Description

In this course the student should acquire the basic knowledge in structural dynamics :

• Definition and interest of dynamical computation;
• Classification in terms of lumped, continue and discrete models;
• Lumped models (n dof) : expression of mechanical transfer functions (impedance, apparent mass etc.);
• Application to vibration isolation, default identification, parameter identification;
• Continue models : analytical resolution of beams and plates under dynamical loading;
• Discrete models (experimental and numerical approach);
• Experimental modal analysis of discrete models (Eigen frequency, damping, mode shape);
• Numerical modal analysis of discrete models (implicit and explicit FE approach);
• Numerical simulation of impact under explicit FE codes.

Compétences visées

• To identify a dynamical problem and the relevant resolution method;
• Basic knowlege of mechanical transfer function and understanding of mechanical behaviour;
• To be able to model a mechanical structure with a lumped model;
• Capability to conduct an experimental and a numerical modal analysis of a mechanical structure;
• Simulation of impact phenomenon.