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EN
The study presents the design process and analysis of the spatial structure of the Formula Student vehicle. An important issue is such a concept of the vehicle frame that it is possible to design an optimal version of the front and rear axle suspension. Therefore, an important element of the design is the correct geometry of the frame around the mounting points of the front and rear suspension, and it will allow the use of electric vehicle drive. The analysis of the current frame structure has been compared to the previous structures created in the Silesia Automotive Student Science Club. Particular attention was paid to the weight of the element and its strength properties, and these parameters received the most attention.
PL
W opracowaniu przedstawiono proces projektowania oraz analizę struktury przestrzennej pojazdu Formuły Student. Istotną kwestią jest taka koncepcja ramy pojazdu, aby możliwe było zaprojektowanie optymalnej wersji zawieszenia przedniej i tylnej osi. Dlatego ważnym elementem konstrukcji jest odpowiednia geometria ramy wokół punktów mocowania przedniego i tylnego zawieszenia, która pozwoli na wykorzystanie napędu pojazdu elektrycznego. Analizę obecnej konstrukcji ramowej porównano z poprzednimi konstrukcjami powstałymi w Śląskim Studenckim Motoryzacyjnym Kole Naukowym. Szczególną uwagę zwrócono na wagę elementu oraz jego właściwości wytrzymałościowe i tym właśnie parametrom poświęcono najwięcej uwagi.
EN
The aim of the study is to present the changes in the vehicle dynamics that occur in connection with the use of various fuels that power the engine. The article presents the effect of gaseous fuels being mixtures of LPG and BioDME on the flexibility of the vehicle. In previous studies, not much attention has been paid to the problem of changing the performance of the vehicle with the use of various fuels supplying the engine. It is a new approach that allows to determine the advantages and disadvantages of using alternative fuels, including mixtures using BioDME. The study was conducted for a four-cylinder SI engine with a displacement of 1.6 dm3, installed in a passenger vehicle. The mixture of LPG and DME was assessed, and the results compared to the parameters obtained for the LPG-powered engine. Received results have been made it possible to determine changes in the value of the engine flexibility for selected engine loads and various DME shares in the mixture. The thesis that DME can be considered as an activator of the combustion process and may have an impact on the vehicle dynamics is confirmed.
EN
This study is an attempt to determine the control parameters of the control system for gaseous fuels currently used for driving vehicles. It presents the selected dynamic parameters of the car obtained when fueling the engine with petroleum-based LPG. This paper attempts to determine the optimal timing advance of the gas-air mixture and the efficiency of its processing in the drive system of the tested vehicle driven by a four-cylinder engine with a 1.6 dm. More so, this article includes an analysis of the influence of the optimised power charts of the engine on the dynamics of the motion of a motor vehicle running on gaseous fuel. To present changes in the dynamics of movement, indicators and parameters determining changes in the dynamics of vehicle movement, such as dynamic coefficient, acceleration and flexibility were used. Through this analysis, it is possible to verify the optimised power and torque waveform and determine whether the vehicle dynamics improved.
4
Content available DME as a fuel for SI engines cars
EN
The article presents an analysis of the possibility of using DME fuel to power internal combustion engines. The possibilities of using DME as an engine fuel in relation to world and European achievements have been widely discussed. Moreover, the preliminary results of the tests determining the possibility of using the DME-LPG mixture to power the diesel engine are presented. The research consisted in determining the influence of the DME-LPG mixture on the power and torque of the engine at various loads. The changes in the temperature of the exhaust gases were also determined in relation to the different proportions of DME in the mixture.
PL
W artykule przedstawiono analizę możliwości zastosowania paliwa DME do zasilania silników spalinowych. Przeprowadzono szerokie omówienie możliwości zastosowania DME jako paliwa silnikowego w odniesieniu do osiągnięć światowych i europejskich. Ponadto przedstawiono wstępne wyniki badań określających możliwość zastosowania mieszaniny DME - LPG do zasilania silnika ZI. Badania polegały na określeniu wpływu mieszaniny DME - LPG na moc i moment obrotowy silnika przy różnych jego obciążeniach. Określono także zmiany temperatury gazów wylotowych w odniesieniu do różnych udziałów DME w mieszaninie.
5
Content available Aerodynamics package for formula student car WT-02
EN
This paper is a summary of the design and workmanship of the aero package vehicle Formula Student. Simulation research projects of the aerodynamic system were conducted. The article proposes different variants of the aero wings and conducted simulation studies of construction. The aerodynamics system impact on strength and reliability of selected models was determined.
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