Wyniki wyszukiwania - BazTech

1

Porównanie błędów pionowych centrów frezarskich o różnym okresie eksploatacji

Jankowski T., Borkowski W., Piórkowski P., Roszkowski A., Skoczyński W.

Mechanik

|

2018

|

R. 91, nr 8-9

650--652

PL

Przedstawiono wyniki testów diagnostycznych trzech trzyosiowych pionowych centrów frezarskich po różnym okresie eksploatacji w warunkach przemysłowych. Przeanalizowano błędy obróbkowe. Dokonano oceny obrabiarek na podstawie wartości błędów oraz określono przydatność maszyn do realizacji zadań obróbkowych w przedsiębiorstwie.

EN

Presented are the results of diagnostic tests for three 3-axis vertical milling centers with different time of machining. An error analysis was carried out. Machine tool evaluation was made on the basis of error values and their suitability for carrying out machining tasks was determined.

2

Zastosowanie techniki LCA do wspomagania i doskonalenia zarządzania środowiskowego w przedsiębiorstwach górniczych

Burchart-Korol D., Czaplicka-Kolarzowa K., Turek M., Borkowski W.

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

|

2016

|

z. 87

63--76

PL

W artykule zaproponowano zastosowanie techniki oceny cyklu życia LCA (Life Cycle Assessment) do wspomagania Systemu Zarządzania Środowiskowego (SZŚ). Technika LCA umożliwia w sposób kwantytatywny dokonanie oceny potencjalnych obciążeń środowiskowych zarówno dla kopalni, jak i procesów produkcji górniczej, dzięki czemu może stanowić istotny element zarówno do doskonalenia Systemu Zarządzania Środowiskowego (SZŚ) (zgodnie z wytycznymi nowej normy ISO 14001:2015), jak i do wspomagania zarządzania środowiskiem w przedsiębiorstwach górniczych.

EN

The paper proposes the application of life cycle assessment to support the Environmental Management System (EMS). The LCA enables the quantitative assess the potential environmental impacts for the mining enterprises and production processes, so it can be an important element both for the improvement of the Environmental Management System (EMS) (in accordance with the guidelines of the new ISO 14001:2015) and to support environmental management in the mining enterprises.

3

Numerical and experimental research on the dynamic loads in military vehicles

Rybak P., Borkowski W., Wysocki J.

Journal of KONES

|

2016

|

Vol. 23, No. 4

435--441

EN

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.

4

Badania eksperymentalne wojskowych pojazdów mechanicznych

Rybak P., Borkowski W., Hryciów Z., Wysocki J., Papliński K., Michałowski B., Wiśniewski A.

TTS Technika Transportu Szynowego

|

2015

|

R. 22, nr 12

1327--1330, CD

PL

W ramach pracy prezentowane są wyniki badań eksperymentalnych dotyczących różnych prac naukowobadawczych wspartych wiedzą ekspercką, analizą dostępnych materiałów i studiami literaturowymi, które nie uwzględniają oddziaływania na pojazd wojskowy szeroko rozumianej problematyki wybuchu niekontaktowego. Przedstawiono wybrane wyniki badań obciążeń dynamicznych dla czołgów, bojowych wozów piechoty, kołowych transporterów opancerzonych i innych pojazdów wojskowych. Badania eksperymentalne realizowano zgodnie z obowiązującymi przepisami w MON z uwzględnieniem norm obronnych i oryginalnych procedur badawczych opracowanych przez zespół.

EN

As part of the work presents the results of experimental investigations on various scientific-research works supported by expertise, analysis of available materials and literature studies that do not take into account the impact on the military vehicle the broader issue of non-contact explosion. The paper presents selected results of dynamic load for tanks, infantry fighting vehicles, wheeled armored personnel carriers and other military vehicles. Experimental investigations carried out in accordance with the applicable rules at the Ministry of National Defence, taking into account the defense standards and original research procedures developed by the team.

5

The research on dynamic loads and traction properties of military vehicles in the aspect of improvement of their structures

Borkowski W., Rybak P., Hryciów Z., Wysocki J., Michałowski B., Wiśniewski A.

Journal of KONES

|

2015

|

Vol. 22, No. 1

37--46

EN

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.

6

Research on the effectiveness of the innovative protective structure for vehicles

Borkowski W., Rybak P., Hryciów Z., Starczewski L., Gmitrzuk M., Szcześniak K.

Journal of KONES

|

2015

|

Vol. 22, No. 1

29--36

EN

This article presents results of the research on developed innovative protective structure for vehicles. The fundamental objective of executed work was to check the correctness of assumed assumptions, shape and geometry of the solution and configuration of components that affect the protective effectiveness during the impact of the explosive. In order to reach that goal, both model tests and experimental tests were carried out. The experimental tests were carried out on the real object. Significant information about the level, directions and nature of affecting dynamic loads were obtained as well as information about their impact on particular structure elements. The MES numerical model of the research object has been developed in LS-Dyna system. Special emphasis was placed on the mapping of complex geometry, configuration of components and their interactions. Test calculations were carried out and then the resistance calculations were made. As a load, generating post-explosion impact wave, the load imposed by normative requirements concerning the way of explosive arrangement as well as the shape and weight. The analysis of obtained results of the experimental and numerical tests allows for high evaluation of effectiveness of proposed solution.

7

Mathematical model of stabilising and tracking control system in main battle tank

Borkowski W., Hryciów Z., Papliński K. M., Rybak P., Wysocki J.

Journal of KONES

|

2015

|

Vol. 22, No. 4

43--52

EN

The aim of this researches was to identify all functional blocks of tank gun stabiliser 2E28M (installed in tanks T-72 and PT-91 Twardy) in order to build mathematical model of the system. The tank gun stabiliser is an electro-hydraulic control system, which makes possible aiming at a target, tracking of a target and stabilise of a given gun and turret angular position. The two-axial stabiliser consists of two separate control systems to stabilise the gun in elevation and the turret (with gun) in azimuth. After detailed analysis of construction and work principles, functional schemes of investigated systems were build. Afterwards, static and dynamic characteristics of functional parts of the system were determined. Because of obtained characteristics and based on the knowledge about the system feedbacks, structural schemes and mathematical models of foregoing stabiliser were derived. The results of numerical computations were compared with the existing results of experimental tests carried-out on a real plant. The results of experimental and model simulation investigations showed that the mathematical model and its numerical implementation were correctly developed.

8

Model of eco-efficiency assessment of mining production processes

Czaplicka-Kolarz K., Burchart-Korol D., Turek M., Borkowski W.

Archives of Mining Sciences

|

2015

|

Vol. 60, no. 2

477--486

EN

The paper presents an author’s method of eco-efficiency assessment of mining production processes in hard coal mines, which enables integrating results of evaluating both environmental and economic aspects. The proposed method uses life cycle approach to assess environmental efficiency and the result of operating activities to assess economic efficiency. The comprehensive method of assessing miningproduction processes was proposed as the Key Performance Indicator (KPI) in hard coal mines in Poland to be used to support decision making in mining companies.

PL

W artykule przedstawiono autorska metodę oceny ekoefektywności procesów produkcji górniczej w kopalniach węgla kamiennego, która umożliwia zintegrowanie wyników oceny aspektów środowiskowych i ekonomicznych. Proponowana metoda oceny wykorzystuje podejście cyklu życia do oceny efektywności środowiskowej oraz wynik z działalności operacyjnej do oceny efektywności ekonomicznej. Opracowaną kompleksową metodę ceny procesów produkcji górniczej zaproponowano jako kluczowy wskaźnik efektywności KPI (Key Performance Indicator) kopalń węgla kamiennego w Polsce stosowany do wspomagania procesów decyzyjnych w przedsiębiorstwach górniczych.

9

Bezpieczeństwo użytkowników wojskowych pojadów mechanicznych w zdarzeniach drogowych

Borkowski W., Hryciów Z., Rybak P., Wysocki J., Papliński K.

Logistyka

|

2014

|

nr 5

121--128

PL

W pracy przedstawiono wybrane zagadnienia związane bezpieczeństwem użytkowania wojskowych pojazdów mechanicznych. Opisano podstawowe sposoby transportu żołnierzy na samochodach ciężarowych oraz najważniejsze czynniki wpływające na ich bezpieczeństwo. Przeanalizowany został wpływ umieszczenia żołnierzy na samochodzie ciężarowym na poziom ich bezpieczeństwa. Obliczenia zrealizowano dla małej prędkości zderzenia.

EN

The paper presents selected issues related to safety of use of military vehicles. Basic methods of soldiers transportation on military trucks was described as well as the most important factors affecting their safety. An impact of soldiers’ location on a truck on the level of their security was analysed. Calculations were carried out for low speed collision.

10

Development of sustainability assessment method of coal mines

Burchart-Korol D., Krawczyk P., Czaplicka-Kolarz K., Turek M., Borkowski W.

Journal of Sustainable Mining

|

2014

|

Vol. 13, iss. 4

5--11

EN

Purpose This paper presents an algorithm developed to assess all aspects of sustainable development for hard coal mines. Additionally, an algorithm to assess the environmental efficiency and cost efficiency of mining production processes was presented. Methods To develop the computation algorithm, detailed models were proposed for environmental assessments using Life Cycle Assessment (LCA), whereas Cost-Benefit Analysis (CBA) was proposed for economic and social assessments. Results The algorithm developed is used when preparing a ranking of hard coal mines which considers the main aspects of sustainable development – environmental, economic and social. The tool also enables the performance of both environmental and cost assessment for particular unit processes of mining production. Practical implications The practical purpose is to devise an algorithm that will perform both partial and aggregated assessment of all aspects of the sustainable development of coal mines in Poland. Originality/ value It is the first method which includes all aspects of sustainable development and considers the process approach to assess coal mines.

11

Studies on the effectiveness of the innovative road safety system

Borkowski W., Hryciów Z., Rybak P., Wysocki J., Wiśniewski A.

Journal of KONES

|

2014

|

Vol. 21, No. 2

27--32

EN

The paper evaluates the effectiveness of the innovative road safety system equipped with prototype component segments composed of a body made of a plastic filled with reinforced concrete. Main advantages of the new safety barrier include increased resistance to corrosion as well as easy transport and assembly directly on a road section being secured. Model tests were performed on a car of 900 kg weight allowing for carrying out the TB11 tests according to the EN 1317-2 standard. LS-DYNA software was applied for modelling, using the finite element method. The work presents the numerical test results, trajectory of vehicle movement after collision as well as the concrete barrier displacement. It also includes examples of stress in steel bars and joint coupling. Detailed assessing of simulation test results were made on the basis of ASI, THIV and PHD index. They were calculated on the basis of velocity and acceleration courses of selected car bodywork points. Numerical test results confirm the fact that this system meets the normative requirements. They allow for qualifying that system for B impact severity level and W4 working width. The results presented in the paper make the initial stage of the study and further calculations will be oriented towards a possibility of meeting the requirements for higher restraint levels.

12

Influence of the shape of the explosive charge on blast profile

Hryciów Z., Borkowski W., Rybak P., Wysocki Z.

Journal of KONES

|

2014

|

Vol. 21, No. 4

169--176

EN

When an explosive charge is fired, the nature and mass of the explosive are the only parameters of importance usually considered. The shape however, also plays a major role in the effect of an explosive charge. Knowledge of shape effect can be important before the use of the explosive (in order to create a maximum effect with a given mass of explosive), or in post-explosion damage assessment. The shape effect however is only significant within a certain range from the charge. At longer distance, the produced blast wave tends to be spherical. The shock wave parameters studied in this work are the peak overpressure and the first positive impulse. A series of numerical test has been performed in order to determine the range of influence of the charge shape. Different locations of initiation were compared. A hemispherical charge was point detonated at its centre whereas a cylindrical shape was detonated at the centre of an upper or lower plane. Numerical simulations of near field burst were conducted using LS-DYNA software. During numerical tests a pressure fields were determined for different shapes of explosive charges as well as the pressure waveforms at points located 1000 mm from a centre. Additionally, reference pressure history curves from LOAD_BLAST_ENHANCED procedure were calculated.

13

Analysis of the influence of concrete safety barrier segment length on road safety

Borkowski W., Hryciów Z., Rybak P., Wysocki J., Wiśniewski A.

Archiwum Motoryzacji

|

2014

|

Vol. 63, nr 1

25--34, 131--140

EN

The paper presents problems related to road safety in terms of the development of the concrete barriers system, dispersing energy of car collision on the roads with high traffic and high accident risk. Particular attention was paid to barriers' basic parameters - weight and length of the segment. The main objective of the numeric researches was to assess the qualitative and quantitative effects of the car collision with a concrete road barrier in accordance with the standard EN 1317. To the model tests a 900 kg passenger car has been used which allowed to perform TB11 test according to EN 1317-2 standard (initial velocity - 100 km/h). Numerical studies were carried out for concrete segments lengths: 2, 4, 6, 8 m for two selected impact points. Detailed comparisons of simulation test results obtained for individual variants were made on the basis of the acceleration courses of selected car bodywork points, calculated indicators, the trajectory of vehicle movement after collision as well as on the basis of the behaviour of the concrete barriers.

PL

Niniejsza praca stanowi rozwinięcie problematyki bezpieczeństwo ruchu drogowego w aspekcie opracowania systemu betonowych barier ochronnych, rozpraszających energią zderzenia samochodu na drogach o dużym natężeniu ruchu i wysokim zagrożeniu wypadkowym, ze szczególnym uwzględnieniem jej podstawowych parametrów konstrukcyjnych (masy i długości segmentu). Głównym celem przeprowadzonych badań numerycznych było dokonanie oceny jakościowej i ilościowej skutków zderzenia samochodu z betonową barierą drogową zgodnie z obowiązującą normą EN 1317. Obliczenia przeprowa-dzono w systemie LS - DYNA wykorzystującego metodę elementów skończonych. Pojazd badany o masie 900 kg poruszał się z prędkością początkową 100 km/h, a następnie uderzał w system barier. Badania numeryczne zrealizowano dla segmentów betonowych o długościach: 2, 4, 6, 8 m, dla dwóch wybranych punktów zderzenia. Szczegółowych porównań wyników badań symulacyjnych, otrzymanych dla poszczególnych wariantów obliczeniowych, dokonano na podstawie przebiegów czasowych przyspieszeń wybranych punktów nadwozia samochodu, obliczonych na ich podstawie wskaźników, trajektorii ruchu pojazdu po zderzeniu, a także na podstawie zachowania się betonowej bariery ochronnej.

14

Studies on the supporting structure of the ”crossbow” rocket launcher in the aspect of improvement of its resistance properties

Rybak P., Borkowski W., Hryciów Z., Michałowski B., Wiśniewski A., Wysocki J.

Journal of KONES

|

2013

|

Vol. 20, No. 3

353--358

EN

This paper presents the results of the studies on a special vehicle Polaris Ranger 6×6 800 equipped with the ”Crossbow” antiaircraft rocket launcher, manufactured by TELESYSTEM-MESKO Sp z o. o. Implementation and Manufacture Centre. The supporting structure of the launcher made the main object of the analysis. The essential goal of that undertaking was to obtain a structure of resistance assuring reliable system operation in various conditions of use. In order to reach that goal, the experimental as well as the model tests have been performed on the launcher vehicle. The experimental tests were carried out during multi-variant rides on the paved roads and in the wilderness of significant level of unevenness. Significant information on the level, directions and nature of affecting dynamic loads and the effects of their influence on the vehicle elements. The analysis of obtained results also provided the data required for a development of a model of the object of the studies. A MES model of the object of the studies was prepared in the LS-DYNA system. A high pressure was put on modelling a complex chassis of the launcher and mutual reaction of assemblies and parts. A generalized issue on the own properties was solved – frequencies and associated forms of vibrations of own main assemblies were designated. Resistance calculations were carried out for assumed loads. In principle, loads imposed by normative requirements for a particular class of armament and military equipment were assumed. Loads resulting from potential conditions of use and installation on other carriers were also included. The tests were performed for various load variants. Sensitive elements of the chassis were modified and highly satisfying results were obtained. It gives a reason to think that the chassis is resistant to expected and difficult operation conditions and assures that the whole system will work reliably.

15

Numerical research on the special container of increased technical and design requirements

Rybak P., Borkowski W., Hryciów Z., Michałowski B., Wiśniewski A., Wysocki P.

Journal of KONES

|

2013

|

Vol. 20, No. 3

347--352

EN

This paper presents issues related to the process of designing a 30-feet container to be used as a mobile laboratory for collecting the environmental samples and identification of biological threats. Tactical and technical assumptions for the container, taking into account the requirements of the transport and movement of the army at long distances and in the difficult areas by means of transport characterized by increased traction properties, made the starting point. A possible way of relocation on the land roads using commonly available and military means of transport, possibilities of loading and unloading using the autonomic system and automatic levelling system are described. It describes the process of creating the MES model of the supporting structure and assumptions taken for that purpose. The basic assumption included invariability of shape, geometry and dimensions of a container compared to containers recognized in the world as the standard ones. Some results of numerical calculations carried out at two stages are presented. At the first stage, the issues on the own values were solved. Frequencies of own vibrations and associated forms of vibrations were identified. At the second stage, forced container vibrations were analysed. Resistance calculations were performed for the supporting structure of the container in the aspect of evaluation of the strain condition of the whole structure, as well as its components for assumed load variants. A variability of resistance calculations takes into account such cases as the influence of the under-container trailer riding on the uneven ground, loading and unloading a container from a trailer using autonomous system, diversity of loads on the supports resulting from the change of the ground density under the supports. A preliminary analysis of container transport possibilities and transport unit traction properties have been also carried out.

16

Experimental researches of dynamic loads of armoured personnel carrier and its crew during collision with rigid obstacle and all - terrain vehicle

Borkowski W., Hryciów Z., Rybak P., Wysocki J., Wiśniewski A.

Journal of KONES

|

2013

|

Vol. 20, No. 3

71--78

EN

The paper presents problems related to dynamic loads of armoured personnel carriers design as well as soldiers located inside them. During tactical operation, there is often the need for ramming other vehicles or terrain obstacles in order to provide road possibility. The lack in armoured vehicles, commonly used in cars crumple zones, will result in large values of accelerations. This can cause significant risk to the crews of vehicles. In order to assess the exposure of soldiers while overcoming terrain and engineering obstacles experimental studies were performed covering a carrier’s collision with a rigid barrier and ramming of all-terrain vehicle. In the paper the research conditions and used measurement equipment were described. A four-wheel SKOT personnel carrier and Tarpan Honker car, out of service, was used for the tests. The tests were carried out within the area of the Military Institute for Armoured and Automotive Technology in Sulejówek. During crash tests, anthropomorphic measurement equipment – Hybrid III 50th Male Dummy type – was used for recording the values of loads affecting the soldiers. The article presents some results of experimental studies. The values of the carrier’s body accelerations in driver’s and landing troop compartment were compared as well as dynamic loads of test dummies. The results obtained during vehicle ramming prove that these types of actions do not cause serious threats for the members of the carrier crew.

17

Experimental researches of safety of armoured personnel carrier crew during collision with obstacle

Hryciów Z., Borkowski W., Wysocki J., Rybak P., Wiśniewski A.

Archiwum Motoryzacji

|

2013

|

Nr 3

3--12, 87--96

EN

The paper presents problems related to dynamic loads of armoured personnel carriers design as well as soldiers located inside them. In order to assess the exposure of soldiers while overcoming terrain and engineering obstacles experimental studies were performed covering a carrier's collision with a concrete obstacle. The scope of the tests included a collision of the armoured personnel carrier with obstacle for two speeds: 6 and 12 km/h. During crash tests, anthropomorphic measurement equipment - Hybrid III 50th Male Dummy type - was used for recording the values of loads affecting the soldiers. During crash tests, two fast video cameras were used for recording motion of the carrier and obstacle's plates. The vehicle body accelerations were recorded as well. ln the paper the research conditions and used measurement equipment were described. Same results of experimental studies were presented. Typical phases of motions of dummies located in driving and landing troop compartment were presented. The values of the carrier's body accelerations in driving and landing troop compartment were compared, displacements of barrier's segments were described. Obtained results indicated that carrier's driver is subjected to higher loads. During crash test at law velocities, the limit values were not exceeded in any analysed case.

PL

W pracy przedstawiono problematykę związaną z obciążeniami dynamicznymi, jakim podlega konstrukcja transportera opancerzonego, jak również znajdującej się w nim załogi w trakcie realizacji misji. W celu oceny narażenia żołnierzy podczas pokonywania przeszkód i zapór inżynieryjnych wykonano badania eksperymentalne polegające na zderzeniu transportera z barierą złożoną z płyt betonowych. Badania wykonano dla dwóch prędkości zderzenia: 6 i 12 km/h. Do badań użyto dwa manekiny badawcze Hybrid III, które umożliwiły m.in. pomiar przyspieszeń głowy oraz sił i momentów działających w górnym odcinku kręgosłupa. W trakcie badań rejestrowano ponadto przemieszczenia transportera i bariery za pomocą szybkich kamer jak również wartości przyspieszeń kadłuba transportera. W artykule scharakteryzowano użytą aparaturę pomiarową. Przedstawiono wybrane wyniki badań eksperymentalnych. Zamieszczono fazy ruchu manekina w przedziale kierowania i przedziale desantowym dla charakterystycznych momentów. Zestawiono wartości opóźnień kadłuba transportera w przedziale kierowania i przedziale desantowym oraz opisano przemieszczenia barier. Otrzymane wyniki wskazują, że większym obciążeniom podlega kierowca pojazdu. Dla analizowanych zderzeń z małymi prędkościami nie zaobserwowano przekroczenia wartości dopuszczalnych obciążeń.

18

Badanie skutków oddziaływania ładunków wybuchowych na konstrukcję transportera opancerzonego

Borkowski W., Hryciów Z., Rybak P., Wysocki J.

Systems : journal of transdisciplinary systems science

|

2012

|

Vol. 16, nr 1

99-107

PL

Kołowy transporter opancerzony (KTO) jako opancerzony pojazd bojowy stanowi podstawowe wyposażenie naszych kontyngentów wojskowych w ramach różnorodnych misji poza granicami kraju. Właściwa liczba sprawnych bojowo i technicznie KTO decyduje o pomyślności i skutecznym działaniu pododdziałów. Działania bojowe narażają KTO wraz z załogą na pociski z broni strzeleckiej (kalibru 14,5 mm), granatników przeciwpancernych, odłamków pocisków artyleryjskich, min oraz improwizowanych ładunków wybuchowych (IED). Taki arsenał środków rażenia powoduje różnorodne, losowe, uszkodzenia wozu bojowego [14]. Na ogół nie wiadomo, jaka jest masa ładunku, rodzaj (typ) materiału wybuchowego oraz jego położenie względem KTO. W pracy podjęto próbę oszacowania skutków i poziomu obciążeń elementów konstrukcyjnych podwozia KTO wywołanych znaną wielkością ładunku wybuchowego, usytuowanego na podłożu, w podłużnej płaszczyźnie symetrii pojazdu, pomiędzy 1-2 mostem napędowym [3].

EN

Wheeled Armoured Personnel Carrier (APC), as the armored combat vehicle, are the basic equipment of our military contingent, within the framework of various missions outside the country. The correct quantity of combat and technically serviceable APC's decide the success and effectiveness of military unit operation. Combat activity expose APC's and their crew to the bullets (calibre 14.5 mm), propelled anti-tank missiles, fragments of shells, mines and the improvised explosive devices (IED). This arsenal of armament causes various kind and random damage of the combat vehicle[14]. In general, there is not knowing what was the mass and type of the explosive and its location relative to APC. In the paper, an attempt was made to estimate effects of explosives devices impact on the structure of APC's chassis. A known mass of explosive was situated on the ground, in the longitudinal plane of symmetry of the vehicle, between 1-2 driving axle [3].

19

Badanie obciążeń dynamicznych pojazdów mechanicznych w aspekcie bezpieczeństwa oraz komfortu jazdy

Rybak P., Borkowski W., Hryciów Z., Wysocki J., Michałowski B.

Systems : journal of transdisciplinary systems science

|

2012

|

Vol. 16, nr 1

445-456

PL

W Instytucie Pojazdów Mechanicznych i Transportu Wydziału Mechanicznego Wojskowej Akademii Technicznej funkcjonuje, od połowy lat osiemdziesiątych, zespół naukowy zajmujący się badaniem i analizą obciążeń dynamicznych, komfortu jazdy, własności trakcyjnych i bezpieczeństwa pojazdów mechanicznych. W pracy zasygnalizowano specyfikę użytkowania i warunki eksploatacji pojazdów mechanicznych, w tym w zastosowaniach wojskowych. Zaprezentowano wybrane wyniki zrealizowanych przez zespół badań (modelowych i eksperymentalnych). Przyjęte obciążenia działające na rozważane pojazdy (lub ich elementy) wynikają z warunków użytkowania, a w tym m. in. z ruchu po nierównościach terenowych, strzelania z armaty dużego kalibru, oddziaływania min lub improwizowanych ładunków wybuchowych, trafienie pociskiem nie powodującym przebicia. Z uwagi na rodzaj analizowanych pojazdów przedstawione rezultaty mają zasadniczo charakter jakościowy.

EN

The Institute of Motor Vehicles and Transportation in the Mechanical Faculty of Military University of Technology working, since the mid-eighties, the scientific team involved in research and analysis of dynamic loads, vehicle ride comfort, driveability and safety of motor vehicles. The work signals the specific use and operating conditions of motor vehicles, including military applications. The paper presents selected results of research carried out by a team (modeling and experimental). Assumed loads acting on the considered vehicles (or their components) due to terms of use, including, among others. movement of rolling terrain, shooting with large caliber guns, impact of min or improvised explosive devices, missile hit causes no breakthrough. Due to the nature of the analyzed vehicles presented results are essentially qualitative.

20

Studies on possibilities of increasing the impact resistance of KTO Rosomak

Borkowski W., Rybak P., Hryciów Z., Wysocki J.

Journal of KONES

|

2012

|

Vol. 19, No. 4

101-110

EN

Military vehicles are mostly designed in order to provide effective execution of tasks in regions of expected actions and operation conditions. During execution of projects, resulting from participation in peace making and stabilization missions, military vehicles are subject to the impact of various mines and improvised explosives. In many cases, the explosive material mass included in the explosive charges affecting the vehicles significantly exceeds the values specified in standards defining the required protection levels assumed at the design stage. The above determines the search for additional shields or energy-absorbing elements reducing the effects of such influence. Information concerning design solutions is usually classified or very limited. Majority of companies dealing with that issue provides information concerning the scope of their business, highlighting the military area thus high efficiency of their protective solutions, possibly presenting a general outline of a particular solution. This paper presents selected results of analyses and studies being carried out and obtained results of solutions to problems included in the study tasks covering a considered subject. Proposed solutions of protective shields against mines and IED for the KTO Rosomak are presented.