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Wyświetlanie 1-15 z 339
Tytuł:
A Two-stage approach for an optimum solution of the car assembly scheduling problem Part 1. Problem statement, solution outline and tutorial example
Autorzy:
Mazur, M.
Niederliński, A.
Powiązania:
https://bibliotekanauki.pl/articles/229304.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
car sequencing
car assembly scheduling
workstation capacity constraints
Opis:
A new approach to solving realistic car assembly scheduling problems for mixed model assembly line is presented. It is proposed to decompose the problem into two subproblems: 1) a sequencing problem that generates admissible car sequences fulfilling capacity constraints for all car models in the production plan, 2) a scheduling problem that determines an admissible car sequence with shortest makespan. The details of this approach are illustrated by a simple numerical example.
Źródło:
Archives of Control Sciences; 2015, 25, 3; 355-365
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transmission of vibrations from the engine to the car body
Autorzy:
Aleksieva, V.
Valchanov, H.
Magdziak-Tokłowicz, M.
Wróbel, J.
Włostowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/243558.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
LDV
laser Doppler vibrometry
car body
car suspension
Opis:
Vibrations have become an important factor of vehicles. Vibration tests help identify, and then tune the automotive vehicle to improve the structural strength. Due to the increasing development of vehicles and machines and their widespread use. Increased research-using vibrations due to their low or zero interference with the vehicle under test. Vibration testing is often carried out using Laser Doppler Vibrometry (LDV), a device that is used for contactless measurement of vibration on the surface. The laser beam is directed from the device to the surface of interest, and the amplitude and frequency of vibration are extracted from the Doppler shift frequency of the reflected laser beam due to the movement surface. High values of vibration transmitted from the engine, and the way significantly affect the body of the vehicle and the driver. Article presents results of research carried out on vehicles powered by three different engines and rpm. Tests were carried out on an engine dynamometer in the same environmental conditions. Two of engines were with spark ignition, including one with a supercharged engine and compression ignition engine. The measurements were made using the Laser Doppler Vibrometry using Fast Fourier Transform. The spectrum obtained is used for further analysis to determine the acceleration level at various frequencies. Obtained from Fast Fourier Transform readings used for drawing graphs of frequency V acceleration. The results of the study are interesting and promising, as they show a significant difference in the velocity for spark ignition engines and compression-ignition.
Źródło:
Journal of KONES; 2016, 23, 4; 17-23
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of the quality index of cars
Autorzy:
Bazhinov, Oleksiy
Kravtsov, Mikhail
Bazhynova, Tetiana
Haiek, Yevhen
Kharchenko, Serhii
Shchur, Taras
Markowska, Katarzyna
Sękala, Agnieszka
Stecuła, Kinga
Kawka, Tomasz
Siudyka, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/27311330.pdf
Data publikacji:
2023
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
car
electric car
hybrid car
quality
method
technique
samochód
samochód elektryczny
samochód hybrydowy
jakość
metoda
technika
Opis:
This article presents theoretical studies of methods for assessing car quality indicators in the operation stage. Important criteria for determining the quality indicators of cars during the operation phase are the following: functional stability, ecology, comfort, technical solutions, and traffic safety. The problem of converting a multicriteria quality assessment to a single criterion is proposed to be solved by the method of determining a quality index. The methodology for the practical and actual implementation of this research is based on the evaluation of the quality index established on the average vehicle speed then the basic methodological principles are formulated. The quality index of a car is significantly dependent on the operating conditions. This article presents the correction coefficients for the quality index of base, hybrid, and electric vehicles, depending on the operating conditions. The studies and the proposed car quality index provide timely information on the characteristics of operating conditions, creating the necessary conditions and opportunities for automakers to improve the design of cars, promote the image of car brands, and increase sales.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2023, 118; 17--28
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electric-Car-Sharing in Urban Logistics – The Analysis of Implementation and Maintenance
Autorzy:
Turoń, Katarzyna
Sierpiński, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/504477.pdf
Data publikacji:
2018
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
Electromobility
urban logistics
e-car-sharing
maintenance of car-sharing
Opis:
The implementation of the sustainable transport policy in cities aims at finding various solutions that support the use of ‘clean energy’ in urban logistics. One of current global sustainable transport trends involves various measures related to electromobility. An example of electromobility in urban logistics is the e-car-sharing, or a short-term electric car rental. Since electric car-sharing is rather new to the transport market, operators and cities and metropolises may face various difficulties while implementing such services. Based on still operating and discontinued e-car-sharing systems, the authors analysed strengths and weaknesses of those systems with the focus on implementation and maintenance issues. The goal of the article is to determine strengths and challenges for e-car-sharing in urban logistics. The article is designed to assist stakeholders interested in the implementation of e-car-sharing. The analysis was provided under the international research project of ‘Electric travelling platform to support the implementation of electromobility in Smart Cities based on ICT applications’ funded from the National Research and Development Centre as a part of the ERA-NET CoFund Electric Mobility Europe Programme.
Źródło:
Logistics and Transport; 2018, 40, 4; 129-136
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integration of Management Systems in Railway Transport
Autorzy:
Chruzik, Katarzyna
Mindur, Leszek
Powiązania:
https://bibliotekanauki.pl/articles/504018.pdf
Data publikacji:
2018
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
electromobility
urban logistics
e-car-sharing
maintenance of car-sharing
Opis:
The mandatory management systems implemented since 2008 in rail transport resulting from legal requirements [1-8], very often (especially in the first years of implementing the requirements) functioned independently of the optional procedural approach - ISO standard [9-10]. Currently, the integration of requirements in both the mandatory and voluntary areas has become common practice. Legal requirements and recommendations do not define or suggest any specific form of extending the existing management systems. Regulation EC 402/2013 in Article 3 point 7 [8] defines only the obligation of interaction between systems (interfaces mean all interaction points during the system or subsystem life cycle). The publication describes the relationship between the requirements in the field of management systems currently used in the railway system resulting from legal requirements (Safety Management System - SMS) and voluntary implementations (Quality Management and Environmental Management System).
Źródło:
Logistics and Transport; 2018, 40, 4; 5-10
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Are we ready for electric cars?
Autorzy:
Karczewski, Mirosław
Szczęch, Leszek
Polak, Filip
Powiązania:
https://bibliotekanauki.pl/articles/242153.pdf
Data publikacji:
2019
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
electric car
car battery charger
power supply
electricity production
Opis:
Are we ready for electric cars?
Źródło:
Journal of KONES; 2019, 26, 3; 69-74
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Defeating automotive security systems and exploiting rules of law as the modi operandi of car thieves
Autorzy:
Konieczny, Marcin Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1595872.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
theft
car
burglary
Opis:
Electronic anti-theft security systems have been installed in cars for more than 20 years. Despite technological development and ever newer anti-theft car security devices, criminals continue their efforts to defeat all kinds of obstacles with the intention to unlawfully take possession of property. If they want to steal modern cars, thieves must demonstrate profi- ciency in electronics rather than mechanics, for unlocking and starting motor vehicles is today controlled by electronic systems. This paper presents the main methods of car theft, as well as measures to prevent it. Further in this paper, the author presents how thieves exploit rules of law and discusses a de lege ferenda proposal to improve Article 289 of the Penal Code by clarifying the length of time for which property may be possessed by an unauthorised person for that act to be considered as property taking and not a theft or burglary.
Źródło:
Acta Iuris Stetinensis; 2020, 30, 2; 47-59
2083-4373
2545-3181
Pojawia się w:
Acta Iuris Stetinensis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nonlinear method of precrash vehicle velocity determination based on tensor product of Legendre polynomials - luxury class
Autorzy:
Gosławski, Łukasz
Sys, Ewa
Mrowicki, Adam
Krukowski, Mateusz
Ma, Yanlin
Kubiak, Przemyslaw
Powiązania:
https://bibliotekanauki.pl/articles/2056093.pdf
Data publikacji:
2022
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
car crash reconstruction
car accidents
tensor product system
inverse system
EES
Opis:
Presented paper discusses a new, nonlinear approach to EES (Equivalent Energy Speed) parameter determination in frontal car collisions. This method is based on tensor product of Legendre polynomials and in this case considers Luxury car class. Methods that are used up till now are based on a linear dependency between mass, velocity and deformation. This is of course a simplification that was necessary, due to limitation in computation power of computers when this method was introduced decades ago. The contemporary resources allowed Authors to develop a much more sophisticated method. The mathematical model was developed using data shared by National Highway Traffic Safety Administration (NHTSA). This database covers a large number of test cases along with various information including vehicle mass, crash velocity, chassis deformation etc. New method proves to be more accurate than the currently used approach utilizing linear dependency of deformation force and deformation of the vehicle.
Źródło:
Archiwum Motoryzacji; 2022, 95, 1; 53--64
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution of masses and presses on axles and wheels and vehicles’ properties
Autorzy:
Rybak, Piotr
Wiśniewski, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/242007.pdf
Data publikacji:
2019
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
car
mass
pressures
properties
Opis:
One of the most important parameters affecting traction properties as well as driving safety, especially with regard to vehicles with special purpose, is the distribution of wheel and axle loads on the ground. This issue should be taken into account during the process of creating new vehicles as well as during the modernization process. In the first case, it is quite simple because the mass distribution is shaped already in the design phase. In the second case, the problem is more complex, because with modernization solutions we enter an already existing structure. Modernization basically assumes improving the performance and capabilities of the vehicle with possibly small changes in its base structure. Thus, it imposes important boundary conditions. The article presents the methodology of measurement and selected results of measurements of mass distribution as well as wheel and axle loads of selected motor vehicles during their advanced modernization (STAR 266 cars to the version STAR 266M2 and Honker 2000 to the version Honker M-AX). Modernizations carried out by Autobox Innovations Ltd. Lim. Par are mainly focused on increasing the traction of vehicles, traffic safety, and driving comfort. Measurements were made at the above-mentioned company.
Źródło:
Journal of KONES; 2019, 26, 1; 141-146
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Car-Sharing Development – Current State and Perspective
Autorzy:
Mindur, Leszek
Sierpiński, Grzegorz
Turoń, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/905722.pdf
Data publikacji:
2018
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
car-sharing,
transport systems
Opis:
The article presents the development of urban car-sharing systems. In recent years we have observed substantial increase in the number of such systems implemented all over the world. The number of users has also been rapidly growing which translates into the impact car-sharing services have on transportation behaviour. Additionally, the process contributes to changes of the modal split. The analysis presented covers systems in operation in Europe, Asia and North America. The article is divided into two parts. The first one presents historical development of car-sharing systems, whereas the second, prospects for their development in 2020-2025.
Źródło:
Logistics and Transport; 2018, 39, 3; 5-14
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Two-stage approach for an optimum solution of the car assembly scheduling problem. Part 2. CLP solution and real-world example
Autorzy:
Mazur, M.
Niederliński, A.
Powiązania:
https://bibliotekanauki.pl/articles/230028.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
car sequencing
car assembly scheduling
workstation capacity constraints
constraint logic programming
Opis:
A Constraint Logic Programming (CLP) tool for solving the problem discussed in Part 1 of the paper has been designed. It is outlined and discussed in the paper. The program has been used for solving a real-world car assembly scheduling problem.
Źródło:
Archives of Control Sciences; 2015, 25, 3; 367-375
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The circumstances of car crime and current changes in its profile
Autorzy:
Konieczny, Marcin K.
Powiązania:
https://bibliotekanauki.pl/articles/1804098.pdf
Data publikacji:
2020-11-30
Wydawca:
Wyższa Szkoła Policji w Szczytnie
Tematy:
Crime
theft
car
counteracting
Opis:
The article presents the evolution of car crime. It discusses the causes and conditions of vehicle theft. It also presents an aspect of the professionalisation of criminals, which was infl uenced by the emergence of modern anti-theft systems. It has also resulted in the creation of groups, among which individuals are engaged in a specifi c task involving planning, taking the vehicle, and then its legalisation and sale. The paper also discusses the issues of counteracting car crime, including the importance of international cooperation of police services and cooperation of vehicle manufacturers, which helps to prevent such criminal acts.
Źródło:
Przegląd Policyjny; 2020, 139(3); 151-161
0867-5708
Pojawia się w:
Przegląd Policyjny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Current Methods of Vehicle Theft and Legalisation
Autorzy:
Konieczny, Marcin Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1804608.pdf
Data publikacji:
2020-07-17
Wydawca:
Wyższa Szkoła Policji w Szczytnie
Tematy:
theft
car
legalisation
insurance
Opis:
The article discusses motor vehicle theft and legalisation. Despite modern methods of securing this kind of property, such offences are still committed by criminals. This type of crime is determined by the large and fast fi nancial profi ts, which criminals make not only from selling such cars, but also from ransoms obtained from the owners for returning the stolen vehicles. Criminal groups are also interested in vehicles carrying cargoes that are sold by the group or become objects of ransom obtained from owners. In the article, the author presents methods and techniques of stealing vehicles used by thieves in recent times. Moreover, the structure of criminal groups and the individual roles of their members are discussed. Furthermore, methods of legalising vehicles through previously stolen or counterfeited documents are presented, thanks to which buyers and public authorities are not able to get an idea of the practice. In most cases, the sale of properly prepared vehicles and documents is carried out under the pressure of time and attractive prices. In the last part of the article, the author presents the issue of obtaining compensation for stolen vehicles. This type of criminal activity is also a source of income for groups dealing with car theft.
Źródło:
Przegląd Policyjny; 2020, 137(1); 119-134
0867-5708
Pojawia się w:
Przegląd Policyjny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Possibility of the Evaluation of Injuries of an Unbelted Passenger in a Vehicle and the Need for Special Procedures while Inspecting the Site of the Accident
Autorzy:
Bobrov, Nikita
Mandelík, Jan
Havaj, Peter
Rábek, Vlastimil
Piwowarski, Juliusz
Powiązania:
https://bibliotekanauki.pl/articles/1836618.pdf
Data publikacji:
2016
Wydawca:
Wyższa Szkoła Bezpieczeństwa Publicznego i Indywidualnego Apeiron w Krakowie
Tematy:
car accident
forensics
FORTIS
Opis:
Article concerns the issue of car accident scene investigation. An example of modern forensic techniques usage is given, with potential for implementing the FORTIS system as an element of trail.
Źródło:
Security Dimensions; 2016, 20(20); 132-164
2353-7000
Pojawia się w:
Security Dimensions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Increasing the Carrying Capacity of the Solid-Body Rail Freight Car
Autorzy:
Baranovskyi, Denys
Myamlin, Sergiy S.
Kebal, Ivan
Powiązania:
https://bibliotekanauki.pl/articles/2201743.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
load-bearing floor
rail freight car
carrying capacity
static analysis
freight car
design
Opis:
In paper has been carried out to develop a load-bearing floor to increase the carrying capacity of the solid-body rail freight car. An analysis of the structures made it possible to formulate the hypothesis that the load-bearing floor of the solid-body rail freight car should have a different cross-sectional shape. As a result, the load-bearing floor of the solid-body rail freight car was proposed, making it possible to reduce the consumption of materials by 1 to 2%. The maximum equivalent stresses (according to Mises) of the proposed load-bearing floor of the solid-body rail freight car in static analysis are 210.7 MPa, which is less than the yield limit of simple carbon steel. The proposed technical solution allows one to increase the carrying capacity of the solid-body rail freight car by 1.4-1.7 tons. The proposed technical solutions for the future operating conditions of rail freight cars make it possible to reduce the number of units in a train by 1-2 units while maintaining the gross weight of the train.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 3; 219--225
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 339

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