Temat: wheeled vehicles - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of Research Method, Results and Regulations Regarding the Exhaust Emissions from Two-Wheeled Vehicles under Actual Operating Conditions
Autorzy:: Szymlet, Natalia
Lijewski, Piotr
Sokolnicka, Barbara
Siedlecki, Maciej
Domowicz, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/124348.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: air pollution
two-wheeled vehicles
exhaust emission
RDE methodology
PEMS
Opis:: The subject of this article was the analysis of the current state of legislation regarding the exhaust emissions from two-wheeled vehicles. The regulations and emission limits were analyzed and compared for different areas of the world. Moreover, the review of the legal provisions includes an individual approach to specific categories of two-wheeled vehicles. The study also describes the research and exhaust emission measurement methods from mopeds and motorcycles both under laboratory conditions and in actual operation. The methods were evaluated in the aspect of future emission requirements and trends. In addition, the results of emissivity measurements under actual operating conditions obtained in the Poznań agglomeration with the use of motorcycle units were discussed and analyzed. The values of road emissions of all toxic compounds limited by legislators were compared with emission standards.
Źródło:: Journal of Ecological Engineering; 2020, 21, 1; 128-139
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Kinematic simulation and numerical analysis of the suspension system of light wheeled vehicle
Autorzy:: Różyło, P.
Powiązania:: https://bibliotekanauki.pl/articles/243731.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: finite element method
kinematic simulation
suspension
light wheeled vehicles
numerical analysis
Opis:: The paper presents the process of kinematic simulation and FEM numerical analysis of the suspension system of the light-wheeled vehicle. Fragment of the suspension system is a set of simple vibration damping mechanisms occurring in light-wheeled vehicles. The materials used for analysis is aluminum, steel and rubber characterized by properties hyperplastic. The suspension system has been subjected to the force generated from the substrate, resulting from the prevailing inequality terrain. Kinematic simulation made using CAD software enabled the mapping of the actual behaviour of the suspension with a simple steering mechanism, while passing at the characteristic curvilinear track. Numerical investigations have enabled the analysis of stress distribution in the structural elements while pointing out areas with the highest levels of stress reduced, designated by HMH hypothesis (Huber-Mises-Hencky). The FEM analysis used local and global density of the mesh through which highlighted the level of maximum stress concentration. Result of reduced stress distribution shown exactly on the complete form of the test model of a wheeled vehicle suspension. In the analysis of numerical models have been used elasto-plastic materials and hyperplastic available in the Abaqus. Calculations were carried out taking into account the issues of using geometrically nonlinear Newton-Raphson method.
Źródło:: Journal of KONES; 2014, 21, 1; 241-247
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The concepts of modular combat vehicles
Koncepcje modułowych wozów bojowych
Autorzy:: Walentynowicz, J.
Powiązania:: https://bibliotekanauki.pl/articles/950094.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: wozy bojowe
modułowość
pojazdy gąsienicowe
pojazdy kołowe
combat vehicles
modularity
tracked vehicles
wheeled vehicles
Opis:: The growth of modularity and unifications of designed and introduced fighting vehicles is possible as a result of technical and technological achievements and changing conditions of present war operation. This factors require quick repair of damaged vehicles and interoperability of operations. The review of present conceptions of internal and external modularity of modern tactical fighting vehicles was introduced in the publication. External modularity was used for generating new families of tracked and wheeled vehicles and their exchangeable of internal modular sets: suspension and propulsion system, crew cabin and module with equipments. Internal modularity consist in application various length of vehicle bodies and simultaneously their different volumes and application of many unified units designed for existing vehicles. Implementation of hybrid propulsion systems for military vehicles and application many sources of energy on the board are connected with electric lines enlarges the possibilities of composition of the vehicles interiors by application many modular components which can be mounted in the most convenient places. Ideas of the modular construction of combat vehicles assure the maximum enlargement of repair and modernization compliance, and consequently the maintenance in line of maximum number modern and fully efficient vehicles.
Źródło:: Journal of KONES; 2007, 14, 2; 536-544
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Of Men and Equids: Piecing the Clay Images from Tell Arbid Back Together
Autorzy:: Makowski, Maciej
Powiązania:: https://bibliotekanauki.pl/articles/484059.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Instytut Kultur Śródziemnomorskich i Orientalnych PAN
Tematy:: terracotta anthropomorphic figurines
terracotta zoomorphic figurines
interpretation of the figurines
wheeled vehicles
popular iconography
Tell Arbid
Bronze Age Syria
North Mesopotamia
Opis:: This paper aims at analyzing relations between different types of clay figurines and models found at Tell Arbid, a site in northern Mesopotamia, in the Khabur region. Starting with a presentation of a set of third millennium BC clay objects – including an equid and an anthropomorphic figurines, as well as a wheel model – the author discusses those figurines which were deliberately shaped to fit, or to be combined with, other objects. Analyzing them against the backdrop of analogies from Mesopotamian iconographic sources allowed for defining some functional associations between the representations of males, wheeled vehicles and/or equids. The hypothetically reconstructed sets seem to reproduce scenes well-known from other media. Based on these observations, it is possible better to understand and to interconnect phenomena characteristic for the clay plastic art not just of the site but of the whole region: predominance of equids, prevalence of male over female images and popularity of model vehicles.
Źródło:: Études et Travaux (Institut des Cultures Méditerranéennes et Orientales de l’Académie Polonaise des Sciences); 2015, 28; 121-140
2084-6762
2449-9579
Pojawia się w:: Études et Travaux (Institut des Cultures Méditerranéennes et Orientales de l’Académie Polonaise des Sciences)
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Mechatronic design of a two-wheeled mobile platform
Mechatroniczny projekt dwukołowej platformy mobilnej
Autorzy:: Ręczkowicz, Szymon
Powiązania:: https://bibliotekanauki.pl/articles/24086897.pdf
Data publikacji:: 2022
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: self-balancing vehicles
Kalman filter
two-wheeled structures
pojazdy samobalansujące
filtr Kalmana
konstrukcje dwukołowe
Opis:: The article presents the results of work on a project for a two-wheeled self-balancing mobile platform prepared as part of engineering work. The purpose of creating the structure was to enable the increased mobility of an adult over short distances in an urbanized environment. The whole design work was divided into several parts. In the first stage, requirements were assumed for the design of the device, electrical elements chosen, and a diagram of their electrical connections is presented. In the second part, the created CAD model of the structure is presented and some of mechanical elements described. In order to check the strength of the structure, the FEM analysis of the device body was carried out. The penultimate part was to analyze the problem of the inverted pendulum, which allowed to separate the state space model into a base subsystem and a control stick subsystem necessary to develop the control for the platform. In the last part, a stabilizing algorithm based on the LQR regulator was prepared and the use of sensory fusion in the form of a Kalman filter was focused on in order to increase the accuracy of determining the angle of deflection of the structure. Finally, simulations were prepared in the Simulink environment in order to check the correctness of the prepared algorithm. The whole was crowned with a summary of the work and setting directions for further research.
W artykule przedstawiono wyniki prac nad projektem dwukołowej samobalansującej platformy mobilnej przygotowanym w ramach pracy inżynierskiej. Celem stworzenia konstrukcji było umożliwienie zwiększania mobilności osoby dorosłej na niewielkich odległościach w zurbanizowanym środowisku. Całość prac projektowych podzielono na kilka części. W pierwszym etapie przedstawiono wymagania założone dla projektu urządzenia, dobrano elementy elektryczne oraz schemat ich połączeń elektrycznych. W drugiej części omówiono stworzony model CAD konstrukcji oraz jego elementy mechaniczne. W celu sprawdzenia wytrzymałości konstrukcji dokonano analizy MES korpusu urządzenia. Przedostatnią częścią było przeanalizowanie zagadnienia odwróconego wahadła, które pozwoliło na wyprowadzenie modelu przestrzeni stanu z rozdzieleniem na podsystemy bazy i drążka sterowniczego niezbędnego do opracowania sterowania dla platformy. W ostatniej części przygotowano algorytm stabilizujący na podstawie regulatora LQR oraz rozważano zastosowanie fuzji sensorycznej w postaci filtru Kalmana w celu zwiększenia dokładności określania kąta odchylenia konstrukcji. Na koniec przygotowano symulacje w środowisku Simulink w celu sprawdzenia poprawności przygotowanego algorytmu. Całość została zwieńczona podsumowaniem prac oraz wytyczeniem kierunków dalszych badań.
Źródło:: Mining – Informatics, Automation and Electrical Engineering; 2022, 60, 2; 17--34
2450-7326
2449-6421
Pojawia się w:: Mining – Informatics, Automation and Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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