Temat: crash-test - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: An approach to improve passive safety by means of "active bumper" which compensates the łuck of cars compatibility as well as different aggressivity when frontal impact of a large truck and a motor car is under consideration
Autorzy:: Kaźmierczak, A.
Górniak, A.
Kawaliło, P.
Krakowian, K.
Powiązania:: https://bibliotekanauki.pl/articles/243990.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: safety
crash test
compatibility
aggressivity
occupant protection
accident
Opis:: The seriousness of an impact "large truck - motor vehicle" has been exhibited. The procedures of truck and motor car s crash testing were compared in order to point out the necessity of car s crashworthiness investigation in terms of compatibility and impacts between vehicles with large difference in mass and rigidity. Furthermore the paper explains a course of frontal impact between large truck and motor car in order to proof the necessity of cars compatibility as well as aggressivity investigation. The mass effect along with rigidity effect was exhibited as well. Moreover, the paper explains the design as well as objectives of the passive safety devices of both motor car and large truck. The concept of another, innovative passive safety device such as "active bumper" has been emphasized. Its working principia, adaptive control as well as the diagrammatically presented design were pointed out. The bumpers control is very difficult as it will be entirely independent from a driver and it has to operate in random condition, therefore, the paper contains a proposition of controlling algorithm of the "active bumper". It also contains explanation of adaptation of the "active bumper" with various working condition as well as consideration of the "active bumper" application with various types of large trucks design.
Źródło:: Journal of KONES; 2010, 17, 3; 181-188
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Experimental crash tests involving passenger cars and the prototype concrete protective barrier
Autorzy:: Borkowski, W.
Hryciów, Z.
Rybak, P.
Wysocki, J.
Powiązania:: https://bibliotekanauki.pl/articles/247037.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: experimental tests
test track
concrete protective barrier
crash test
experimental verification
Opis:: The work describes the experimental test methodology and results obtained during the experimental crash tests involving passenger cars and the prototype concrete protective barrier, which was built according to the original design prepared by the authors of this article. The crash tests involving a vehicle and the protective barrier cover the experiment results in three basic areas: severity ofthe collision impact on vehicle passengers, the impact on a vehicle and deformation of the road protective system. Applied testing procedures meet the requirements of the national standards, that make the equivalents of the European standards EN-1317-1:1998, EN-1317-2:1998, EN-J 317-3:2000. The tests have been performed for selected crash criteria (TB11 and TB32), for a normal restrain level (N2), using three passenger's cars (Dodge Neon and 2 units of Suzuki Swift). Applied testing procedures meet the requirements of the national standards [1-5]. The work presents examples of experimental test results in three basie areas: intensity of the crash impact on the vehicle passengers, the impact on a vehicle and deformation of the road protective system. The test results have been presented in a form of courses of speeds and accelerations along the vehicle body axes x, y, z. Acceleration severity index (ASI), theoretical head impact velocity (THIV), post-impact head delay (PHD), vehicle cabin deformation index (VCDI) and deformation levels of the road protective system (W) have been also defined.
Źródło:: Journal of KONES; 2010, 17, 2; 35-42
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Numerical implementation of car impact into the modified road barrier
Autorzy:: Kiczko, A.
Niezgoda, T.
Nowak, J.
Dziewulski, P.
Powiązania:: https://bibliotekanauki.pl/articles/243992.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: road transport
car - road barrier system
crash test
numerical simulations
Opis:: In previous works the research team submitted [1-5] a series of numerical analysis of the car - road barrier dynamical system, directed to the elaboration of the numerical model methodology of an impact problem with the use of the chosen CAE programs. In this article there are presented the results of works on numerical implementation of crash tests of a car with the modified road barrier. The results are presented on the example of the Suzuki Swift car impact into the road barrier, which is equipped with the additional protective panel. The panel consists of the foamed aluminium plate whose fastening to the belt of the W-beam guardrail and a shield presented itself a thin-walled open profile made from the polyester-glass laminate. The whole construction was connected with the W-beam guardrail by riveting. The Geo Metro (Suzuki Swift) car, commonly available model from National Crash Analysis Centre (NCAC), was used for numerical analysis of the car-barrier system. Numerical analysis was carried out with the use of LS-Dyna system. The comparison of the time courses of acceleration, acting on the vehicle centre of gravity and the ways of the barrier and car deformation, achieved by the experimental and simulation ways, took place. The good qualitative and quantitative conformities in accelerations w archieved.
Źródło:: Journal of KONES; 2010, 17, 3; 189-196
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Prototype articulated joint in connections of the concrete protective barrier
Autorzy:: Borkowski, W.
Hryciów, Z.
Rybak, P.
Wysocki, J.
Powiązania:: https://bibliotekanauki.pl/articles/244656.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
road safety
concrete protective barrier
crash test
articulated joint
Opis:: The work describes methodology of selection of a prototype articulated joint used to connect the segments of the concrete protection barrier. The barrier and the joint have been made according to the original project of the authors of this paper. Dimensions of the component elements of the joint were defined on the basis of numerical calculations in LS-DYNA system, using finite element method. They also allowed to identify places sensible to damage. Based on the project, the experimental tests have been performed for the joint strength to stretching. The tests performed on the resistance machine showed improper technology and poor quality of welds joining individual elements, particularly the bolt with connecting steel. Results of these tests made the basis for introducing the changes to the project. Repeated tests confirmed their rightness. The final evaluation of quality and usefulness of the prototype articulated joint in the connections of movable protection barrier were defined during the crash tests on the test track of the Certified Research Laboratory of the Research Institute for Roads and Bridges. The crash tests were performed for selected collision criteria (TB11 and TB32), normal restrain level (N2), using three passengers cars. Applied concrete barrier test procedures are in accordance with the requirements of national standards, that make the equivalents of the European standards.
Źródło:: Journal of KONES; 2011, 18, 1; 85-92
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Experimental researches of dynamic loads of armoured personnel carrier and its crew during collision with rigid obstacle and all - terrain vehicle
Autorzy:: Borkowski, W.
Hryciów, Z.
Rybak, P.
Wysocki, J.
Wiśniewski, A.
Powiązania:: https://bibliotekanauki.pl/articles/242892.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: armoured personnel carrier
dynamic load
dummy
crash test
passive safety
Opis:: 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.
Źródło:: Journal of KONES; 2013, 20, 3; 71-78
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Numerical analysis of the front impact between two shunting locomotives
Autorzy:: Dziewulski, P.
Konarzewski, M.
Szurgott, P.
Powiązania:: https://bibliotekanauki.pl/articles/245458.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: finite element method
dynamic analysis
crash test
railway vehicle
LS-DYNA
Opis:: The main aim of this study is to carry out dynamic finite element analysis of a crash between two identical shunting locomotives. Numerical simulations include front-end impact of the running locomotive with a stationary one situated on the track. The first design collision scenario includes such obstacle for railway vehicles operated on national and regional networks. A considered locomotive based on a popular Polish shunting locomotive – SM42. However, the tested locomotive was slightly modernized in comparison with the original one. Finite element model of the locomotive was developed by the authors. FE analyses were carried out according to the PN-EN 15227 standard, which provides crashworthiness requirements for railway vehicle bodies. LESS-DYNA computer code was used for the simulations. The energy balance was initially checked in order to confirm the accuracy of analysis. The paper presents selected results of analyses focused on the locomotive frame behaviour. Contours of effective stress for selected moments of time are presented. Time histories of selected parameters are also depicted. The current study is a part of the project focused on modernization of the SM42 locomotive. Therefore, it is required to evaluate the locomotive behaviour during the impact test. Dynamic numerical simulation is acceptable since the experimental tests on the complete objects under consideration are impractical and impossible at the moment.
Źródło:: Journal of KONES; 2014, 21, 3; 81-88
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Numerical analysis of impact between shunting locomotive and selected road vehicle
Autorzy:: Dziewulski, P.
Stankiewicz, M.
Szurgott, P.
Powiązania:: https://bibliotekanauki.pl/articles/245955.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: finite element method
dynamic analysis
crash test
railway vehicle
LS-DYNA
Opis:: The main aim of this study is to carry out dynamic finite element analysis of a crash between shunting locomotive and selected road vehicle. Numerical simulations include side impact of the running locomotive in the vehicle situated across the track. A considered locomotive based on a popular Polish shunting locomotive – SM42. However, the tested locomotive was slightly modernized in comparison with the original one. Finite element model of the locomotive was developed by the authors whereas the vehicle FE model was download from the free database of such models. FE analysis was carried out according to the PN-EN 15227 standard which provides crashworthiness requirements for railway vehicle bodies. 15 tons large truck was selected as a representative for the study. One of the design collision scenario includes such deformable obstacle for railway vehicles operated on national and regional networks. LS-DYNA computer code was used for the simulations. The paper presents selected results of analysis generally focused on the locomotive frame behaviour. Contours of stress for selected moments of time are presented. Moreover, time histories of selected parameters are depicted. The energy balance was also checked in order to confirm the accuracy of analysis. The current study is a part of the project focused on modernization of the SM42 locomotive. Therefore, it is required to evaluate the locomotive behaviour during the impact test. Dynamic numerical simulation are acceptable since the experimental tests on the complete objects under consideration are impractical and impossible at the moment.
Źródło:: Journal of KONES; 2014, 21, 4; 87-94
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Crash tests of a car with modified road barriers
Autorzy:: Nowak, J.
Niezgoda, T.
Kiczko, A.
Gieleta, R.
Powiązania:: https://bibliotekanauki.pl/articles/247421.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
road transport
car - road barrier system
crash test
experimental examinations
Opis:: In this article experimental results of a car impact into a modified road barrier are presented. For crash tests a modified protection barrier SP-04, composed of guide poles, type B, and bridge posts IPE140, was chosen. The road barrier modification lies in using additional panels absorbing the impact energy. The protective panels, subjected to examination, consisted of a metal or a composite (laminate, glass-polyester) shield in which the f o amed aluminium or polyurethane foam was a filling. The Suzuki Swift car s were prepared for the crash tests. Tests were carried out at the Automotive Industry Institute (PIMOT) in Warsaw, with the use o f a test sample of the road barrier. For the safety sake the car's speed during the experimental examinations was limited to 50 km/h. Moreover, the vehicle hits perpendicularly in a properly modified road barrier's sector. During the test a registration of acceleration was carried out by the acceleration sensors placed in the car (among others in the centre of gravity and over the rear axle of a car). A crash test course of the system C-G was registered with the use of two cameras for fast shooting (Fantom v12). An image was recorded with the resolution of 1280 x 800 pixels and with frequency of 1000 shots per second. The shot exposure time equalled to 250 microseconds.
Źródło:: Journal of KONES; 2010, 17, 3; 333-339
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Simulations of front impact between two shunting locomotives at different velocities
Autorzy:: Szurgott, P.
Kozioł, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/244509.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: finite element method
dynamic analysis
crash test
railway vehicle
LS-DYNA
Opis:: The main aim of this study is to carry out dynamic simulations of a crash between two identical shunting locomotives running at different velocities. Numerical analyses using a Finite Element Method (FEM) include front-end impact of the running locomotive with a stationary one situated on the track. Such collision scenario is required for railway vehicles operated on national and regional networks. A considered locomotive based on a Polish shunting locomotive – SM42, however the tested locomotive was slightly modernized. Finite element model of the locomotive was developed by the authors. FE analyses were conducted according to the PN-EN 15227 standard, which provides crashworthiness requirements for railway vehicle bodies. LS-DYNA computer code was used for the simulations. The paper presents selected results of analyses focused on the locomotive frame behaviour. Simulations were performed for the vehicle between 20 and 90 km/h. An influence of the impact velocity on some output quantities was determined. Contours of effective stress for selected moments of time as well as time histories of selected values are depicted. For modernized locomotives, it is required to evaluate their behaviour during the impact test. Dynamic numerical simulation is acceptable since the experimental tests on the complete objects under consideration are impractical and impossible sometimes.
Źródło:: Journal of KONES; 2016, 23, 2; 381-388
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Experimental validation of the numerical model of a car impact on a road barrier
Autorzy:: Barnat, W.
Bogusz, P.
Dziewulski, P.
Gieleta, R.
Kiczko, A.
Klasztorny, A.
Klasztorny, M.
Niezgoda, T.
Ochelski, S.
Powiązania:: https://bibliotekanauki.pl/articles/245936.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: car - road barrier system
crash test
experimental examinations
numerical simulations
numerical model validation
Opis:: This analysis considers the problem related to the transport safety improvement by applying specialized energy absorbing elements. The advanced finite element method was used to solve this problem. The obtained results permit to estimate the practical usability of the proposed solution. In previous works of the examination team [1-5] a series of numerical analysis of the car -- road barrier dynamical system, directed to the elaboration of the numerical model methodology of an impact problem with the use of chosen CAE programs, was submitted. In this article experimental results of a Suzuki Swift car impact into a standard road barrier arę presented. Tests were carried out at the Automotive Industry Institute (PIMOT) in Warsaw, with the use of a test sample of the road barrier. Presented results of experimental tests serve to validation of a numerical model of the aforementioned system. For the safety sake the car's speed during the experimental examinations was limited to 50 km/h. Moreover, the vehicle hit perpendicularly a properly modified road barrier's sector. Experimental initial boundary and constructional conditions were modelled in numerical examinations. in which a commonlv available Suzuki Swift car model, http://www.ncac.gwu.edu, was used. Numerical analysis was carried out with the use of LS-DYNA system.
Źródło:: Journal of KONES; 2010, 17, 1; 17-27
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Development of finite element model of shunting locomotive applicable for dynamic analyses
Autorzy:: Dziewulski, P.
Szurgott, P.
Powiązania:: https://bibliotekanauki.pl/articles/247466.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: finite element method
modelling
dynamic analysis
crash test
railway vehicle
LS-DYNA
HyperMesh
Opis:: The main aim of this study is to develop a finite element model of the hybrid-shunting locomotive. Considered locomotive is based on a popular shunting locomotive in Poland – SM42. All components above the locomotive frame could be modified in comparison to the original object, whereas a chassis was essentially unchanged. Such solution allows the operators freely configure components e.g. diesel engine, generator, cooling module, cab etc., according to their own requirements. Works on the FE model were focused on very accurate reflection of the locomotive frame since the planned dynamic analyses include crash tests. FE model of the frame has a fine mesh and it is considered as a deformable component. Other segments of the vehicle are simplified and treated as rigid bodies mostly. FE model was developed on the basis of the locomotive CAD model. It was decided to transform the CAD model of the frame into the FE one applying the midsurface procedure. Such approach is correct since the locomotive frame is made of a large number of steel elements in the form of sheet metal plates and sections welded together. Altair Hyper Mesh software was used in the FE model developing process. Appropriate connections between respective components of the model e.g. wheelset – bogie, bogie – locomotive frame, were applied. Finally, the locomotive FE model consists of about 116 thousands of finite shell and solid elements and about 125 thousands of nodes. Dynamic analyses of the locomotive FE model will be carried out using LS-DYNA computer code.
Źródło:: Journal of KONES; 2014, 21, 4; 95-102
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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