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Scheda Riassuntiva
Anno Accademico 2017/2018
Scuola Scuola di Ingegneria Industriale e dell'Informazione
Insegnamento 051140 - RAIL VEHICLE DYNAMICS AND TRAIN-TRACK INTERACTION
Docente Bruni Stefano
Cfu 6.00 Tipo insegnamento Monodisciplinare

Corso di Studi Codice Piano di Studio preventivamente approvato Da (compreso) A (escluso) Insegnamento
Ing Ind - Inf (Mag.)(ord. 270) - BV (483) MECHANICAL ENGINEERING - INGEGNERIA MECCANICA*AZZZZ051140 - RAIL VEHICLE DYNAMICS AND TRAIN-TRACK INTERACTION

Programma dettagliato e risultati di apprendimento attesi

Aims and learning outcomes

Objective of the course is to is to introduce the principles of rail vehicle dynamics and of the interaction between rail vehicle and infrastructure, considering the main dynamical aspects and their influence on the damages on the main contacting elements.

Syllabus

1. Rail vehicle modelling:

1.1 Detailed rail vehicle structure

1.2 Wheel-rail contact forces: definition of creepages, geometrical aspects of wheel-rail contact, models for contact forces

1.3 Modelling of suspension components.

1.4. Semi analytical models: wheelset on tangent track and curve, bogie on tangent track and curve: dynamics and steady state condition.

1.5 Numerical models: multi-body simulation of rail vehicle dynamics.

2. Track and infrastructure modelling:

2.1 Track typologies for standard lines, high speed lines and urban and metro lines.

2.2 Modelling of the main track elements: rail, fastenings, sleeper, slab, elastomeric elements.

2.3 Train-track-structure interaction: time domain and frequency domain models for train-track and train-bridge/tunnel interaction.

3. Damage mechanism on wheel and rail:

3.1 Wear and RCF on wheel and rail rolling surfaces

3.2 Fatigue and crack propagation in wheelset axle

3.3 Fatigue in rail welded joints.

3.4 Effects of environmental condition: temperature, corrosion.

3.5 Outcomes on maintenance: damage detection techniques, planning of checking intervals.

4. Environmental impact of railway transportation:

4.1 Ground borne vibration and air borne noise: phenomenological description, relationship with wheel-rail contact forces and wheel-rail dynamics.

4.2 Basic modelling approaches, measurement techniques and data analysis and processing.

 

Prerequisites

Knowledge in the dynamics of mechanical systems, structural mechanics and strength of materials


Note Sulla Modalità di valutazione

Students will have to bring their notes of the training and laboratory sessions to the final exam. The final exam consists of a oral exam on the topics of the course and a discussion of the work done during the laboratory hours.


Bibliografia
Risorsa bibliografica obbligatoriaKnothe Klaus, Stichel Sebastian, Rail Vehicle Dynamics , Editore: Springer, Anno edizione: 2017, ISBN: 978-3-319-45374-3
Risorsa bibliografica obbligatoriaSimon Iwnicki (ed.), Handbook of Railway Vehicle Dynamics, Editore: CRC Press, Anno edizione: 2006, ISBN: 9780849333217 http://www.crcnetbase.com/isbn/9781420004892
Risorsa bibliografica obbligatoriaAhmed A. Shabana, Khaled E. Zaazaa, Hiroyuki Sugiyama, Railroad Vehicle Dynamics: A Computational Approach, Editore: CRC Press, ISBN: 9781420045819 http://www.crcnetbase.com/isbn/9781420045857
Risorsa bibliografica facoltativaFederico Cheli and Giorgio Diana, Advanced Dynamics of Mechanical Systems, Editore: Springer International Publishing, Anno edizione: 2015, ISBN: 978-3-319-18199-8

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Mix Forme Didattiche
Tipo Forma Didattica Ore didattiche
lezione
44.0
esercitazione
4.0
laboratorio informatico
16.0
laboratorio sperimentale
6.0
progetto
0.0
laboratorio di progetto
0.0

Informazioni in lingua inglese a supporto dell'internazionalizzazione
Insegnamento erogato in lingua Inglese
Disponibilità di materiale didattico/slides in lingua inglese
Disponibilità di libri di testo/bibliografia in lingua inglese
Possibilità di sostenere l'esame in lingua inglese
Disponibilità di supporto didattico in lingua inglese
schedaincarico v. 1.7.2 / 1.7.2
Area Servizi ICT
05/07/2022