Autor: Duda, S. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Simulation of railway vehicle motion on the straight track
Autorzy:: Duda, S.
Powiązania:: https://bibliotekanauki.pl/articles/246143.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
motion simulation
railway vehicle
Opis:: The article presents the methodologies based on multi-body systems used to analyze the dynamics of rail vehicle in motion in a straight line. Study of the railway vehicles dynamics requires the creation of three mutually independent models: the model of the vehicle, the track model and a model of the wheel - rail contact. A railway vehicle model developed in the multi-body systems convention was an electric locomotive of the EU07symbol The general software model of the wheel - rail contact was programmed and is presented, which allows one in the course ofanalysis to determine the coordinates ofthe contact point between wheel and rail and thus the designation of the wheel forces in contact with the rail. The model ofthe contact forces includes normal force with damping hysteresis and tangential forces determined by the Polach method. Developed models were implemented in Matlab program environment. The numerical simulations were performer for the complete vehicle and a single bogie steady state conditions.
Źródło:: Journal of KONES; 2010, 17, 1; 117-124
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Influence of contribution of biofuels derived from renewable materials in the fuel on the combustion process and toxic compounds emission of compression ignition engine
Autorzy:: Mikulski, M.
Duda, K.
Piętak, A.
Wierzbicki, S.
Powiązania:: https://bibliotekanauki.pl/articles/242841.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: engine
fuel
oil
lubrication
exhaust emission
ecology
Opis:: The use of liquid fuels as an energy source for internal combustion engines is unavoidable nowadays, further consumption increases with the development of industry and economic growth of the country. The abundance of the world in fossil fuels is a highly controversial issue; however, irrespective of forecasts concerning deposits of mineral fuels, undisputable fact is that these are resources, which will deplete. Economic, environmental and legislative issues also impose a limitation of use of fossil fuels. Under the problems associated with fossil fuels, an interesting alternative may be fuel derived from renewable sources. Biodiesel understood as a renewable energy source, used to feed compression ignition engines seem to be the ideal solution to meet energy needs, facing so called economic circulation era. Many research results confirm that combustion of pure biofuels in the currently highly advanced injection systems causes many problems. Different biofuel properties from diesel, such as viscosity or density directly influences on combustion process and emission of toxic components in the exhaust gases. Therefore, biodiesel blends with diesel fuel in all proportions; the combustion of such mixtures carries a number of benefits, from consumption reduction of non-renewable resources to reduction of harmful components in the exhaust gases. In this paper, the effect of doping methyl esters on the process of combustion and exhaust gases emissions in a compression ignition engine feed with mixtures of esters and diesel was examined. Tests were performed on four-cylinder, CI Andoria ACDR engine equipped with Common Rail fuel injection system. In order to investigate the combustion process, cylinder pressure and toxic components in exhaust gases steady state measurements were performed.
Źródło:: Journal of KONES; 2014, 21, 4; 343-351
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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