Fundamentals of structural dynamic analysis

Goals

The objectives of the training Fundamentals of structural dynamic analysis :

- Simulate a test by integrating the fundamentals of dynamic calculation
- Know how to modify and recalibrate the model based on test results
- Take into account the constraints and requirements of a test programme in a numerical simulation

The aim of this training course is to learn how to use:

• The concepts of vibration mechanics in a 1 DDL or n DDL system, as well as natural modes


• The finite element calculation method


• Modal recalibration


• The principle of shock simulation


• The principle of random excitation simulation

Program

1/ Define the structure of a system with 1 or n DDLs
Characterise a system, identify types of excitation
Define transfer functions
Determine the natural modes of an n DDL system
Case study on the effects of mass, damping stiffness, and mode coupling


2/ Recalibrate the model based on a test
Objectives of modal recalibration
Description of the modal recalibration technique
Practical exercise in modal recalibration on an uncalibrated model

3/ Determine the dynamic response of a structure subjected to dynamic stresses
Define the data for performing a numerical calculation
Take into account dynamic excitation
Analyse the response


4/The simulation of a shock and random excitation
Understand the technique of response spectra to shocks and random excitation
Apply this technique to a practical model and analyse the response of the structure