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Wyszukujesz frazę "military vehicles" wg kryterium: Wszystkie pola


Tytuł:
Firefighting systems in military vehicles
Autorzy:
Sosnowicz, R.
Powiązania:
https://bibliotekanauki.pl/articles/247605.pdf
Data publikacji:
2015
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
firefighting system
military vehicle
optical and thermal sensors
steering devices
firefighting equipment
Opis:
The article discusses the examples of fire causes in the military vehicles and the consequences they may cause in the military vehicles. It has been observed that the frequent cause for the damage of military vehicles and loss of crew health and life is not the direct impact with the missile, but fires caused e.g. by impact with a missile, mines and firing bottles actions. Therefore, there is the need to use firefighting systems in the military vehicles. The development of the firefighting systems earmarked for the military vehicles has been presented. The contemporary construction solutions for the firefighting system earmarked for the motor and combat departments, as well as selected external parts of the military vehicles as well as basic conditions influencing the firefighting systems of various purposed have been discussed. The advantages and disadvantages of halons used previously as basic extinguishing means, current legal restriction concerning the halon use as well as potential halon equivalents to extinguish fires in the military vehicles have been discussed. The new extinguishing equipment, the means of which will not have negative impact on the crew, vehicle and natural environment – in particular in terms of destroying ozone layer and causing greenhouse effect will require checking the correctness of their functioning, the extinguishing effectiveness and the impact on the natural environment. The testing of the firefighting systems for military vehicles has been already conduced in the Military Institute of Armoured and Automotive Technology in Sulejówek.
Źródło:
Journal of KONES; 2015, 22, 1; 289-298
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sustained Operations in Confined-Space Military Vehicles
Autorzy:
Delleman, N. J.
Colaciuri, V.
Wiederkehr, E.
Valk, P. J. L.
Powiązania:
https://bibliotekanauki.pl/articles/90042.pdf
Data publikacji:
2008
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
fitness
performance
active breaks
Opis:
This paper reports 2 baseline studies and 1 experiment performed in a confined-space military vehicle concerning the effects on fitness and performance of time in a sitting posture and workstation characteristics. On average physical fitness decreased by slightly more than 10% per hour, the observation performance decreased by ~30% per hour, and the technical performance (of gunners) showed a relatively small decrease, i.e., less than 5% per hour. So-called active breaks (changing sitting into standing and walking) led to a significant reduction in the decrease of physical fitness, almost reducing it to zero. Furthermore, the level of confinement was shown to affect physical fitness.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2008, 14, 3; 313-325
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Feasibility study of military vehicles in short mode
Autorzy:
Simiński, P.
Powiązania:
https://bibliotekanauki.pl/articles/246656.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
road safety
simulation
military vehicles
Opis:
The paper presents the methodology prepared by the author. During the process of acquiring new vehicles for the armed forces, time is of the essence in practice of conducting a wide range of structure changes in previously implemented undercarriages. It has to be pointed out that with a high individuality and the very nature of the units, difficulties in scope of comprehensive testing with regard to matters of transport safety. What is more, two determinants are essential in the process of acquiring equipment - time and cost. The process does not allow for improvement and perfecting of the structure, and the research in scope of wheel vehicle movement safety may be limited. The procedure of implementation and verification of equipment stresses the structure optimization as early as on the designing and prototype preparation stages. The procedure of acquiring new wheel vehicles for the military is one of the main premises for preparing the methodology with use of simulation research. Conducting research on the basis of the prepared methodology allows for avoiding possible traffic risks. The methodology enables an effective support for the current process of wheel vehicle acquisition for the armed forces. In this work the research procedure consisting of the necessary range of prepared, experimentally verified models, accepted by the methodology, have been verified. In order to do that two simulation models have been built, both of various levels of complexity.
Źródło:
Journal of KONES; 2012, 19, 2; 501-506
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reliability tests in the operation of military vehicles
Autorzy:
Przybysz, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/1537404.pdf
Data publikacji:
2021
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
reliability
operation
military vehicles
niezawodność
operacja
pojazd wojskowy
Opis:
Reliability studies in the operation of military vehicles are not carried out extensively. This is due to the guidelines of superiors regarding the keeping of operational records in military units. As a result, this work attempts to determine the reliability of military vehicles. This work includes reliability tests of military vehicles operated in military units in the second phase of operation, i.e. in the operation interval, where the extent of change in the intensity of damage is the least in the function of mileage. The study used a sample of 37 vehicles for which all operational events relevant to reliability determination were recorded during a two-year observation period. Using recorded operational data, an empirical reliability function of the vehicles included in the test sample was determined. Based on reliability tests of the reliability function as a function of mileage to damage, they show that second-phase vehicles used in military units have a logarithmic distribution of reliability as a function of mileage.
Źródło:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych; 2021, 2; 7-11
2450-1859
2450-8721
Pojawia się w:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Device supporting military vehicles buoyancy and ballistic resistance
Autorzy:
Derewońko, A.
Sławiński, G.
Niezgoda, T.
Powiązania:
https://bibliotekanauki.pl/articles/244644.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
FEM
ballistic protection
buoyancy
military vehicles
panels
elasto-plastic
Opis:
A deep modernization of equipment due to its assembling to the modern requirements of a battlefield and getting full compatibility to NATO structures caused that some military vehicles equipment with additional staff lose their buoyancy or are at the edge of losing it. The solution to this problem can be setting an additional device which helps to increase mass that allows to keep buoyancy of a military vehicle. The panels are fixed as the outer elements of the container which is simultaneously used for storing the elastic air cushions. Before the water crossing, the air cushions are filled with gas and additional buoyancy force is generated. The paper presents a structure and usage of a multipurpose ballistic protection which, in the passive state, is an additional armour and in the unfolded state increases buoyancy lost in the case of setting additional devices or armament. In the paper, initial simulations developed with the use of Ls-Dyna software are described. The influence of modules number of the air cushion on the buoyancy of the multi-purpose ballistic protection is considered. The advantage of the solution is possibility of the chamber volume change which causes the increase of device volume of the whole module of the chambers is dependent on the vehicle buoyancy which results from its current weight.
Źródło:
Journal of KONES; 2011, 18, 1; 129-134
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The quantification method of functional availability military vehicles
Autorzy:
Przybysz, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/1537426.pdf
Data publikacji:
2020
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
functional availability
safety
reliability
semi-Markov models
dostępność funkcjonalna
bezpieczeństwo
niezawodność
model semi-Markowa
Opis:
The availability is one of the most important feature of a technical object which shapes its operational quality. The paper undertakes the issue related to the quantification of functional availability of vehicles, with reference to reliability aspects. The conducted exploitation research paved the way for elaborating methods of determining functional availability for vehicles, in particular focusing on reliability. The essential research was conducted using the developed mathematical model based on the probabilistic, stochastic Markov process, which allowed modelling the process of changes in the exploitation states of vehicles. In view of the above, it is essential to develop methods that enable the most accurate estimation of the functional availability of vehicles. Knowing the values of functional availability, we can estimate the probability of performing assigned tasks and precisely control the vehicle exploitation system, especially in terms of availability, which is important for vehicles. This work presents a method for determining the functional availability of vehicles, taking into account the limitations introduced by the vehicle exploitation system. Particular attention was paid to the possibility of using probabilistic, stochastic semiMarkov models, whose rules and method of creation were generally described, with regard to the ability to acquire operational data in the vehicle exploitation system.
Źródło:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych; 2020, 4; 1-11
2450-1859
2450-8721
Pojawia się w:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dependability for the military vehicles in the safety aspects
Autorzy:
Przybysz, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/110985.pdf
Data publikacji:
2020
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
military vehicle
availability
reliability
Opis:
The article discusses the essence of dependability for the military vehicles, the knowledge of which ensures success in the mission and provides an appropriate level of the crew safety while executing combat tasks. The paper also includes an analysis of factors affecting the dependability for the military vehicles.
Źródło:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych; 2020, 1; 1-8
2450-1859
2450-8721
Pojawia się w:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The analysis of conditions for testing mileage of military vehicles
Autorzy:
Luty, W.
Mieten, M.
Powiązania:
https://bibliotekanauki.pl/articles/30147053.pdf
Data publikacji:
2018
Wydawca:
Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Tematy:
mileage tests
special purpose vehicles
dynamic loads
Opis:
The study discusses the issue of determining the conditions for testing the mileage of a vehicle. Lifetime tests are the crucial element of qualification tests. This type of research verifies the resistance of vehicles and elements of their on-board equipment to vibrations and shocks resulting from the interaction of uneven surface during the movement. Certain test conditions can be straightforwardly determined and verified e.g. weather conditions or a type of the road/surface. The problem appears when the tests are to be conducted in field conditions (off-road). At the set driving speed, the level and frequency structure of dynamic loads of elements of a vehicle drive system depend mainly on a surface profile and its viscoelastic conditions. Either the profile or the characteristics of ground foundations change over the time depending on various factors. The paper attempts to assess the interaction of a ground surface of selected field roads on a vehicle. The result of direct measurement of the vertical acceleration captured on a drive axle and on a vehicle’s frame above the axle was addressed. The measurement results were analyzed within the context of possible planning of vehicle test requirements with the application of the method of testing mileage under the field conditions.
Źródło:
Scientific Journal of the Military University of Land Forces; 2018, 50, 3(189); 181-191
2544-7122
2545-0719
Pojawia się w:
Scientific Journal of the Military University of Land Forces
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The analysis of conditions for testing mileage of military vehicles
Autorzy:
Luty, Witold.
Powiązania:
Scientific Journal of the Military University of Land Forces 2018, nr 3, s. 181-191
Współwytwórcy:
Mieteń, Marcin. Autor
Data publikacji:
2018
Tematy:
Pojazdy wojskowe
Diagnostyka techniczna
Obsługa i eksploatacja
Artykuł z czasopisma naukowego
Artykuł z czasopisma wojskowego
Opis:
Bibliografia, netografia na stronach 190-191.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
Functional availability studies of military vehicles in terms of operation intensity
Autorzy:
Przybysz, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/1537510.pdf
Data publikacji:
2020
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
functional availability
reliability
operation intensity
military vehicles
funkcjonalna dostępność
niezawodność
intensywność operacji
pojazdy wojskowe
Opis:
Keeping vehicles technically suitable is strictly dependent on the intensity and nature of the damage. Determining the factors influencing functional availability comes down to investigating the causes of vehicle damage. Studies and analysis of the results have confirmed that functional availability for military vehicles can be estimated, taking into account vehicle intensity and reliability. The intensity of use may be taken into account by appropriate selection of layer tests, classified by intensity of use and by observing changes in functional availability with an increase in the number of trips, reflecting the intensity of use. Studies have found that the intensity of use in the range of average intensity of use of military vehicles does not significantly differentiate the level of availability.
Źródło:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych; 2021, 1; 48-54
2450-1859
2450-8721
Pojawia się w:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical and experimental research on the dynamic loads in military vehicles
Autorzy:
Rybak, P.
Borkowski, W.
Wysocki, J.
Powiązania:
https://bibliotekanauki.pl/articles/949498.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
military vehicle
armoured vehicle
load
research
modelling
experiment
Opis:
The work presents the fragments of research on the dynamic loads acting on selected military vehicles. Designing new armoured vehicles or introducing modifications is preceded by model tests carried out under various conditions, analysing the effect of dynamic loads which may result during the use of the vehicle, e.g. due to the roughness of the road, firing, IED explosions or the vehicle being hit by a shell. The main purpose of conducting model research and verifying their findings in experimental research is to improve the effectiveness and safety of operation of systems and installations of military vehicles, increase the dynamics of the movement, improve the protection and ensure that the crew is not killed. Among the used models of military vehicles, discrete models are applied, formulated in the adjusted Lagrange description, as well as the models based on the fine element method for highly nonlinear problems and forces acting for a very short time. Due to the unique selection of military equipment, the methods of calculation and analysis of model research (simulations) and experimental research presented in the work are considered qualitative rather than quantitative.
Źródło:
Journal of KONES; 2016, 23, 4; 435-441
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the military vehicles operating process by means of Markov processes
Autorzy:
Żurek, J.
Borucka, A.
Ziółkowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/245001.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
operation
Markov processes
military vehicles
Military Economic Units
Opis:
The article presents the method of analysing the operating process of Star military vehicles in their readiness aspect. The subject of research was the Military Economic Unit, recently created in the Polish Army. Markov processes were applied. A simple 5-state model was built, and the research was made in a discrete, as well as continuous time. The limit probabilities, both for the chain and the time, were estimated. Thanks to Chapman-Kołomogorov-Smoluchowski equations, the long-term projections could be estimated. To ensure of operating processes, correctly object’s permissible transitions from the previous state to the next one were chosen. It was defined based on technical documentation and owned operational knowledge on the considered operating process. The mathematical description of a set of permissible transitions includes a matrix of permissible Si → Sj transitions from the previous state Si (lines) to the next one. The five-state system has possible and forbidden transitions are presented. Graph of permissible transitions for the five-state operation model usage, standby, maintenance, repair, standstill in repair; correlogram for the average duration of the state; evolution of the probability of the Star cars’ staying in the state of usage, standby, maintenance, repair, standstill in repair are presented in the article.
Źródło:
Journal of KONES; 2016, 23, 2; 443-453
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of technical requirements related to new military vehicles in the scope of transportability
Autorzy:
Grzesiak, J.
Kończak, J.
Mieteń, M.
Powiązania:
https://bibliotekanauki.pl/articles/347372.pdf
Data publikacji:
2017
Wydawca:
Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Tematy:
vehicles
technical requirements
transportability
Opis:
In the present paper, the authors have analyzed the technical requirements for military vehicles acquired by way of purchase or research and development works on road, air and rail transportability. The issue of defining technical requirements has been addressed, since they are crucial elements of qualification tests. Transportability requirements verify a vehicle’s suitability for various types of transport, its adaptation to loading and the strength of its brackets. The authors have reviewed the normative documents on the transportability of military vehicles, based on which the analysis was carried out in the context of current technical requirements. The article also deals with issues related to vehicle’s transportability examinations. This type of testing is carried out at the Armored Combat Vehicle Laboratory at the Military Institute of Armored and Automotive Technology in Sulejówek. The authors have also discussed the possibilities of the application of reverse engineering in transportability examinations.
Źródło:
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki; 2017, 3; 90-105
1731-8157
Pojawia się w:
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki
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:
Analysis of Technical Requirements Related to New Military Vehicles in the Scope of Transportability
Autorzy:
Grzesiak, Jerzy.
Powiązania:
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki 2017, nr 3, s. 90-105
Współwytwórcy:
Kończak, Jarosław. Autor
Mieteń, Marcin. Autor
Data publikacji:
2017
Tematy:
Transport wojskowy
Pojazdy wojskowe
Obsługa i eksploatacja
Budowa i konstrukcje
Dane taktyczno-techniczne sprzętu wojskowego
Artykuł z czasopisma wojskowego
Artykuł z czasopisma naukowego
Opis:
Bibliografia, wykaz aktów prawnych na stronach 104-105.
Dostawca treści:
Bibliografia CBW
Artykuł

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