Wszystkie pola: J.T. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The lubricity and sorptive experimental comparatively investigations of engine oils
Experymentalne badania porównawcze smarności i sorpcji olejów silnikowych metodami pośrednimi
Autorzy:: Kałdoński, T. J.
Kałdoński, T.
Powiązania:: https://bibliotekanauki.pl/articles/242866.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
projektowanie samolotów
modelowanie
optymalizacja
combustion engine
tribology
lubricity
sorption
engine oils
Opis:: In the paper are presented the results of experimental investigations of lubricity and sorptive properties of selected engine oils. The lubricity properties of oils were tested according to standard method ASTM D2596-69, ASTM D2270-77, and PN-76/C-04147(Polish Standard) on the Four-Ball Test Machine. Sorptive properties of oils were evaluated indirect method, i.e. By means of differential scanning calorimeter DSC141. Two research aims has been realized in this paper. The first aim depended on check the usability of differential scanning calorimetry for indirect assessment of sorptive properties (adsorption) of oils on true material of tribological joint of Four-Ball Test Machines, which was used the next for assessment of lubricity properties of the oils. The second aim depended on conformation of interdependence: have better sorptive properties of oils - have better its lubricating ability. In effect it is showed the thermal measurements for oil-metal system, with the aid of differential scanning calorimeter DSC141, on Four-Ball Test Machines. The worse were lubricity properties of oil (smaller quantity of lubricity additive) the weaker was interaction in metal-oil system and this stand for worse sorptive effects.
W pracy przedstawiono rezultaty eksperymentalnych, porównawczych badań właściwości smarnościowych i właściwości sorpcyjnych wybranych olejów silnikowych. Właściwości smarnościowe olejów oceniano znormalizowaną metodą według PN-76/C-04147 oraz ASTM D2596-69 i ASTM D2270-77 na aparacie czterokulowym. Właściwości sorpcyjne olejów oceniono metodą pośrednią, tzn. Za pomocą różnicowego kalorymetru skaningowego DSC141. Zostały zrealizowane dwa cele tej pracy. Pierwszy cel polegał na sprawdzeniu przydatności różnicowej kalorymetrii skaningowej do oceny właściwości sorpcyjnych olejów silnikowych. Drugi polegał na potwierdzeniu zależności: lepsze właściwości sorpcyjne oleju - lepsza jego smarność. W efekcie sorpcja jest przedstawiana dla pomiarów olej - metal za pomocą różnicowego kalorymetru scanningowego i na aparacie 4 - kulowym. Gorsze były właściwości smarnościowe oleju (mniejsza ilość dodatków smarnościowych), słabsza była reakcja metal-olej i to oznacza gorsze właściwości sorpcyjne.
Źródło:: Journal of KONES; 2007, 14, 3; 261-270
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Modelling influence of temperature for assessment of wear elements of frictional joints
Modelowanie wpływu temperatury na ocenę zużycia elementów skojarzeń ciernych
Autorzy:: Pakowski, C.
Kałdoński, T. J.
Kałdoński, T.
Powiązania:: https://bibliotekanauki.pl/articles/243040.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: tarcie suche
rozszerzalność cieplna
zużycie tarciowe
dry friction
thermal expansion
abrasive wear
Opis:: In the article is presented continuous method for measurement of wear in conditions of technically dry friction of tribological cinematic pairs type pin-on-disk of T-11 tester, for example. Also is discussed modification of measurement system tester, which it makes possibility synchronization measurement respecting angle position of counter-sample. For six selected joints is appointed a correction for thermal expansion in dependence on temperature offrictional pair as well on speed of temperature change. For continuous of recorder temperature and displacement are carried out research wear for typical materials as well as is measured total wear after finish test. The analysis of obtained results shows existence of correlation between total linear experimental wear and analytical value of total linear wear takes into consideration correlations for thermal expansion. However, during friction there is not correlation between recorded change of dimensions joint and total wear. It shows correction this model. Results calculations of linear wear are overstate in relation to obtained value of wear in direct measurements. It doesn't lower possibility using established method for interpretation results of research wear
W artykule przedstawiono metodę ciągłego pomiaru zużycia w warunkach tarcia technicznie suchego węzła tribologicznego typu trzpień-tarcza przy zastosowaniu testera T-11. Omówiono modyfikację układu pomiarowego testera umożliwiającą synchronizację pomiaru z położeniem kątowym przeciwpróbki. Dla sześciu wybranych skojarzeń wyznaczono poprawkę na rozszerzalność termiczną w zależności od temperatury węzła tarcia oraz od szybkości zmian tej temperatury. Wykonano badania zużycia wytypowanych materiałów, przy ciągłej rejestracji temperatury i przemieszczenia oraz zmierzono zużycie całkowite po zakończeniu testu. Analiza uzyskanych wyników wskazuje na istnienie korelacji między sumarycznym zużyciem liniowym skojarzenia wyznaczonym eksperymentalnie a obliczoną wartością zużycia liniowego, przy uwzględnieniu poprawki na rozszerzalność termiczną. Brak jest natomiast korelacji między rejestrowaną podczas tarcia zmianą wymiarów skojarzenia a zużyciem całkowitym. Dowodzi to prawidłowości przyjętego modelu, konieczne jest jednak poprawienie jego dokładności. Wyniki obliczeń zużycia liniowego są zawyżone w stosunku do wartości zużycia uzyskanych w pomiarach bezpośrednich. Nie obniża to jednak możliwości stosowania przyjętej metody do interpretacji wyników badania zużycia.
Źródło:: Journal of KONES; 2007, 14, 2; 347-353
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The energetic - superficial and lubricity properties of petroleum products and ionic liquids
Autorzy:: Kałdoński, T. J.
Kałdoński, T.
Pakowski, C.
Powiązania:: https://bibliotekanauki.pl/articles/244139.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: boundary layer
lubricity
ionic liquids
surface tension
contact angle
Opis:: This paper presents the results of comparative investigations on the lubricity and energetic superficial properties of selected petroleum products and new ionic liquids (ILs). Three base oils from polish petroleum refinery (PAO—6, SN-650, SN—350) and lubricity additive (Additin RC2515 EP) have been investigated comparatively to four ionic liquids with imidazolium organic cations and different inorganic anions, i. e. bis (trifluoromethylsulfonyl) imide and tetrafluoroborate. The lubricating ability properties petroleum products and ionic liquids have been assessed according to Polish Standard PN-76/C-04 1 47 (ASTMD2596-69 and ASTM D2270-77) on Four-Ball Testing machine. The investigation range of lubricity properties are limited to the assessment only two parameters i. e. P(t) - seizure load for increasing continuous loading and G(oz) - wear limiting load capacity. The superficial properties of oil compounds and ionic liquids have been assessed by means of modern KSV Sigma 701 Tensiometer. Surface tension o and wetting angle fi were assessed. The obtained results confirmed the possibilities of using tested ionic liquids as lubricants. The best lubricity properties, close to properties of Additin RC2515, had 1—methyl— 3—oktyloxymethylimidazolium tetrafluoroborate.
Źródło:: Journal of KONES; 2009, 16, 1; 239-244
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Identifying of thermotropic liquid crystal phase and its influence on lubricity of ionic liquids
Autorzy:: Kałdoński, T. J.
Piecek, W.
Kałdoński, T.
Pawlak, Z.
Powiązania:: https://bibliotekanauki.pl/articles/244373.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: mesophase identification
liquid crystals
ionic liquids
Opis:: In this article there is discussed a possibility of forming the liquid crystal structure in ionic liquids and its influence on performance characteristics, especially tribological, of these liquids. Formation of such thermal phase might influence on, among other things, easier creation of the boundary lubricating film, which is characterized by high viscous anisotropy. The results of tribological tests showed better lubricity of selected ionic liquids than modern PFPE oils. Identification of mesophase in ionic liquids was necessary. This method is described in the paper. Biolar PL polarizing interference microscope with thermal stabilizing table, with birefraction system, and Brüker Discover 8 powder diffraction instrument with a Cu lamp and monochromator were used. There was being searched the state characterized simultaneously by optical anisotropy properties and liquid state of aggregation. For identification of phase transition temperature, the additional calorimetric tests were carried out during the cycle of heating and cooling. These researches were carried out within the framework of the development and research project no. PBR 15-249/2007/WAT-OR0002904, financed by Ministry of Science and Higher Education during 2007-2011.
Źródło:: Journal of KONES; 2015, 22, 1; 143-156
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Ecotoxicity of ionic liquids as lubricants
Autorzy:: Kałdoński, T. J.
Kałdoński, T.
Załęska-Radziwiłł, M.
Pawlak, Z.
Powiązania:: https://bibliotekanauki.pl/articles/244323.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: ionic liquids
ecotoxicity tests
Daphnia Magna
Opis:: In this article there is discussed the influence of ionic liquids on natural environment on the basis of detailed analysis of the literature information and the results of the Authors' researches carried out within the framework of the development and research project no. PBR/15-249/2007/WAT-OR00002904 financed by Ministry of Science and Higher Education during 2007-2011. The literature information about toxic features of ionic liquids is very skimpy, but the detailed analysis of it and the results of our own researches allow us to say that not all ionic liquids should be treated as fully environmentally friendly substances. Among these substances, there are non-toxic and moderately toxic but there are very toxic liquids, too. Therefore, uncritical rating all ionic liquids among Green Chemistry is inappropriate. The test results of ionic liquids ecotoxicity were compared with the results obtained for standard oils used at lubrication technologies, particularly at motorization. All reference oils, according to EU classification, were non-toxic. The tests were carried out in accordance with OECD 202 European normative document, which recommends carrying out the tests for Daphnia Magna crustaceans. There were carried out: acute immobilization tests to Daphnia Magna, calculation of the effective concentrations EC50-t and evaluation of ionic and reference liquids toxicity with regard to used bioindicators
Źródło:: Journal of KONES; 2015, 22, 1; 135-142
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Investigations on lubricity and surface properties of selected perfluoropolyether oils
Autorzy:: Kałdoński, T. J.
Gryglewicz, Ł.
Stańczyk, M.
Kałdoński, T.
Powiązania:: https://bibliotekanauki.pl/articles/244618.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: tribology
perfluoropolyethers (PFPE)
surface tension
contact angle lubrication
Opis:: In the paper the investigative results of lubricity and surface properties for four synthetic perfluoropolyether (PFPE) oils, comparing with the high quality gear oil Mobilube 1SHC 75W-90 and two base oils PAO-6 and SN-650, are discussed. The goal of the research was to identify anti-wear and anti-seizing properties of PFPE oils correlation with their surface-energetic and viscosity-temperature properties. Modern test equipment was used for perfomed research. The following apparatuses were used: KSV Sigma 701 and KSV CAM 100 made in Finland, AMVn Anton Paar made in Austria, and T-02 four-ball apparatus made in Poland. Measurement of density, surface tension and wetting angle were done with the use of KSV Sigma 701 apparatus, according to its instruction manual. The static wetting angle on the real surface of a steel plate was determined with the use of KSV CAM 100 apparatus. The dynamic viscosity of the tested compounds was determined with the use of AMVn microviscometer. The tests of the lubricity properties of the synthetic oils and comparative liquids were perfomed with the use T-02 four-ball tester. The investigative results showed that PFPE oils can be used particularly in hydrodynamic and elastohydrodynamic lubrication.
Źródło:: Journal of KONES; 2011, 18, 1; 199-212
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Initial studies on lubricity and surface properties of selected ionic liquids
Autorzy:: Kałdoński, T. J.
Stańczyk, M.
Gryglewicz, Ł.
Kałdoński, T.
Powiązania:: https://bibliotekanauki.pl/articles/244598.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: tribology
ionic liquids
surface tension
contact angle
lubrication
Opis:: The paper discusses the results of the studies on the surface properties and lubricating abilities of five ionic liquids compared to a high quality gear oil: Mobilube 1SHC 75W90 and two base oils: PAO-6 and SN-650. The investigated ionic liquids were: 1) tetrafluoroborate 1- benzyl-3-methylmidazolium, 2) bis (trifluoromethylsulfonyl) imide 3-methyl-1- propylpyridinium, 3) bis (trifluoromethylsulfonyl) imide 1,2-dimethyl-3-propylimidazolium, 4) bis (trifluoromethylsulfonyl) imide trihexyltetradecylphosphonium), 5) tetrafluoroborate trihexyltetradecylphosphonium. The density, surface tension and wetting angle as well as dynamic and kinematic viscosity were measured. Next, the lubricity properties were evaluated using the four-ball tester. The research results showed the more better lubricity properties of ionic liquids than the base oils. The research results showed the more better lubricity properties of ionic liquids than the base oils. The ionic liquids had the comparable properties to a high quality gear oil. Obtained results of these preliminary studies confirmed a possibility of using selected ionic liquids as new lubricants. These compounds can probably replace the lubricants used so far and find a wide scope of application in lubrication technology in the future. However, particular implementations require further complex studies.
Źródło:: Journal of KONES; 2011, 18, 1; 213-226
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Sensor quality for low pressure indication - research and solutions
Autorzy:: Czerwinski, J.
Comte, P.
Hilfiker, T.
Powiązania:: https://bibliotekanauki.pl/articles/246890.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Opis:: In order to analyze the processes during the gas exchange in the engine, knowledge of pressure states in both inlet and outlet is required. This pressure measuring is known as "low pressure indication ". In the presented work, three examples of controlling the quality of low pressure measurement are presented. The projects performed during the collaboration with Kistler showed the high demands regarding accuracy, dimensions and lifetime of measuring chains and piezoresistive sensors for low pressure measurement. To gain reliable resultsfor use in simulation tools for calculating and modeling gas exchange phase the sensor and measuring chain must be designed in order to consider all possible influences on the signal such as thermal and mechanical stress, electrical parasitic induction and gas dynamic effects. The increasing demand regarding accuracy and low thermal drift for highly dynamic measurements and the restricted space available in most applications are further challenges. It was shown that: a small inaccuracy of measurement, lower than 10 mbar can be attained, the asymmetric course of the exhaust pulse can clearly be verified, and a protection screen for a sensor exposed to the exhaust blow-off pressure wave can be a tool to optimize between longlife and accuracy.
Źródło:: Journal of KONES; 2010, 17, 2; 67-80
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Numerical model of bullet - barrel system
Model numeryczny układu lufa - pocisk
Autorzy:: Łazowski, J.
Małachowski, J.
Niezgoda, T.
Powiązania:: https://bibliotekanauki.pl/articles/241651.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: lufa
pocisk
modelowanie numeryczne
barrel
bullet
numerical modelling
Opis:: Aktualnie, projektowanie uzbrojenia w dużej mierze opiera się na metodach analitycznych, które nie pozwalają na znaczną poprawę parametrów broni w zakresie odporności udarowej. Szczególnie istotna jest analiza dynamiki dla ruchu pocisku w lufie na stożku przejściowym i ustalenie optymalnych parametrów procesu. Na styku lufy i pocisku zachodzą bardzo złożone procesy termomechaniczne. Oddziaływanie to powoduje powstawanie na powierzchni styku ciał ciepła a w konsekwencji zmian właściwości mechanicznych. Dodatkowo charakter współpracy obu ciał obarczony jest często brakiem symetrii wynikającym między innymi z niedokładności wykonania elementów, nieodpowiednim osadzeniem pocisku w lufie oraz niejednorodnością materiałów. W skutek takiej złożoności zjawisk, której konsekwencją są np. zmienność współczynnika tarcia czy również drgania pocisku i lufy, ogólne analityczne wyznaczanie stanów naprężeń i stanów krytycznych w sposób ścisły jest niemożliwe. Jedyną skuteczną metodą może być w tym przypadku modelowanie numeryczne. W pracy przedstawiono próbę analizy stanu wytężenia powstającego podczas szybkozmiennych procesów w trakcie współpracy pocisku z lufą. Przedstawiono model numeryczny obiektów i zaprezentowano wyniki analizy w formie planów warstwicowych. Narzędziem zastosowanym do analizy był pakiet obliczeniowy LS-DYNA umożliwiający symulacje w zakresie nieliniowym z jawnym krokiem całkowania.
Currently the design process for armament equipment mostly employs very known and traditional analytical methods. But in many cases this kind of approach is not sufficient and effective, especially for gun parameters related with impact resistance. Very crucial for proper dynamic bullet movement in the barrel are geometric dimensions. In the contact areas between a bullet and a barrel appear some thermo-mechanical phenomena. Additionally, the cooperation process between these two components is encumbered because of the asymmetry caused by the inaccuracy of production process and the inhomogeneity of used materials. Finally, the mentioned reasons produce some unwanted effects like: bullet and barrel vibrations, problems with friction phenomena, etc. In such situations, the typical engineering approach in design process is unable to take into considerations all such local and very complex effects. Therefore, this paper presents is a trial of numerical methods application, which allow perform full analysis process of interaction between bullet and barrel. The models of these two bodies were developed using FE method. The numerical calculations were performed using LS-DYNA code. The main goal of the research was focused on contact problem. In the paper authors enclosed the initial results of the dynamic simulations.
Źródło:: Journal of KONES; 2007, 14, 1; 261-266
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Concept and development of engineer mission support robot
Autorzy:: Bartnicki, A.
Łopatka, J. M.
Muszyński, T.
Wrona, J.
Powiązania:: https://bibliotekanauki.pl/articles/246011.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: Unmanned Ground Vehicles
robot
human machine interface
Opis:: Contemporary battlefield is more and more demanding environment after all for soldiers but also for their equipment and machines that assist them. Looking at the last Lessons Learned experience we can conclude that the most dangerous threats met during last asymmetric warfare were Improvised Explosive Devices (IEDs). Therefore, the main focus is being done to equip UGVs with efficient engineering equipment that allows operating very quickly in very dangerous environment being exposed to health risks and loss of human life, within more and more sophisticated engineering support missions with special regard just to EOD/IED missions. The concept of such an engineering robot design is described in this paper. The EOD/IED mission support engineer robot, the attachments of the EOD/IED mission support engineer robot, removal of car bombs by means of the robot’s attachments, the EOD/IED mission support engineer robot’s ability to overcome terrain obstacles, the mission support engineer robot’s remote control panel are presented in the paper. Technological and Operational Problems Connected with UGV Application for Future Military Operations was held in Rzeszow, Poland on 20-22nd April 2015.
Źródło:: Journal of KONES; 2015, 22, 3; 263-268
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Fuzzy-Lyapunov based controller for a quadrocopter
Autorzy:: Kusznir, T.
Smoczek, J.
Powiązania:: https://bibliotekanauki.pl/articles/242206.pdf
Data publikacji:: 2017
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: quadrocopter
fuzzy control
Lyapunov stability
Opis:: Quadrocopters are nonlinear and inherently unstable systems. To be able to account for the nonlinearities during more aggressive manoeuvres nonlinear control methods need to be utilized to obtain the desired position while at the same time guaranteeing stability. In the article, the quadrocopter dynamics is modelled using the Newton-Euler method. The propeller aerodynamics is modelled using a combination of momentum theory and blade element theory. There are two different control objectives; the 1st objective requires the quadrocopter to reach a desired attitude set point using, while the 2nd objective requires the quadrocopter to track an attitude trajectory. In both cases, Lyapunov stability criterion, in conjunction with LaSalle’s invariance principle, is used to guarantee the system becomes asymptotically stable. In the case of reaching the desired attitude set point, a direct Lyapunov control method is implemented with the control constants determined empirically. For the trajectory tracking, limited knowledge is assumed on the system dynamics and the Mamdani fuzzy controller is used with a rule base that satisfy the Lyapunov stability criterion. The fuzzy membership functions developed empirically and a centre of gravity defuzzification method is used. All simulations are done in MATLAB/Simulink. The results of the numerical simulation are presented in the article.
Źródło:: Journal of KONES; 2017, 24, 4; 125-132
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Preventive maintenance with imperfect repairs of vehicles
Autorzy:: Okulewicz, J.
Salamonowicz, T.
Powiązania:: https://bibliotekanauki.pl/articles/246462.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
maintenance
preventive replacement
imperfect repair
statistical diagnosis
Opis:: A vehicle ability to realise transport tasks may be restored by repairing only failed elements. This is called imperfect repair as the vehicle is not as good as new after such a repair. Preventive replacement is an example of imperfect repair as well. The advantage of such maintenance is that it enables controlling a reliability level of a fleet of vehicles. Sets of vehicles elements which should be replaced in that aim are derived on a base of statistical diagnosing with use of data about elements failures. The acceptable level of a failure risk while executing transportation tasks has been taken as a criterion. An algorithm for selecting elements for preventive replacement has been developed. It was shown that a level of a fleet reliability can be controlled by changing an order of a quantile function in coordination with a number of redundant objects. A computer simulation model of the vehicle fleet was used as an example to illustrate derived dependencies. In particular algorithm for selecting elements for preventive replacement, graph of model states, graphical interpretation of calculating new quantile orders, simulation experiments results for system n out of n, simulation experiments results for d = 2,5 are presented in the paper.
Źródło:: Journal of KONES; 2007, 14, 3; 485-494
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Concept of IED/EOD Operations (CONOPs) for engineer mission support robot team
Autorzy:: Bartnicki, A.
Łopatka, J. M.
Muszyński, T.
Wrona, J.
Powiązania:: https://bibliotekanauki.pl/articles/242713.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: Concept of Operations
Unmanned Ground Vehicles
robot team
Opis:: Concept of Operations is the first tool being used in capabilities approach to define military needs being very important task in the beginning of the Life Cycle Management process. The inputs to this process are defined based on the scenarios resulting from the Lessons Learned experience. It creates the technology needs for the new military systems and simultaneously the links between militaries, scientists, designers and producers. The success of missions at the very dynamic contemporary battlefield will heavily dependent on functionality engineering forces taking part in them after all at the very low level of command. The main task of engineering forces that are realized within the convoy protection mission aims at greater soldiers’ safety. The efficiency of convoy protection demands a systemic approach and the need to build the system of remote controlled Unmanned Ground Vehicles (UGV). The design of Improvised Explosive Devices (IED), after all their initiating systems, makes Explosive Ordnance Disposal (EOD) missions practically impossible to be realized by humans. The concept of systemic approach to use the remote controlled Unmanned Ground Vehicles for convoys’ protection based on Lessons Learned experiences is presented in this paper.
Źródło:: Journal of KONES; 2015, 22, 3; 269-273
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Multifunction suspension of EOD robot
Autorzy:: Łopatka, M. J.
Muszyński, T.
Rubiec, A.
Powiązania:: https://bibliotekanauki.pl/articles/244520.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: unmanned ground vehicle
mobility
hydropneumatic suspension
simulations
Opis:: One of the applications of Unmanned Ground Vehicles (UGV) consists in conducting tasks connected to removing and disposing of Improvised Explosive Devices (IED). The tasks are often performed in hard to reach places, on off-road terrain, with weights and dimensions of explosives which require the use of work attachments of considerable lifting capacities. Due to this, it is necessary to equip the robot with suspension designed for performing such tasks. Because of variable character of the charges which are subjected to the chassis of robots, it is necessary to build a suspension with variable characteristics and examine efficiency of its action. One of the research methods that can be used for that purpose are the simulations based on the method of Multibody Systems. The paper presents a hydro-pneumatic suspension system of an EOD robot, which has been developed at the Military University of Technology, describes its model, simulation findings and the initial verification thereof based on a real object. Apart from that, special consideration is given to the quality and effectiveness of UGV suspension systems. The development of a basic platform enables the use of the platform for various purposes as a carrier of a multi-sensor system for detecting dangerous materials or for carrying other attachments.
Źródło:: Journal of KONES; 2011, 18, 1; 343-350
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Innovative run flat systems
Autorzy:: Stryjek, P.
Nikisz, T.
Omyliński, K.
Ejsmont, J.
Powiązania:: https://bibliotekanauki.pl/articles/244695.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: military vehicles
RUN FLAT tires
composite wheel
Opis:: One of the most essential threats to the mobility of wheeled vehicles is their relatively high sensitivity to tire damage. Tires can be damaged as a result at vehicle-targeting fire, after running on a mine or an improvised charge. The purpose of the article is to analyze the current technical solutions in wheeled vehicle tires, allowing for the unobstructed use of the vehicle despite the damage of one or several tires (RUN FLAT systems). Since RUN FLAT systems have become increasingly popular in passenger cars as well, the article contains partial references to civilian solutions. One should remember that RUN FLAT systems are not only to guarantee vehicle mobility following the loss of pressure in the tire in straight-line motion, but also crew safety providing sufficient driving level and stability at longer distances. The article presents solutions of this type, applied not only in military vehicles, but also considers research-structural works implemented by ROSOMAK S.A. in cooperation with other centres. The works presented in this article were financed by ROSOMAK S.A. and National Research and Development Centre (NCBiR) (project SPB – RolRes, agreement no PBS1/A6/1/2012).
Źródło:: Journal of KONES; 2015, 22, 1; 299-306
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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