Future PhD Thesis in LaMCoS


 Thèse de type RégionChesne Simon
 PhD position supported by IRSNTardif Nicolas

Title : Creep behavior of pre-oxidized zirconium based cladding alloys under LOCA thermal- mechanical conditions

Supervisors :

M. C. Baietto (DR CNRS - LaMCoS)

M. Coret (Pr - GeM)

J. Desquines (HDR - IRSN Cadarache)

J. Rethore (CR CNRS - GeM)

N. Tardif (McF - LaMCoS)

T. Taurine (Engineer - IRSN Cadarache)

Location :

18 months GeM - NANTES

18 months LaMCoS - LYON

Hiring Process :

Presentation in front of an external advisory board : June 2018

PhD beginning :

October 2018

See attached .pdf file for more details.

 Thèse de type CIFRE: Numerical study of the lubrication and scuffing of piston rings: Application to Hybrid Internal Combustion Engines. Lubrecht Ton

Scuffing is a failure mode characterized by a rapid and important surface degradation. It is caused by a lubricant failure, leading to a catastrophic local heat generation.

The multiplication of the start and stop, inherent to a hybrid engine, increase the scuffing risk.

 Thèse de type Cifre: Modélisation du procédé d’aiguilletage dans le cadre de la fabrication de disques de frein pour application aéronautiqueHamila Nahiene
 Thèse de type contractuel (Institut Carnot)Velex Philippe
 PhD position (Chaire VOLVO) Crankshaft Hybrid Control : reduction of torsional vibrations and acyclismRemond Didier

Within the LaMCoS, the PhD student will take in the work of the implementation of a concept of active shock absorber in rotation on the basis of existing developments in translation. The objectives aim at decreasing the present vibrations of twisting on architecture of internal combustion engine but also at limiting the acyclism of these architectures. Based on an analysis of the existing or known solutions, thus the work will consist in developing representative models of behavior on which one or several solutions of activation and\or control will be proposed. These solutions will be, as far as possible, then detailed by a technological point of view to be associated with the laws of control.

This complete model of the various constituent bricks will serve to validate a first estimation of the performance improvements while taking into account their energy balance. The non-stationary character of this behavior will be advantageously handled within the framework of the formalism of the angular approaches proposed besides in the laboratory. This formalism authorizes the separation of the cyclic phenomena associated to the acyclism from the vibratory phenomena in torsion and thus the adaptation and the application of various laws of control.