Vibrations des systèmes discretsGénie Mécanique 2 (GSI)
Vibrations of discrete systems
Teaching unit Mechanical Engineering 2 · GI.SIS6.GM2 | EC Code VibSysDis
8ECTS (EU)
1Coefficient
13:20Hours
Séquencement
Learning objectives
- Model mechanical oscillating systems of mass-spring-shock absorbers.
Prerequisites
| Module | Teaching unit | Semester |
|---|---|---|
| Mathematics 1.1 | Basic Sciences 1 | S1 |
| Mathematics 1.2 | Basic Sciences 1 | S1 |
| Point Mechanics | Applied and Industrial Sciences 1 | S1 |
| Continuum Mechanics | Mechanical Engineering 1 | S5 |
Program
The course is divided into two chapters:
1. Systems with a degree of freedom
1.1 Free vibrations: conservative systems, dissipative systems.
1.2 Harmonic forced response: force-imposed excitement, motion-driven excitement of supports, notions of periodic excitement.
1.3 Transitional response: forced force excitation, motion excitation of supports.
2. Multi-degree systems of freedom
2.1 Two-degree systems of freedom: free vibration and vibration modes, harmonised forced response.
2.2 Systems with several degrees of freedom: vibration modes, principle of modal decomposition, case of dissipative systems, digression on the notion of excitation by motion of supports.
Assessment
Table examination with a hand-written sheet A4 and a licensed college-type calculator
References
- S. Timoshenko and D. H. Young and W. Weaver (1990), Vibration Problem in Engineering, John Wiley and Sons, Inc.
- K.G. Graff (1991), Wave Motion in Elastic Solids, London, Oxford University Press.
- Mr. Géradin and D. Rixen (1994), Mechanical Vibrations: Theory and Application to Structural Dynamics, Paris, Wiley.
- G. Kelly (2000), Mechanical Vibrations, Theory and Applications, 2nd edition, McGraw-Hill.
- G. Duffy (2015), Green
Skills
2| Ref. | Verb | Description | Level |
|---|---|---|---|
| C1_2 | solve | Establish and resolve the equations of motion from a 1DDL mass-spring system, possibly taking into account damping and harmonic excitation | 2 |
| C1_2 | solve | For a discrete multi-DDL system, know how to establish and solve free and forced motion equations directly or through a modal approach | 3 |