LEARNING OUTCOMES

Course’s purpose is to focus on mechanical’s aspects of railway vehicles. Important topics about dynamical aspects of trains are also studied in depth.

AIMS AND LEARNING OUTCOMES

General aspect and railway mechanic fundamentals. Classification: introductive concepts about trains. Traction systems. Railway carriage. Introduction of adhesion general problems. Wheel, axles and rails features. Analysis of contact forces (wheelrail). Guide function of railway wheel. Trains’ resistance to motion and resistance measures. Curving motion dynamic and external rail superelevation. Equivalent mass of vehicles (definition of determination’s methods). Trains’ braking: description of brakes typology in use and specific braking problems. Railway’s seat. Equipment. Carriage’s dynamic. Line’s spectra. Electrical traction and through internal combustion engines. Transmission typology in railway applications. Torsional oscillation phenomena caused by motorization. Passenger’s comfort (acoustic and vibrational). Dynamic disequilibrium caused by mounted halls. Life analysis of railway lines. Railway activity. High speed. At the conclusion of the course the student is expected to have a good knowledge referring to the fundamental problems about railway mechanic.

PREREQUISITES

Course needs basis acquaintances of Mechanics, and mostly it’s needed acquaintance of contents of Physics, Maths and Applied Mechanics courses.

TEACHING METHODS

Lectures

SYLLABUS/CONTENT

General aspect and railway mechanic fundamentals. Classification: introductive concepts about trains. Traction systems. Railway carriage. Introduction of adhesion general problems. Wheel, axles and rails features. Analysis of contact forces (wheelrail). Guide function of railway wheel. Trains’ resistance to motion and resistance measures. Curving motion dynamic and external rail superelevation. Equivalent mass of vehicles (definition of determination’s methods). Trains’ braking: description of brakes typology in use and specific braking problems. Railway’s seat. Equipment. Carriage’s dynamic. Line’s spectra. Electrical traction and through internal combustion engines. Transmission typology in railway applications. Torsional oscillation phenomena caused by motorization. Passenger’s comfort (acoustic and vibrational). Dynamic disequilibrium caused by mounted halls. Life analysis of railway lines. Railway activity. High speed. At the conclusion of the course the student is expected to have a good knowledge referring to the fundamental problems about railway mechanic.

RECOMMENDED READING/BIBLIOGRAPHY

- Didactic material provided by the teacher

C. Esveld “Modern Railway Track” - MRT Productions, 2001

E. Stagni "Meccanica della locomozione", Patron, Bologna, 1980.

R. Panagin "La dinamica del veicolo ferroviario", Levrotto & Bella, Torino, 1990.

G. Tesoriere “Strade Ferrovie Aeroporti Vol. 1” – UTET, Torino, 1980.