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One of the Scenarios for Reduction the Emission of Pollutants from Motor Vehicle in the Territory of the Republic of Kosovo

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Journal of Mechanics Engineering and Automation 2012年第5期2卷 321-326页

作者： bashkim baxhaku Hajredin Tytyri Shpetim Lajqi Department of Construction and Design Faculty of Mechanical Engineering University of Prishtina Prishtina 10 000 Republic of Kosovo

Together with development of the industry, there is present a continuous increase number of motor vehicles that contributes to the growth of the emission of pollutants. This is the main reason that during eighties of the last century, a special attention has started to be paid on pollution emissions from vehicles. It is important to note that most of the current emissions are formed directly and are present in urban areas. The aim of this research was to determine the emission of pollutants in the territory of the Republic of Kosovo, when circulates more than 380,000 motor vehicles. Taking into consideration the daily traffic jam, and the fact that gasoline engines are responsible for most emissions of CO, while diesel engines for NOx emission, the conclusion arises that there is necessary a special dedication to the emission of pollutants and to the definition of the measures to reduce or control them. Based on the performed tests and realistic assessment of the overall situation in the Republic of Kosovo, the current situation on the amount of pollution was compared with development countries in the region as a matter in the research. The results obtained, suggest to the most important causes that increase pollutant emission from motor vehicles and offer actions to keep the same level or to reduce them.

关键词： Pollution emissions ecology urban environment motor vehicles.

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Influences of the Suspension Parameters on the Vehicle Suspension Performance for a Terrain Vehicle

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Journal of Mechanics Engineering and Automation 2012年第9期2卷 550-554页

作者： Shpetim Lajqi Stanislav Pehan Naser Lajqi bashkim baxhaku Besim Ymeri Department of Construction & Design Faculty of Mechanical Engineering University of Prishtina Prishtina 10000 Kosovo Department of Construction & Design Faculty of Mechanical Engineering University of Maribor Maribor 2000 Slovenia

This paper describes an effective methodology for evaluation of the suspension parameters intended to be used for a terrain vehicle. The objective of this approach is to make quick analyses of the sensitivity of the vehicle suspension parameters. For the purpose of developing such a methodology, a mathematical modeling of a quarter vehicles suspension system is developed. Sensitive analysis of the suspension parameters is performed by employing the standard deviation of the vehicle body acceleration, dynamic tire load, and suspension travel. Sensitivity analysis results have shown that the spring stiffness, damping coefficient, tire stiffness and sprung mass have substantial influence on the ride comfort and road holding, while un-sprung mass on the other side has much lower impact in performance of the vehicle suspension system.

关键词： Terrain vehicle suspension parameters ride comfort road holding suspension travel.

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