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Wyszukujesz frazę "experimental vehicle" wg kryterium: Temat


Wyświetlanie 1-6 z 6
Tytuł:
Experimental research on identifying data for modelling special purpose vehicles
Autorzy:
Rybak, P.
Wysocki, J.
Hryciów, Z.
Michałowski, B.
Wiśniewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/245056.pdf
Data publikacji:
2017
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
special purpose vehicle
combat vehicle
loads
experimental research
modelling
Opis:
The work presents selected results of experimental research on special purpose vehicles used on military training grounds, and bench tests of their main structural elements. The results are connected mainly with identifying the main vibration parameters of those vehicles (regarding weight, resilience and damping), and with the assessment of the level of dynamic loads. The more output data experimental research provides, the more input data we have for designing models. Determined in laboratory tests, weight parameters (regarding weight and moments of inertia), coefficients of stiffness and damping, as well as selected resilience and damping characteristics, are applied in the process of creating the numerical models of assemblies, systems, and complete vehicles. The numerical models created are subject to full verification in order to minimize the differences between the real objects and their representations. The models are applied in multivariate simulation tests of the existing design solutions, upgrading them, or creating new designs. Due to a certain sensitivity of the range of special purpose vehicles, the results of experimental tests and simulation analyses presented in the work are mainly qualitative rather than quantitative.
Źródło:
Journal of KONES; 2017, 24, 3; 245-252
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Action of force in steering mechanisms of vehicles in an experimental laboratory establishment
Autorzy:
Brabec, P.
Maly, M.
Voženilek, R.
Powiązania:
https://bibliotekanauki.pl/articles/242204.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
steer by wire
experimental laboratory establishment
vehicle axle
Opis:
The safe and stable control ofa vehicle undoubtedly belongs to one of the most important requirements that relate to the vehicle 's design and operation. Consequently, in the near future, so called steer-by-wire systems could become the next stage in the control system development. A number of new, modern vehicles presented by car makers at important car shows definitely show how topical the issue is. If we want to create a design for this steering system, we have to know the action offorce very well. An experimental laboratory establishment for measuring and optimizing the steering system of vehicles was developed in our centre. The testing equipment is made of aluminium sections enabling the equipment to be quickly adapted to various vehicles ' axles and tyres. An exchangeable mat located under a tyre enables the system to create behaviour simulation for various surfaces with a different coefficient of adhesion. A sliding way assisted by a hydraulic jack under a tyre allows a change in axle load for example in accordance with the vehicle 's occupancy. A force sensor will be positioned between the jack and the mat to monitor the load adjustment. The testing stand design enables us to determine responses and behaviour of the system including tyres.The safe and stable control ofa vehicle undoubtedly belongs to one of the most important requirements that relate to the vehicle 's design and operation. Consequently, in the near future, so called steer-by-wire systems could become the next stage in the control system development. A number of new, modern vehicles presented by car makers at important car shows definitely show how topical the issue is. If we want to create a design for this steering system, we have to know the action offorce very well. An experimental laboratory establishment for measuring and optimizing the steering system of vehicles was developed in our centre. The testing equipment is made of aluminium sections enabling the equipment to be quickly adapted to various vehicles ' axles and tyres. An exchangeable mat located under a tyre enables the system to create behaviour simulation for various surfaces with a different coefficient of adhesion. A sliding way assisted by a hydraulic jack under a tyre allows a change in axle load for example in accordance with the vehicle 's occupancy. A force sensor will be positioned between the jack and the mat to monitor the load adjustment. The testing stand design enables us to determine responses and behaviour of the system including tyres.
Źródło:
Journal of KONES; 2009, 16, 3; 55-62
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Test VDA ISO TR3888 on the testing bench for steer by wire system
Autorzy:
Voženilek, R.
Brabec, P.
Maly, M.
Powiązania:
https://bibliotekanauki.pl/articles/246243.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
steer by wire
experimental laboratory establishment
vehicle axle
Opis:
The Technical University of Liberec, Department of Vehicles and Engines, has developed a design of a testing bench which would enable the testing of directional control systems. The objective of the newly designed equipment is to incorporate a real tyre as well as aflexible mounting of the axle components into the tested system. Future of car s will be connected with systems of type steer by wire. This system need to be testing on the testing bench before real test in the car. One method for assessing can be investigation control deviation during test VDA ISO TR3888. The paper will describe measurement of the real car with conventional directional control during test VDA ISO TR3888 and simulation of the system steer by wire on the testing bench. The experimental steer by wire system forms hydraulic circuit with two double-acting hydraulic cylinders with a unilateral piston rod and two proportional valves Parker D1FP. Every wheel front of axle is control alone. The PID regulators were usedfor control of the positioning action. In particular, the testing bench for the testing of steering at zero angular speed of wheels, VDA ISO TR 3888 tests on the testing bench are presented in the paper.
Źródło:
Journal of KONES; 2010, 17, 4; 561-565
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The research on dynamic loads and traction properties of military vehicles in the aspect of improvement of their structures
Autorzy:
Borkowski, W.
Rybak, P.
Hryciów, Z.
Wysocki, J.
Michałowski, B.
Wiśniewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/247931.pdf
Data publikacji:
2015
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
military vehicle
dynamic loads
traction
model tests
experimental tests
Opis:
Since the beginning of the 90’s, a scientific team in the Motor Vehicle and Transport Institute of the Mechanical Department in the Military University of Technology, has been involved in the model and experimental tests of the existing structures of the military vehicles (tanks, combat infantry vehicles and wheeled armoured carriers) in the aspect of their modernization. A part of works is related to the military vehicles included in the army’s equipment and the other parts are related to newly designed vehicles. In both cases issues related to the behaviour of selected assemblies and the whole vehicle, structure during threats posed by the reality of contemporary battlefield or armed symmetric or asymmetric conflicts are analysed. Selected effects of the tests and analyses will be presented mostly within the qualitative scope due to the data sensitivity. Contemporary design of military vehicles requires involvement of various research methods and specialized calculation software. The results obtained during performed various experimental tests make a valuable basis for verification of numerical models used in design process and multi-option simulation calculations.
Źródło:
Journal of KONES; 2015, 22, 1; 37-46
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analysis of an explosive shock wave impact onto military vehicles of contemporary warfare
Autorzy:
Saska, P.
Krzystała, E.
Mężyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/244453.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
shock wave
military vehicle
landmine and IED protection
experimental researches
Opis:
Landmines and improvised explosive devices (IED) are the basic weapon used by the rebels against the Coalition forces in Afghanistan and Iraq. It is estimated that about 50% of the casualties (wounded and killed) among the soldiers from the US and other countries participating in both conflicts are caused by explosive charge. Introduction of vehicles providing proper protection of the crew against an explosive shock wave generated by a detonation of mines and improvised explosive devices into the arsenal has become one of the priorities of modernization of armed forceps. The parameters critical to the emerging of a hazard for the surrounding includes the overpressure impulse and the shock wave overpressure. The problem of defining the parameters of an explosive shock wave generated after detonation of charges of various mass, shape and physical-chemical properties is a subject of studies at much scientific institution. The gained quantitative data are not, however, published in public reports, thus a need of performing one’s own experimental and numeric research arise. The goal of these studies is to find solutions increasing soldier’s safety at the battlefield. The paper presents an analysis of impact of a shock wave onto structures of military vehicle. Furthermore, methods of experimental definition of explosion shock wave parameters were presented and conclusions for the needs of further experimental-numerical studies were formulated.
Źródło:
Journal of KONES; 2011, 18, 1; 515-524
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of dynamic load on military vehicles construction
Wpływ obciążeń dynamicznych na budowę pojazdów wojskowych
Autorzy:
Simiński, P.
Stryjek, P.
Powiązania:
https://bibliotekanauki.pl/articles/241969.pdf
Data publikacji:
2007
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
obciążania dynamiczne
obciążania udarowe
badania eksperymentalne
pojazd
dynamic load
impact load
experimental researches
vehicle
Opis:
W artykule przedstawiono wpływ obciążeń udarowych i dynamicznych na konstrukcje pojazdów. Autorzy skoncentrowali się w głównej mierze na pojazdach terenowych i wojskowych, ponieważ warunki w jakich są eksploatowane powodują, że są one najczęściej narażone na obciążenia udarowe. W artykule pokazano przykłady wpływu obciążeń dynamicznych pochodzących od nierówności drogi na konstrukcje pojazdu. Ponadto zwrócono również uwagę na inne możliwe źródła obciążeń dynamicznych występujące w procesie eksploatacji. Przedstawiono także praktyczne uszkodzenia, które powstały na skutek wspomnianych obciążeń od innych źródeł. Uszkodzenia te wynikają zarówno z przekroczenia doraźnej wytrzymałości konstrukcji, jak i często z przyjęcia przez konstruktorów, już na etapie projektowania, błędnych rozwiązań. W kolejnej części zwrócono uwagę na rozwiązania konstrukcyjne oraz sposoby zapobiegania uszkodzeniom, mające na celu zabezpieczyć konstrukcje pojazdu i pasażerów, przed negatywnym skutkiem obciążeń udarowych. Niniejszy artykuł ma na celu przekazanie praktycznych uwag na temat wpływu obciążeń dynamicznych na konstrukcje pojazdów. Wszystkie z przykładów wpływu obciążeń dynamicznych na konstrukcje pojazdów, przedstawionych w artykule, pochodzą z praktyki badawczej i często dotyczą one pojazdów specjalnych lub konstrukcji prototypowych. Pojazdy wojskowe powinny być zabezpieczone przed wszelkiego rodzaju obciążeniami udarowymi, które mogą wystąpić podczas eksploatacji, a w wypadku przekroczenia wytrzymałości poszczególnych elementów, pojazd powinien być możliwy do naprawienia siłami wojskowych jednostek remontowych, nawet w warunkach poligonowych.
The article presents influence of dynamic load on construction military vehicles. The authors concentrated their attention on off road and military vehicles, because they operated in hard condition and are endanger to load impact. The article presents examples of influence the dynamic load on bump's road. Additionally, authors take note of another sources dynamics load during operation. Showed also practise damages as a result of dynamics load from different sources. These damages are result from over durability and engineer mistakes in construction procedure. In next part of articles the authors take note of construction solutions and ways prevent to damages. These solutions have been protecting crew to negative result of dynamics load and impact load. The article additionally takes note of practise experience from vehicle operation. All examples to coming from testing practise and often concern to prototypes and special vehicles. Military vehicles should be safe against all manner of impact loads which can appear during working, and in the case of excess strength particular elements, the vehicle should be retrievable the vehicle should be been by retrievable by military repair troops, even in range conditions.
Źródło:
Journal of KONES; 2007, 14, 1; 343-348
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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