5.00 credits
30.0 h + 30.0 h
Q1
Teacher(s)
Fisette Paul;
Language
English
Main themes
Fundamental theoretical notions in view of studying vehicle dynamics For the two families of vehicles (road and railway): - Historical survey of the technology ("dynamics-oriented") - Description and analysis of the typical dynamical phenomena - "Macro" modelling of vehicles: sprung and unsprung masses approach - Specific models related to the wheel/road, wheel/rail contact - Model-based illustration of typical dynamical behaviours and parameter sensitivity analysis "Specific vehicle" dynamics (road vehicles : bicycle, motorcycle, truck and trailer ; railway vehicles: metro with combined wheel/rail and tire, Maglev) and/or particular situations (vehicles on uneven terrain or loose ground, tracked vehicles, ') Multiphysics modelling of vehicles: application to different cases, such as - Pneumatic suspensions in railway vehicles, - Hydraulic suspensions in cars, - Semi-active suspensions in cars. Vehicle dynamics : the "industrial" point of view (railway and road vehicles)
Learning outcomes
At the end of this learning unit, the student is able to : | |
| 1 |
In consideration of the reference table AA of the program "Masters degree in Mechanical Engineering", this course contributes to the development, to the acquisition and to the evaluation of the following experiences of learning:
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Content
1. Introduction : Fundamental concepts of kinematics, multibody dynamics, vibration and numerical methods in view of analysis of vehicle stability, handling and comfort
2. Railway vehicles - Technology : carbodies, bogies, primary and secondary suspensions, track, track irregularities, vehicle morphology (tramway, metro, high-speed trains, etc.), main concepts: load, Y/Q ratio, critical speeds
3. Railway vehicles - "Macro" models: carbodies/bogies/wheelset/wheel/rail contact simplified model, simplified wheelset model (stability) and vertical model (comfort)
4. Railway vehicles - specific models: wheelset-track 3D model, independent wheel-rail model, wheel-flange second contact, curved track model, primary and secondary suspensions models, etc.
5. Railway vehicles - specific models: (cont.)
6. Railway vehicles - use and interpretation of models : model versus experiment, parameter sensitivity analyses, model-based understanding of the fundamental dynamical phenomena
7. Road vehicles - Technology: suspensions (classification), role of the tire, anti-roll bar system, etc., main concepts: struts, car roll centre, torsion bars, suspension typical motions
8. Road vehicles - "Macro" models : sprung and unsprung masses, geometrical roll centre computation, Ackermann steering geometry
9. Road vehicles - specific models : 3D kinematics of suspensions : McPherson strut, multi-link suspensions, etc., torsion and anti-roll systems, tire/ground modelling : description of the various models (lateral, longitudinal, vertical, combined) and model-based comparison ; flexible modelling of carbodies
10. Road vehicles - specific models: (cont.)
11. Road vehicles - use and interpretation of models : model versus experiment, parameter sensitivity analyses, model-based understanding of fundamental dynamical phenomena (understeering/oversteering, entry curving, steady state curving, comfort criteria with different road profile characteristics
12. Specific vehicles - Technology and Modelling : bicycles and motorcycles (stability, gyroscopic effects, wheel/ground contact models, '), and/or trucks and trailers (lateral stability, jacknifing), and/or tracked vehicles on loose and uneven terrains (geometrical models, constitutive models, ')
13. Industrial Seminar on Railway systems (Vehicles, Infrastructure)
14. Industrial Seminar on Road vehicles (Design, Dynamics)
2. Railway vehicles - Technology : carbodies, bogies, primary and secondary suspensions, track, track irregularities, vehicle morphology (tramway, metro, high-speed trains, etc.), main concepts: load, Y/Q ratio, critical speeds
3. Railway vehicles - "Macro" models: carbodies/bogies/wheelset/wheel/rail contact simplified model, simplified wheelset model (stability) and vertical model (comfort)
4. Railway vehicles - specific models: wheelset-track 3D model, independent wheel-rail model, wheel-flange second contact, curved track model, primary and secondary suspensions models, etc.
5. Railway vehicles - specific models: (cont.)
6. Railway vehicles - use and interpretation of models : model versus experiment, parameter sensitivity analyses, model-based understanding of the fundamental dynamical phenomena
7. Road vehicles - Technology: suspensions (classification), role of the tire, anti-roll bar system, etc., main concepts: struts, car roll centre, torsion bars, suspension typical motions
8. Road vehicles - "Macro" models : sprung and unsprung masses, geometrical roll centre computation, Ackermann steering geometry
9. Road vehicles - specific models : 3D kinematics of suspensions : McPherson strut, multi-link suspensions, etc., torsion and anti-roll systems, tire/ground modelling : description of the various models (lateral, longitudinal, vertical, combined) and model-based comparison ; flexible modelling of carbodies
10. Road vehicles - specific models: (cont.)
11. Road vehicles - use and interpretation of models : model versus experiment, parameter sensitivity analyses, model-based understanding of fundamental dynamical phenomena (understeering/oversteering, entry curving, steady state curving, comfort criteria with different road profile characteristics
12. Specific vehicles - Technology and Modelling : bicycles and motorcycles (stability, gyroscopic effects, wheel/ground contact models, '), and/or trucks and trailers (lateral stability, jacknifing), and/or tracked vehicles on loose and uneven terrains (geometrical models, constitutive models, ')
13. Industrial Seminar on Railway systems (Vehicles, Infrastructure)
14. Industrial Seminar on Road vehicles (Design, Dynamics)
Teaching methods
- 13 or 14 theoretical lectures/industrial seminars
- 1 project in vehicle dynamics: bibliographic or modeling
Evaluation methods
The evaluation is an open book oral exam:
- The theoretical course counts for 60% of the points
- The project counts for 40% of the points
Other information
Industrial seminars given by experts in the field are organized every year.
Online resources
Faculty or entity
MECA
