Mechanical Topology Optimization

Données Générales
Programme Académique	General Engineering Program			Responsable(s) Module : NOYEL Jean-Philippe,SCHUHLER Guillaume
Type d'EC : Cours	Mechanical Topology Optimization (LIIAem08EProjetoptopo)
TD : 4h00 Projet : 12h00 Travail personnel : 10h00 Durée totale: 26h00	Status	Periode Academic Semester	Langue d'enseignement : French

Objectifs Généraux
create an optimized system according to a given specification using topology optimization software choose a representative model of a mechanism argue the differences between experiment and simulation The objectives of this teaching are as follows: Awareness of the concept of optimization Use of topological optimization associated with 3D printing Development of the ability to work independently Development of critical thinking about numerical results

Objectifs Généraux

create an optimized system according to a given specification using topology optimization software
choose a representative model of a mechanism
argue the differences between experiment and simulation
The objectives of this teaching are as follows:
Awareness of the concept of optimization
Use of topological optimization associated with 3D printing
Development of the ability to work independently
Development of critical thinking about numerical results

Contenu
Optimization methods are increasingly used today. In the field of structural design, they make it possible in particular to reduce the mass of a mechanical system and therefore to reduce its production cost (less material), and possibly its cost of use (reduction in energy consumption). ). Among the different methods, topological optimization is currently experiencing strong development because of the interest it represents if it is associated with 3D printing. The objective of this course is to make students aware of this method. The following 3 sessions will be devoted to carrying out a project in a group and independently. This project will consist of the following stages: Mechanical characterization of the material used: creation and 3D printing of test specimens which will be subjected to a tensile test. The anisotropy of the material can be highlighted and characterized. Topological optimization: search for an optimized solution for a given load case. The influence of parameters such as mesh size, boundary conditions or optimization methods should be evaluated. Numerical validation of the optimized structure (simulation on the optimized structure) 3D printing of the optimized structure and mechanical test on this part. The experimental results will be compared with the numerical results; we will then try to explain any differences.

Contenu

Optimization methods are increasingly used today. In the field of structural design, they make it possible in particular to reduce the mass of a mechanical system and therefore to reduce its production cost (less material), and possibly its cost of use (reduction in energy consumption). ). Among the different methods, topological optimization is currently experiencing strong development because of the interest it represents if it is associated with 3D printing. The objective of this course is to make students aware of this method.
The following 3 sessions will be devoted to carrying out a project in a group and independently. This project will consist of the following stages:
Mechanical characterization of the material used: creation and 3D printing of test specimens which will be subjected to a tensile test. The anisotropy of the material can be highlighted and characterized.
Topological optimization: search for an optimized solution for a given load case. The influence of parameters such as mesh size, boundary conditions or optimization methods should be evaluated.
Numerical validation of the optimized structure (simulation on the optimized structure)
3D printing of the optimized structure and mechanical test on this part. The experimental results will be compared with the numerical results; we will then try to explain any differences.

Prérequis
following EC: - Résistance des matériaux - Mécanique du solide - Pratique du calcul des structures - Matériaux pour l’ingénieur - Matériaux pour le BE

Bibliographie
Optimisation des structure mécanique Méthodes numériques et éléments finis - DUNOD - M. Bruyneel, JC Craveur, P Gourmelin

Évaluation(s)
N°	Nature	Coefficient	Objectifs
1	Project	1	all