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Control of assembly and functional requirements of deformable overconstrained systems: Application on drilling & measuring tools
On May 24, 2017
10h00
Thèse de Oussama ROUETBI (LURPA) Domaine : Mécanique, Génie-Mécanique, Génie Civil
Oussama ROUETBI
Cette thèse is part of a CIFRE thesis.
The jury is composed by:
The jury is composed by:
- M. CHEVALIER Luc, Professeur des Universités, UPEM, Président,
- M. DANTAN Jean-Yves, Professeur des Universités, Arts et Métiers ParisTech, Rapporteur,
- M. TEISSANDIER Denis, Professeur des Universités, Université de Bordeaux, Rapporteur,
- M. ANSELMETTI Bernard, Professeur des Universités, Université Paris-Sud, Directeur de thèse,
- M. PIERRE Laurent, Maître de Conférences, Université Paris-Sud, Co-encadrant de thèse,
- M. DENOIX Henri, Ingénieur Schlumberger, Invité,
Abstract: This research is carried out within a CIFRE doctoral thesis in collaboration between Schlumberger and the LURPA of ENS Paris-Saclay. Schlumberger is an oil service company. It develops measurement tools operating under severe conditions of high temperature and pressure but also dynamic effects such as accelerations producing shocks between the different parts. The thesis permitted the deployment of a new dimensioning and tolerancing rules for deformable hyperstatic assemblies, based on the CLIC method and the ISO standards. The deformation of the parts greatly depends on the geometrical defects. A 3D dimension chains are coupled to a beam models to define a mathematical relations between necessary forces for assembly and tolerances. These models must allow the taking into account of the assembly clearances between parts, their rigidity and the different types of contact between the subassemblies of the studied tools. These multi-physical models allowed to characterize the mechanical behavior as a function of the geometrical deviations of parts. Finally, for more complex studies, finite element models and simulations on Abaqus were carried out and then validated by an experimental campaign of impact behavior.
Keywords: ISO tolerancing, Overconstrained assemblies, Deformable parts, Coupling mechanical and geometric models
- Type :
- Recent Ph.D and HDR defenses
- Contact :
- Send a message
- Place(s) :
- Cachan Campus
Campus de l'ENS de Cachan, amphi E-media (bâtiment Léonard de Vinci)
Documents to download :
- Accès_au_LURPA.pdf (311 kB)
