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Wyszukujesz frazę "crash test" wg kryterium: Temat


Tytuł:
A stand for the modelling of crash tests of some parts critical to the passive safety of a vehicle
Stanowisko do modelowania prób zderzeniowych wybranych elementów decydujących o bezpieczeństwie biernym pojazdu
Autorzy:
Gołaszewski, A.
Surmiński, K.
Powiązania:
https://bibliotekanauki.pl/articles/1364802.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
bezpieczeństwo bierne
crash test
passive safety
Opis:
Results of investigations of modelled crash tests have been presented. The results were obtained with the use of a measuring stand that was designed and built at the Department of Vehicles and Fundamentals of Machine Design of the Technical University of Lodz for the simulation of vehicle collisions together with the accompanying phenomena. The stand included a scale vehicle model made of steel profiles with adjustable crumple zone size and variable pre-crash mass, a model acceleration track with a precise vehicle start positioning system where the model was brought to its starting position with the use of a tractor provided with a stepping motor, a non-deformable obstacle, as well as time and deceleration measuring systems. The basic design requirements adopted and the stand calibration procedures have been presented. The research possibilities related to the investigation of modelled crash tests have been described and illustrated with measurement examples. The stand makes it possible to carry out model tests both on the controlled crumple zone and, after inverting the reaction system, on energy-absorbing traffic barriers. Apart from being used by University staff for their own research work, the stand has constituted for several years a cognitively attractive facility willingly used by students during their laboratory classes in subjects related to vehicle construction and passive safety problems.
W artykule zostały zaprezentowane wyniki otrzymane podczas badań modelowych prób zderzeniowych. Zostały one uzyskane przy wykorzystaniu opracowanego i zbudowanego w Katedrze Pojazdów i Podstaw Budowy Maszyn Politechniki Łódzkiej stanowiska pomiarowego do symulacji zderzeń oraz zjawisk im towarzyszących. W skład stanowiska wchodzi redukcyjny model pojazdu wykonany z profili stalowych, posiadający regulowaną wielkość strefy zgniotu oraz zmienną masę przedzderzeniową, tor jezdny z precyzyjnym pozycjonowaniem położenia początkowego modelu pojazdu za pomocą ciągnika ustawiającego model na pozycji startowej przy wykorzystaniu silnika krokowego, nieodkształcalna przeszkoda oraz systemy pomiarowe czasu i opóźnień. Zaprezentowano założenia projektowe oraz procedury kalibracji stanowiska. Przedstawione zostały możliwości poznawcze związane z badaniami modelowymi prób zderzeniowych zilustrowane przykładowymi pomiarami. Stanowisko pozwala na badania modelowe zarówno odnoszące się do stref kontrolowanego zgniotu pojazdu jak i po odwróceniu reakcji do modelowych badań barier energochłonnych. Oprócz badań własnych przedstawione stanowisko stanowi od kilku lat atrakcyjny poznawczo składnik studenckich zajęć laboratoryjnych z przedmiotów związanych z budową pojazdów a także problemami bezpieczeństwa biernego.
Źródło:
Archiwum Motoryzacji; 2012, 3; 47-56
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Deformation properties of tailor-welded blank made of dual phase steels
Autorzy:
Schrek, A.
Švec, P.
Gajdošová, V.
Powiązania:
https://bibliotekanauki.pl/articles/386458.pdf
Data publikacji:
2016
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
dual phase steels
tailor welded blank
drawn part
crash test simulations
reaction force
stal dwufazowa
crash test
symulacja
Opis:
The paper is dedicated to forming and properties of passenger car´s B-pillar reinforcement drawn from simple blank and alternatively tailor-welded blank (TWB). Drawn part is characterised by a place with a large strain, while forming process simulation did not confirm the creation of crack using the TWB consisting of dual phase HCT980X instead of previous HCT600 steel. It is because HCT980X steel has higher strength and lower ductile properties. The analysis of properties of drawn parts is focused on the simulated crash test in Dynaform software. Obtained sizes of drawn forces in simulated frame of the drawn parts and their comparison proved the possibility of the replacement the 1.2 mm thick simple blank from HCT600 steel with the 1 mm thick TWB consisting of HCT600 and HCT980X steel. The changed thickness of the simple blank caused 20% weight saving while containing the same properties of the drawn part.
Źródło:
Acta Mechanica et Automatica; 2016, 10, 1; 38-42
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Crash testy urządzeń infrastruktury drogowej w Inowrocławiu
Crash tests of road infrastructure facilities in Inowrocław
Autorzy:
Szruba, M.
Powiązania:
https://bibliotekanauki.pl/articles/364091.pdf
Data publikacji:
2014
Wydawca:
Nowoczesne Budownictwo Inżynieryjne
Tematy:
crash test
bezpieczeństwo
najechanie
bariera
safety
hovering
barrier
Opis:
25 czerwca 2014 r. w Inowrocławiu już po raz czwarty odbyły się crash testy (testy zderzeniowe) urządzeń infrastruktury drogowej. Po raz pierwszy w Polsce, przy udziale zaproszonych gości i mediów, przeprowadzono także crash test z wykorzystaniem autobusu. Spotkanie zgromadziło ponad 180 osób.
For the fourth time, road infrastructure facilities crash tests were held on 25 June 2014 in Inowrocław. Also a public crash test with the use of a bus was conducted for the first time in Poland, which was observed by guests and the media.
Źródło:
Nowoczesne Budownictwo Inżynieryjne; 2014, 5; 95
1734-6681
Pojawia się w:
Nowoczesne Budownictwo Inżynieryjne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nonlinear method of precrash velocity determination for Mini car class-B-spline tensors products with probabilistic weights
Autorzy:
Mrowicki, Adam
Kubiak, Przemysław
Zakrzewicz, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/263146.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
crash test
EES
precrash velocity
nonlinear
deformation work
Opis:
Following paper introduces the nonlinear method of determining the velocity of a vehicle before the impact-the Equivalent Energy Speed (EES). To estimate the magnitude of EES, the method utilizes the deformation work Wdef of the vehicle, defined by the quotient of deformation coefficient Cs and plastic deformation. Combined with the introduction of the B-spline tensor products and least square approximation with probabilistic weights, method shows promising results.
Źródło:
Archiwum Motoryzacji; 2020, 87, 1; 97-108
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Analytical approach for vehicle body structures behaviour under crash at aspects of overloading and crumple zone length
Autorzy:
Kurpisz, Dariusz
Obst, Maciej
Szymczak, Tadeusz
Wilde, Radosław
Powiązania:
https://bibliotekanauki.pl/articles/2204652.pdf
Data publikacji:
2023
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
crash test
car body stiffness
overload
dynamic force
Opis:
Road safety problem is still topical, especially since the number of vehicles and the volume of traffic are increasing. It is possible to increase the safety of road users through systemic changes in many areas related to transport. The deformation of the vehicle body during an accident has an impact on the loads acting on the passengers. Vehicle body deformation depends on complex parameters, and knowledge of these parameters is essential for designing crumple zones and the accident reconstruction process. Knowledge of the mechanical parameters of the vehicle structure during deformation is also a reference to passenger injury indicators assessment. This paper reports results from the analytical approach for determining the protection level of personal vehicles. The proposed conception is based on the results from the static stiffness characteristic of the Ford Taurus, which gives the possibility of phenomenological and simple body crumple analytical description at a speed equal to 10 km/h, 40 km/h, 56 km/h and 60 km/h, which is an original part of the work. The approach enables us to describe the vehicle crash by focusing on variations of deformation in time, stiffness, vehicle collision time (duration), deceleration and dynamic crash force. Basing on the body stiffness data of the personal vehicle, the length of the deformation zone in the front of the car and the maximum values of force at the crash for a speed of 60 km/h are presented. Results obtained by the authors show that is possible to estimate the overloading level during the crash time of a vehicle based on the stiffness characteristic of the car body. The proposed methodology can be developed and the advantage of the presented procedure is an uncomplicated useful tool for solving complex problems of a vehicle crash.
Źródło:
Acta Mechanica et Automatica; 2023, 17, 1; 68--75
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
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
Artykuł
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
Artykuł
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
Artykuł
Tytuł:
Approach to verification of a roll cage survival space with finite element analysis
Wstępna weryfikacja przestrzeni bezpiecznej klatki bezpieczeństwa przy użyciu metody elementów skończonych
Autorzy:
Peliński, Jakub
Ptak, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/2201479.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Katedra Biomechatroniki
Tematy:
roll cage
FEM
dynamic simulation
crash test
klatka
symulacja dynamiczna
test zderzeniowy
Opis:
In the study, the extensive validation of the original project of roll cage construction designed according to FIA standards is presented. In order to test the impact protection of the vehicle occupant site the verification of survival space was performed. For that purpose, a standardized manikin was utilized. The crashworthiness of the structure was examined by means of Finite Elements discrete model over a number of dynamic explicit simulations. The roll cage was in particularly designed for the passenger car. The important finding from the study is the need for additional side impact energy absorption ability of the cage.
Praca przedstawia badania dotyczące zweryfikowania konstrukcji autorskiego projektu klatki bezpieczeństwa do samochodu osobowego zaprojektowanej zgodnie z obowiązującymi standardami FIA. Zaproponowane rozwiązanie poddano testom dynamicznym w celu zbadania odporności na zdarzenia używając Metody Elementów Skończonych. W celu sprawdzenia przestrzeni bezpiecznej kierowcy użyto standardowego manekina. Uzyskane wyniki sygnalizują, że pomimo zachowania wytycznych ze standardu FIA klatka nie oferuje wystarczającej ochrony kierowcy w przypadku zderzeń bocznych.
Źródło:
Aktualne Problemy Biomechaniki; 2019, 17; 93--100
1898-763X
Pojawia się w:
Aktualne Problemy Biomechaniki
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
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
Artykuł
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
Artykuł
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
Artykuł

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