| Abstract [eng] |
The aim of this research work is train motion in Kaunas tunnel. At the moment of the research we observe air resistance influence in tunnel by changing trains geometrical parameters. Give recommendations to Kaunas tunnel development. This research work consists of 4 chapters: Question Analysis, Analyze of foreigner authors works, Conclusions. The first chapter describes aero dynamical resistance reasons. The second chapter describes train motions varying by changing geometrical parameters in tunnel. Aero dynamical resistance estimate methods and influence to train cargo, passenger comfort. The third chapter describes varying geometrical train nose parts influence when train move in Kaunas tunnel. Do research, measurements and analyze results. The fourth chapter describes conclusions, according to results, measurements and literature. There are 7 tables and 56 pictures presented in the research work. Literature of different languages: Lithuanian, English, Russian, Polish, Russian was used. |
