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Vibrations des systèmes discretsGénie Mécanique 2 (GSI)

FISE GSI Semester 6 Common Core Machine translation

Vibrations of discrete systems

Teaching unit Mechanical Engineering 2 · GI.SIS6.GM2  |  EC Code VibSysDis
8ECTS (EU)
1Coefficient
13:20Hours

Séquencement

C TD C TD C TD C TD C TD C TD TD TD TD

Learning objectives

  • Model mechanical oscillating systems of mass-spring-shock absorbers.

Prerequisites

ModuleTeaching unitSemester
Mathematics 1.1Basic Sciences 1S1
Mathematics 1.2Basic Sciences 1S1
Point MechanicsApplied and Industrial Sciences 1S1
Continuum MechanicsMechanical Engineering 1S5

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

  1. S. Timoshenko and D. H. Young and W. Weaver (1990), Vibration Problem in Engineering, John Wiley and Sons, Inc.
  2. K.G. Graff (1991), Wave Motion in Elastic Solids, London, Oxford University Press.
  3. Mr. Géradin and D. Rixen (1994), Mechanical Vibrations: Theory and Application to Structural Dynamics, Paris, Wiley.
  4. G. Kelly (2000), Mechanical Vibrations, Theory and Applications, 2nd edition, McGraw-Hill.
  5. G. Duffy (2015), Green

Skills

2
Ref.VerbDescriptionLevel
C1_2solveEstablish and resolve the equations of motion from a 1DDL mass-spring system, possibly taking into account damping and harmonic excitation2
C1_2solveFor a discrete multi-DDL system, know how to establish and solve free and forced motion equations directly or through a modal approach3