Wszystkie pola: Niezgoda, T. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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: 2.

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: 3.

Tytuł:: Investigation of road barriers on their abilities to absorb energy of hitting
Autorzy:: Niezgoda, T.
Kiczko, A.
Barnat, W.
Dziewulski, P.
Powiązania:: https://bibliotekanauki.pl/articles/244885.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: numerical simulations
validation
road transport
road barriers
passive safety
Opis:: In the article, the results of tests and numerical computations of road infrastructure elements-protective barriers are presented. On the base of carried out tests (in laboratory conditions) the forms of deformations of each of elements and their assemblies, components of road protective barriers, were described. The determination of stiffness of each type of barriers, at the moment of their destruction, enabled to elaborate the methodology of the construction of numerical models and numerical simulations of the process of the barrier destruction. The absorption of energy of three subassemblies of road barriers, consisting of the W-beam guard rail section of 0.7 m, a post and SP01, SP05 and SP09 mounting hardware, was experimentally determined. From the comparison, the experimental results with the numerical simulation ones it is seen that proposed numerical models with a good accuracy present the behaviour of the real elements of barriers. Investigations enabled to estimate the distribution of absorbed energy of each constructional elements of barriers at the moment of their destruction. Further step in the investigation is to be an attempt to modify the construction, paying special attention to increasing its ability to absorb energy of collision. On this base, the protective road barrier system can be enriched with elements absorbing energy. Great energy absorbing abilities have elements which are subjected to progressive destruction e.g. by plastic deformation or delamination of elements produced from relatively cheap fiberglass reinforced plastic composites. The elaborated methodology of numerical simulation with the use of LS-DYNA software enables the essential shortening of the test period of worked out solutions.
Źródło:: Journal of KONES; 2008, 15, 4; 383-391
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Experimental-numerical analysis of steel - foam energy - absorbing panels for road barriers modernization
Autorzy:: Niezgoda, T.
Ochelski, S.
Klasztorny, M.
Barnat, W.
Kiczko, A.
Dziewulski, P.
Powiązania:: https://bibliotekanauki.pl/articles/246007.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: numerical simulations
road transport
road barriers
passive safety
Opis:: The works on steel -foam energy-absorbing structures for the road barrier W-beam guardrail were carried out because of the necessity of increasing the passive safety of road barriers [1-5]. A road barrier guardrail is made of steel sections. These types of sections are characterized by good strain properties, although their energy-absorbing abilities and possibilities for "softer" vehicle impact energy are unsatisfactory. In order to increase energy-absorption on the road barrier guardrail additional tin-foam sections were used. Experimental tests on the modifled road barrier guardrail were carried out on a testing machine INSTRON at the Faculty of Mechanics and Applied Informatics of the Military Academy of Technology. Two meters long W-beam guardrail was investigated in a three point bending test, perpendicularly and under the angle of 20°. As a result of the experimental research diagrams of dependence of bending force on displacement were obtained. On the basis of aforementioned diagrams the energy that was absorbed by individual road barrier elements: tin coating, foam insert and steel guardrail, was estimated. Obtained results of the experimental research were also compared with the results of the numerical simulation of the finite elements method in LS-DYNA system.
Źródło:: Journal of KONES; 2010, 17, 1; 309-315
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Collision detection algorithms in the ecall system
Autorzy:: Kamiński, T.
Niezgoda, M.
Kruszewski, M.
Grzeszczyk, R
Drop, T.
Filipek, P.
Powiązania:: https://bibliotekanauki.pl/articles/241795.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: road transport
emergency response
e-Call
112
road safety
Opis:: The article describes some algorithms for collision detection used in modern cars airbag systems. While controlling the activation of airbags and other passive safety systems, installed in modern vehicles, the algorithms must operate in the early stage of accident, because for operating effectively it is necessary to run control systems early enough, for example filling airbags before the body of the driver or passenger reaches the zone of airbag. These algorithms could be applied into the on-board eCall modules, but they would require calibration. Detection of the collision that activates eCall system must be made on the basis of measurable signals or observable events, which intensity can be relatively clearly linked to the probability serious injury of the driver and the passengers’ of the vehicle. A table summary presented in this article contains a description of the collision detection algorithm along with a brief description of the method of detection and description of the used methodology. A frequently used method is to evaluate the gradient of the change of speed - the parameter ..V, or its combinations with different parameters, such as the derivative of acceleration, displacement, and energy of the collision. Each of the algorithms has been briefly described. The whole of article is summarized with the conclusions arising from its content.
Źródło:: Journal of KONES; 2012, 19, 4; 267-274
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Advanced car driving simulator - As 1200-6
Autorzy:: Kamiński, T.
Niezgoda, M.
Gacparska, J.
Grzeszczyk, R.
Filipek, P.
Powiązania:: https://bibliotekanauki.pl/articles/247245.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: road transport
driving simulator
six-axis motion platform
Opis:: Article describes advanced high class research simulator of passenger car with complete inside equipment including adjustable driver seat, steering wheel, dashboard, gear selector, accelerator pedal, brake and clutch, parking brake etc. Simulator is based on six axis motion platform and original vehicle cabin adapted from Opel Astra IV body, purchased by Motor Transport Institute. Furthermore, simulator is equipped with dedicated devices which allow conducting research on driver's behaviour which is not possible to conduct in real traffic situations due to the safety issues. Researcher can record parameters related to driver's activities, which could be next analyzed and combined with data received from other external instruments. AS1200-6 can be used also for drivers training in dangerous conditions e.g. learning how to react to the abnormal behaviour of other road users or pedestrians and learning how to drive in different weather conditions. This paper gives an overview of the hardware and software components as well as of the research possibilities that are aimed at making transportation safe and clean. The results of the research are very important especially for the road safety. The simulator enables simulation of dangerous traffic situation in the safe virtual environment.
Źródło:: Journal of KONES; 2011, 18, 4; 173-178
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Telematic security system for cash transport vehicle
Autorzy:: Kamiński, T.
Kruszewski, M.
Niezgoda, M.
Gacparska-Stołek, J.
Powiązania:: https://bibliotekanauki.pl/articles/245531.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
road transport
simulation
combustion engines
air pollution
environmental protection
Opis:: Paper describes security system mounted in the cash transport vehicle that was developed in "Pancermet" project. Consortium consists in addition to the Motor Transport Institute, another nine entities which represent science, vehicle producers and military. The system fulfils the new legal requirements in this area, and consists of the inside/outside video monitoring module and selective door locking mechanism. Every device was designed in accordance with safety and security principles. The video monitoring module includes four video cameras, audiovideo recorder and smoke detector. Selective door lock module cooperates with on-board CAN network that allows selective doors locking with usage of the dedicated touch panel installed on the vehicle's dashboard. The module continually monitors the CAN network which allows also to gain information about opening and closing of every door and status of the lock. Information at touch panel screen, is continuously refreshed, allowing keeping control over all doors, for driver and transporting manager. Article describes also general description about communication with door locks in CAN network and problems encountered during modules development and their solutions. In article there were presented used devices which allows preparing the system for cash transport vehicle.
Źródło:: Journal of KONES; 2011, 18, 3; 149-154
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Effective methods for drivers research with use of a driving simulator
Autorzy:: Niezgoda, M.
Kamiński, T.
Ucińska, M.
Kruszewski, M.
Powiązania:: https://bibliotekanauki.pl/articles/246065.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
road transport
driver behaviour
driving simulator
Opis:: Paper describes possibilities to use advanced vehicles simulator combined with additional supporting research devices for measuring drivers' behaviour. Analyzing drivers' behaviour with driving simulators is a rapidly growing field of research, which also demands the interdisciplinary approach from different science disciplines like psychology and simulation engineering. Paper presents modern research methods in transport safety researches and devices that are used to understand better driver's behaviour inside the driving simulator, e.g. Vienna Test System and mobile eye-tracker. Paper also explains a problem of simulator sickness that frequently occurs during the studies inside the driving simulators. Main advantage of using simulators is possibility to achieve full standardization of research conditions. Visualization system based on set of four projectors and cylindrical screen with 200 degrees of vision range, which allows to completely cover the range of sight of the driver to enhance driving reality. The view in the car mirrors is presented on three LCD screens which sizes are very close to the mirrors used in real car mirrors. The scenery generated by computer simulation is moving according to the car speed in the simulation. Similarly to the passenger car simulator, simulator of truck and bus is build based on visualization system which is composed of cylindrical screen, with two hundred degrees of horizontal range of view. Simulator gives the ability to trace functioning of few different types of vehicles.
Źródło:: Journal of KONES; 2011, 18, 3; 309-316
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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