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Wykorzystanie nowoczesnych materiałów stosowanych w motoryzacji w celu poprawy jakości i bezpieczeństwa użytkowania pojazdów mechanicznych

Niekurzak Mariusz, Kubińska-Jabcoń Ewa

Autobusy : technika, eksploatacja, systemy transportowe

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2019

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R. 20, nr 10-11

47--52

PL

W artykule zostały omówione materiały do produkcji pojazdów, które są najczęściej wykorzystywane. Niezmiennie podstawowym materiałem konstrukcyjnym są stale, szczególnie o zwiększonej wytrzymałości AHSS. Przedstawiono również materiały wykonane ze stopów lekkich, materiały kompozytowe z włókien węglowych w osnowie polimerowej oraz kompozyty w osnowie metalowej. W pracy opisane zostały również nanokompozyty, które są innowacyjnym materiałem, nad którym cały czas trwają badania. Przedstawiono także rodzaje wykorzystywanego szkła oraz możliwości łączenia szyb z innymi technologiami. Zawarto również analizę doboru materiałów przeznaczonych do produkcji pojazdów oraz przeanalizowano wybrane właściwości materiałów najczęściej stosowanych w motoryzacji. Porównano moduł sprężystości, wytrzymałość na rozciąganie, wydłużenie po zerwaniu i gęstości.

EN

The article discusses the materials for the production of vehicles that are most often used. The constant basic construction material is constantly, especially with the increased strength of AHSS. Also presented are materials made of light alloys, composite materials made of carbon fibers in a polymer matrix and composites in a metal matrix. The work also describes nanocomposites that are an innovative material that studies are underway all the time. The types of glass used and the possibilities of combining glass with other technologies are also presented. An analysis of the selection of materials for vehicle production was also included, and selected properties of materials most commonly used in the automotive industry were analyzed. The modulus of elasticity, tensile strength, elongation after rupture and density were compared.

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Jakość powietrza w samochodzie : aktualne trendy w wymaganiach i metodach badań

Brodzik K., Faber J.

Autobusy : technika, eksploatacja, systemy transportowe

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2018

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R. 19, nr 9

41--44

PL

W artykule omówiony został problem jakości powietrza wewnętrznego w kabinach samochodów osobowych. Problematykę przedstawiono w oparciu o dyskusję zjawisk istotnie wpływających na zanieczyszczenie powietrza wewnątrz, głównie nowych, samochodów, metod badawczych stosowanych w motoryzacji w celu oceny obecności tych zanieczyszczeń, a także wskazywania i eliminacji ich źródeł. Podkreślono istotne różnice w działaniach zmierzających do poprawy jakości powietrza we wnętrzach nowych samochodów wprowadzanych na rynek, podejmowanych przez producentów i/lub wymaganych przepisami prawnymi.

EN

In-vehicle air quality in passengers’ cars is discussed in present paper. The discussion is based on factors influencing substantially interior air pollution in vehicles, mainly new ones, on test methods used in automotive sector for air quality assessment, and for elimination of pollution sources. Various approaches to control and to improve in-vehicle air quality was presented with regard to probable directions applied by the automotive industry.

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Material vibration propagation in floor pan

Burdzik R.

Archives of Materials Science and Engineering

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2013

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Vol. 59, nr 1

22--27

EN

Purpose: The article provides a discussion on the studies on material vibration propagation in floor pan of the passenger car. The purpose was to analyse the vibration signals in multiple measuring points. The time-frequency distribution of the signals allows to identification the dominant component of the signal useful for material natural frequency calculation. Design/methodology/approach: The investigations were conducted based on the modified method of experimental and operating modal analysis. The investigation comprised 3 steps: research and measurements of vibration accelerations in a vertical direction perpendicular to the horizontal surface of vehicle in four selected points (impact excitation), analysis of the time courses of the vibration response, signal processing and analysis of the time-frequency distribution of the vibration Findings: The distribution of the signal allows to identify the dominant frequency band. For the floor pan it is low frequencies, between 20 and 40 Hz. In this band the natural frequencies of the floor pan material can be identification Research limitations/implications: Number of the acceleration sensors and impossibility of the impact excitation signal recorded. Originality/value: Application of the modified method of experimental and operating modal analysis for the vehicle frame and car body. Research on the material properties influence on the vehicle vibration research. Comparison of the vibration structure at floor pan under the place of the driver and passengers feet as the vibration propagation path from frame and car body to the human body.

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Analysis of material deformation work measures in determination of a vehicle's collision speed

Burdzik R., Folęga P., Konieczny Ł, Łazarz B., Stanik Z., Warczek J.

Archives of Materials Science and Engineering

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2012

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Vol. 58, nr 1

13--21

EN

Purpose: The article provides a discussion on the studies comprising analytical experiments conducted on material deformation work measures in determination of a vehicle’s collision speed. The purpose was to analyse a deformation profile of cars whose structures included different materials using the EES calculated by different methods. Design/methodology/approach: The investigations were conducted based on comparative analysis of methods for estimating EES for different structural materials used in vehicles. The investigation comprised 3 steps: comparison of test results obtained for frontal narrow-object impacts published by other authors, comparison of research results for frontal solid and immovable narrow-object impacts, comparison of research results for frontal aligned vehicle to vehicle collision. Findings: Multiple materials used in a vehicle structure can affect the proper results of the EES calculated. The results confirm that structural materials influence residual deformation. Research limitations/implications: Crash tests of real cars are very expensive. The experiments were analytical hence the impact speed was declared by the driver. Originality/value: The results obtained imply changes of the EES calculated by different methods and for cars with different structural materials. EES is very commonly used in accident reconstructions and it may constitute the main piece of evidence in court proceedings, therefore it is very important to conduct comparative analysis of methods for estimating EES for proper vehicle structural materials.