier impact. During the tests, the passengers are protected by typical passive safety systems on the front and the rear seats. In the evaluation used the criteria of the biomechanical human body resistance to the impact load effect. The attention is paid to relations between a seat occupied in a car and the probability of injuries. The analysis of the laboratory impact tests was preceded by the assessment of risk of injury of the front and rear seat passengers in the real road accidents, which has been prepared based on the literature data.
Źródło:
Journal of KONES; 2012, 19, 3; 507-518
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problem of the selection of the rate of the grip of tyres to the roadway covered with petroleum-derived substances
Autorzy:
Aleksandrowicz, P.
Żółtowski, B.
Powiązania:
https://bibliotekanauki.pl/articles/2073664.pdf
Data publikacji:
2015
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
rate of the adhesion
road safety
slide of the vehicle
Opis:
The area of the roadway covered with petroleum-derived substance is characterized by lowering the grip of tyres of the vehicle to the roadway. In realistic conditions of the road traffic that kind of obstacles are with difficulty noticeable for the driver and sedatenesses constitute the element of surprise which in combination with violent lowering the rate of the adhesion usually results in loss directional of vehicle. The vehicle which fell into the unchecked skid, in particular on the curve of the road is posing a threat to drivers driving up from the opposite direction on account of random migration of such a vehicle to their traffic lane. Driving vehicles on the roadway this way polluted also have limited possibilities of taking defensive action in order to avoid confronting. For the evaluation of the bearing of drivers in understanding violating by them safety rules in the road traffic on the roadway polluted with vehicles with substances mentioned above applying the rate of the adhesion which is appropriate in calculations and simulations is significant to the analysed road situation. In the article so a problem of the selection of this rate was taken relating to the case study of an existing road accident consisting in inducing collision of two vehicles moving along an asphalt wet roadway polluted with petroleum-derived substance - with diesel.
Źródło:
Journal of Polish CIMEEAC; 2015, 10, 1; 7--15
1231-3998
Pojawia się w:
Journal of Polish CIMEEAC
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Safety of crews and sz rp vehicles exposed to the impact in asymmetric environment
Autorzy:
Ciekot, Z.
Smoczyński, Z.
Powiązania:
https://bibliotekanauki.pl/articles/246714.pdf
Data publikacji:
2015
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
asymmetric actions
safety
armour resistance
levels of protections
vehicle equipment
Opis:
In the article, a brief overview of the measures taken in order to improve the safety of the crews and vehicles is presented. A few examples have been shown. The analysis of the attacks impact on the vehicles was performed on the basis of Polish Military Contingents in Iraq and Afghanistan, In addition, the determinants of endangering of the crews are presented and the resolutions that were undertaken are discussed. It should be noted, that in today's armed conflicts, the safety of the soldiers pursuing combat jobs is a priority. Therefore, the most important issue is to meet the requirements for vehicles security levels. An appropriate vehicle protection level should be taken into account during the determination of the technical assumptions and in the next step verified while the prototype testing in research and development centres. It is assessed that the use of various systems and means of vehicle protection in the new 20 the century have been inspired by operations carried out in Iraq and Afghanistan, where the classics faced the new unpredictable form of combat. However, is unconventional, asymmetric war something new? This is a typical guerrilla war run by the other side by means available for them. It seems that the coalition was not prepared for that form of operations in many regards.
Źródło:
Journal of KONES; 2015, 22, 1; 63-74
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Results of the crash tests of electric cars
Autorzy:
Żuchowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/243537.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
road transport
vehicle safety
crash tests
safety of passengers
electric vehicles
transport drogowy
bezpieczeństwo pojazdu
testy zderzeniowe
bezpieczeństwo pasażerów
pojazdy elektryczne
Opis:
The work presents the results of crash tests carried out with six electrical car models (from 2012-2013), with the weight of 1200-2300 kg (Smart Electric Driver, Mitsubishi IMiEV, Nissan Leaf, CODA, Ford Focus BEV, Tesla Model S). The results were published on the Internet by the National Highway Traffic Safety Administration (USA), and the tests involved a car travelling at the speed of 56 km/h, hitting frontally into a non-deformable (stiff) barrier, positioned perpendicularly to the car’s direction of movement. Particular attention was paid to the deformation of the car after hitting the barrier, so-called stiffness characteristics of the frontal crumple zone, and to the loads on the dummies placed at the driver’s and passenger’s seat (Hybrid III, a 50-centile man and a 5-centile woman). Results of the tests with electric cars were compared with the results of the tests with over a hundred of combustion engine cars with similar weight and type of car body (sedan, hatchback). The tests proved that, in the majority of electrical cars tested, the deformation of the frontal crumple zone after hitting an obstacle is larger than in case of similar cars with internal combustion engine. Because of that, the dynamic loads on the occupants of the vehicle tend to be smaller, as indicated by measured loads on the heads and chests of the dummies. The results may suggest that the frontal crumple zone may be better constructed in the case of electric cars, while the design possibilities regarding that area are limited in standard cars due to the combustion engine, which is not deformed during the accident, which makes it more difficult for the energy of the crash to dissipate.
Źródło:
Journal of KONES; 2018, 25, 1; 483-490
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Non-destructive testing of vehicle elements responsible for safety of their operating time
Badania nieniszczące elementów pojazdów odpowiedzialnych za bezpieczeństwo ich użytkowania
Autorzy:
Jósko, M.
Powiązania:
https://bibliotekanauki.pl/articles/334900.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
non-destructive testing methods
testing of vehicle elements
safety of operating time
nieniszczące metody badań
badania elementów pojazdów
bezpieczeństwo użytkowania
Opis:
The main purpose of the paper is presentation of the possibilities of non-destructive methods for determination of structural discontinuity of the selected parts of motor vehicle chassis systems, responsible for safety of their operating. In the paper are shown non-destructive methods in aspect of their application to condition assessment of parts of machines and vehicles, and examples of application of selected non-destructive methods to the parts responsible for operating safety. As conclusion, is stated the possibility of application of non-destructive methods to evaluation of material discontinuity of vehicle and machine parts that impacts the technical condition subassemblies of vehicles and safety during their operating time.
Głównym celem artykułu jest przedstawienie możliwości metod nieniszczących dla określenia nieciągłości struktury wybranych części układów podwozi pojazdów mechanicznych, odpowiedzialnych za bezpieczeństwo ich eksploatacji. W artykule przedstawiono nieniszczące metody badań w aspekcie ich zastosowania do oceny stanu części maszyn i pojazdów oraz przykłady zastosowania wybranych metod nieniszczących do części, odpowiedzialnych za bezpieczeństwo użytkowania. W konkluzji stwierdzono możliwość zastosowania metod nieniszczących do oceny nieciągłości materiału części, odpowiedzialnych za stan techniczny podzespołów pojazdów i maszyn oraz bezpieczeństwo podczas ich użytkowania.
Źródło:
Journal of Research and Applications in Agricultural Engineering; 2017, 62, 2; 54-58
1642-686X
2719-423X
Pojawia się w:
Journal of Research and Applications in Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Utilizing crash and violation data to assess unsafe driving actions
Autorzy:
Rezapour Mashhadi, M. M.
Wulff, S. S.
Ksaibati, K.
Powiązania:
https://bibliotekanauki.pl/articles/2140833.pdf
Data publikacji:
2017
Wydawca:
Fundacja Centrum Badań Socjologicznych
Tematy:
No Improper driving
improper lane change
drive too fast for conditions
violation
citation
enforcement
Traffic Safety
road safety
Multinomial logistic regression
vehicle maneuver
point of impact
Opis:
Wyoming has one of the highest crash rates in the United States and a higher fatality rate than the U.S. average. These high rates result from many factors such as the high traffic through I-80 and the mountainous areas of Wyoming. This study employed two approaches to study contributory factors to crashes in the most hazardous interstate, I-80, in Wyoming by employing crash and citation data sets. Different factors may contribute to different driver actions so it is important to consider these crash causes separately. Thus, multiple logistic regression models were used in this study to examine the differences in crash-contributing factors for three driver actions: driving too fast for conditions, improper lane change, and no improper driving. These driver actions account for about 70% of all the crash causes on this interstate. The same violations as the two driver actions, improper lane change and driving too fast for conditions, account for 42% of all the crashes. The literature has indicated that previous violations can be used to predict future violations, and consequently crashes. Therefore, these violations were identified to detect the groups that are at higher risk of involvement in crashes. The analyses indicated that there are substantial differences across different driver actions for crash and violation data. For instance, not-dry-surface conditions increased the estimated odds of driving too fast for conditions 33 times while it decreased the risk of no improper driving by an estimated 250%. Crash severity, number of vehicles, vehicle maneuver, point of impact, driver condition, and speed compliance also impacted different driver actions differently. The results of violation analyses revealed that the interaction between types of vehicle and various variables were significant. For instance, nonresident truck drivers were more likely to violate all types of risky violations, which increased the estimated odds of crashes, compared with resident truck drivers. Recommendations based on the results are provided for policy makers to reduce high crash rate in the state.
Źródło:
Journal of Sustainable Development of Transport and Logistics; 2017, 2, 2; 35-46
2520-2979
Pojawia się w:
Journal of Sustainable Development of Transport and Logistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of the economic crisis on the roadworthiness of vehicles in the Republic of Croatia
Einfluss der Wirtschaftskrise auf die Verkehrstaugslichkeit von Straßenfahrzeugen in der Republik Kroatien
Autorzy:
Bilić, S.
Janković, A.-M.
Ljubić Hinić, M.
Powiązania:
https://bibliotekanauki.pl/articles/375546.pdf
Data publikacji:
2015
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
economic crisis
vehicle maintenance
roadworthiness of vehicles
road safety
technical condition of vehicles
kryzys ekonomiczny
utrzymanie pojazdu
przydatność pojazdów do ruchu drogowego
bezpieczeństwo drogowe
stan techniczny pojazdów
Opis:
The impact of the economic crisis, i.e. the decrease in purchasing power in the Republic of Croatia, has been reflected negatively on the sales of new road vehicles and the maintenance plan of used road vehicles. A comparison of the results of technical inspections on vehicle roadworthiness has indicated a slight increase in unroadworthy vehicles, with a tendency for this to increase. Unroadworthiness and the average age of vehicles amounting to 12.18 years prompt for thinking about road safety in the Republic of Croatia. This paper aims to establish the extent of the increase in vehicle unroadworthiness and the importance of its reduction in order to increase road safety. The Republic of Croatia has adopted the National Road Safety Program for 2011-2020, accepting thereby a task that will be difficult to accomplish without organising training on the importance of vehicle roadworthiness.
Die Folgen der Wirtschaftskrise bzw. die verminderte Kaufkraft in der Republik Kroatien haben den Verkauf von neuen und den Instandhaltungsplan von gebrauchten Straßenfahrzeugen negativ beeinflusst. Durch den Vergleich der mit der Verkehrstauglichkeit von Straßenfahrzeugen verbundenen Ergebnisse technischer Kontrollen ließ sich ein leichter Anstieg von verkehrsuntauglichen Fahrzeugen, mit einer Tendenz zur Erhöhung, feststellen. Die technische Untauglichkeit sowie das Durchschnittsalter von Straßenkraftfahrzeugen von 12,18 Jahren lassen Bedenken über die Sicherheit des Straßenverkehrs in der Republik Kroatien aufkommen. Das Ziel dieser Untersuchung war es festzustellen, wie stark die Verkehrsuntauglichkeit von Straßenfahrzeugen angestiegen ist sowie auf die Wichtigkeit ihrer Minderung hinzuweisen, mit dem Zweck, die Sicherheit des Straßenverkehrs zu erhöhen. Die Republik Kroatien hat das Nationalprogramm der Sicherheit im Straßenverkehr 2011-2020 verabschiedet und sich dadurch vor eine schwierige Aufgabe gestellt, die sie ohne Schulungsveranstaltungen, welche die Wichtigkeit der Verkehrstauglichkeit von Fahrzeugen zum Thema haben, wohl kaum erfüllen kann.
Źródło:
Transport Problems; 2015, 10, 2; 83-90
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydro pneumatic mechanical energy absorber enhancing passive safety of a motor vehicle
Autorzy:
Bogdevičius, Marijonas
Vitkūnas, Rolandas
Powiązania:
https://bibliotekanauki.pl/articles/374543.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
vehicle safety
hydro mechanical energy absorber
absorption of kinetic energy
mathematical model
dynamics process
bezpieczeństwo pojazdu
hydro-mechaniczny pochłaniacz energii
absorpcja energii kinetycznej
model matematyczny
proces dynamiczny
Opis:
The purpose of this paper is to describe and analyse a mechanical device designed to enhance the safety of a motor vehicle. The topic is addressed by analysing the method of absorbing kinetic energy during a car collision with an obstacle. The article analyses opportunities to convert motor vehicle’s kinetic energy into another type of energy in the case of collision. For this purpose, various mechanical, hydraulic or pneumatic devices are normally used. Such devices are designed to absorb collision energy and reduce or eliminate its impact on the driver, the passengers or cargo in the motor vehicle. The absorber may be used as an additional element of safety to the passenger and the cargo. The energy absorber described in the present article incorporates hydraulic, pneumatic and mechanical components. The description of the absorber presented here is based on mathematical calculations characterizing mechanical, pneumatic and hydraulic processes in the equipment. The analysis of the developed mechanism employs a special application to calculate major parameters of the motor vehicle and the installed absorber. The article also gives a sensitivity analysis of the effect of the rod length on the decrement of the vehicle's kinetic energy.
Źródło:
Transport Problems; 2019, 14, 2; 5-17
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-11 z 11

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies