Essays about: "Freight train"

Showing result 21 - 25 of 25 essays containing the words Freight train.

1. 21. Online Identification of Running Resistance and Available Adhesion of Trains

   University essay from Fordonssystem

   Author : Jesper Ahlberg; Esbjörn Blomquist; [2011]
   Keywords : running resistance; extended kalman filter; ekf; parameter estimation; acceleration estimation; adaptive models; adhesion; freight trains; numerical differentiation; gångmotstånd; extended kalman filter; ekf; parameterskattning; accelerationsskattning; adaptiva modeller; adhesion; godståg; numerisk derivering;

   Abstract : Two important physical aspects that determine the performance of a running train are the total running resistance that acts on the whole train moving forward, and the available adhesion (utilizable wheel-rail-friction) for propulsion and breaking. Using the measured and available signals, online identification of the current running resistance and available adhesion and also prediction of future values for a distance ahead of the train, is desired. READ MORE

3. 22. Spatial, temporal and size distribution of freight train time delay in Sweden.

   University essay from KTH/Trafik och logistik

   Author : Farzad Fakhraei Roudsari; [2011]
   Keywords : ;

   Abstract : Delays and cancelled trains are often described as a problem for companies that transport goods by rail. Lack of reliability of freight trains is seen as a disadvantage compared to other modes. To date there has been limited quantitative information in Sweden about the size and the structure of the problem of trains not arriving in time. READ MORE

4. 23. Train-Bridge Interaction on Freight Railway Lines

   University essay from KTH/Bro- och stålbyggnad

   Author : Davide Martino; [2011]
   Keywords : train-bridge interaction; dynamics; acceleration; freight train models; track models;

   Abstract : This study investigates the dynamic response of a railway bridge under train passage. Three load models designed around the Swedish Steel Arrow freight train are tested and compared. A series of Concentrated Forces, a succession of single degree of freedom Sprung-Masses, and a sequence of complex multi-degree of freedom Train Wagons. READ MORE

5. 24. Transportation through the Scandria Corridor : A sustainable transport concept between the Adriatic Sea and Scandinavia

   University essay from Logistik

   Author : John Landstedt; Erik Karlsson; [2010]
   Keywords : ;

   Abstract : The Scandria Corridor is the shortest way between the Adriatic Sea and the Baltic Sea and stretches from the harbors in the Adriatic Sea to Scandinavia, with branches to Stockholm and Oslo. By offering the shortest route it should be an area in focus for transporting goods. READ MORE

6. 25. Strategy, performance improvement, combined rail-truck transport

   University essay from Blekinge Tekniska Högskola/Avdelningen för för interaktion och systemdesign

   Author : Patrick Tatambunkah Muh; [2007]
   Keywords : strategy; performance improvement; combined rail-truck transport;

   Abstract : With increasing trade, freight transport demand has grown tremendously and as sustainability has become an essential concern of our globe, interests in improving and achieving effective and efficient rail freight transport have become an essential needs and focus of the 21st century. However, achieving an improved rail freight transport service and an increased market share in a competitive environment is rather complex in several aspects as freight trains would need to operate with principles and characteristics resembling those of passenger’s traffic in order to attract new type of goods. READ MORE