Academy of Technical and
Art Applied Studies Belgrade

Train Traction Course code: 117005 | 5 ECTS credits

Basic information
Level of Studies: Undergraduate applied studies
Year of Study: 3
Semester: 5
Requirements:
Goal: Acquiring appropriate theoretical and practical knowledge about train movement and the resistance to the movement, motive powered vehicle (rail traction vehicles and locomotives), their main components (running gears, power traction systems, traction drives, and braking systems), and their major design characteristics and parameters discussed in terms of their application and proper usage in train dynamic studies, calculation of optimal values of a train mass, travel time, energy consumption, presentation of values on diagrams.
Outcome: Students will be able to independently perform calculations in the field of train traction, to reduce the values of the longitudinal section of a track, to determine values of resistance to the train movement, to determine the optimal value of a train mass, to calculate travel time and energy consumption of a train on a given line, to analyse the process of train traction, and make planning and management decisions in the field of train traction.
Contents of the course
Theoretical instruction:
  1. The definition of a train, train movement, train traction, train traction theory, train dynamics, and areas of application
  2. Train movement forces, and train resistance forces (vehicle, track, grade, curve, acceleration, wind, etc.)
  3. Adhesion, Newton`s Laws, the definition of tractive effort.
  4. Types of railway traction rolling stock and their classification.
  5. Motive power energy principles (electric traction, diesel traction, gas turbine traction, steam traction, hybrid traction).
  6. Traction systems and their classification (DC traction power, AC traction power, hybrid traction power).
  7. Classification of main rail traction vehicle components
  8. Main apparatus and methods to determine the transfer of power from the motor unit to the driven wheels, torque converter (mechanic, hydraulic, electrohydraulic railway vehicle drive, direct-drive electric motor for wheelset).
  9. Tractive effort/speed characteristics
  10. Braking effort, brake systems and their components (air brake systems, dynamic brake systems, electromagnetic brakes, and rail brakes).
  11. Methods for train travel time calculations.
  12. Calculation of power consumption
Practical instruction (Problem solving sessions/Lab work/Practical training):
  1. Practical instruction is followed by a lecture program. 1. Calculation of values of train traction. 2. Application of methods for calculation of travel time of a train on a given railway line.
Textbooks and References
  1. Milanović, H
  2. Milanović, H
  3. Kuzmič, V.D., Rudnev, V:s:, Frenkel, S.R., Teorii Lokomotivnoi Trgi, Moskva, 2005, ISBN 5-89035-265-2
  4. Milićević, Z., Vuča Vozova, ŽELNID, Beograd, 2001
  5. Mandić, D., Zbirka zadataka iz vuče vozova, Saobraćajni fakultet, Beograd, 2002
Number of active classes (weekly)
Lectures: 2
Practical classes: 2
Other types of classes: 0
Grading (maximum number of points: 100)
Pre-exam obligations
Points
activities during lectures
0
activities on practial excersises
0
seminary work
0
colloquium
0
Final exam
Points
Written exam
0
Oral exam
0