THESIS: Identification of the nonlinear dynamic performance (H / F)
Description de l'emploi - THESIS: Identification of the nonlinear dynamic performance (H / F)
Bobigny is located nearby the East of Paris and gathers:-Valeo Lighting Systems Headquarter-Lighting & signalization R&D center-Comfort & Driving Assistance R&D center-Information systems of Valeo GroupThe R&D center for Lighting Systems aims at:1 Anticipate the technologic trend /styles and the customer needs for lighting and signalization2-Develop Projects to answer those needs in order to be leader on.THESIS: Valeo Lighting Systems -LaMCoS, INSA LyonTOPIC: nonlinear dynamic performance identification applied to the optical system by inverse method (H / F)Within the Visibility Systems Division, the student will be integrated to the simulation team of R & D center in Bobigny, which hosts more than 500 people.Mission:This is initially? the characterization of the frequency response on the expected optical modules integrated into a projector in a harmonic scan transmitted by the brackets of the projector.? locate nonlinearity that have a significant impact on the frequency response and operational distorted.? to develop reduction method in place will be required under Workbench; it is applied to a subset of headlampIn a second step to identify which inverse methods can be used, it will? assess between deterministic or probabilistic inverse methods is the one which best meet the problem of computing in a steady state excitation frequency response.? Apply methods to a subset that has been previously characterized in test.? In parallel tests characterizations subset projectors will achieve? Applying the inverse method selected from the rest of the connections of the links to the housing of the optical unit, to those of the housing to support the mirror and vibration.Finally, it will identify the models to be applied in accordance with the calculation of excitation and the frequency range for each type of link selected levels. The calculation method reduced the complete headlamp incorporating models and links will be correlated calculations with answers and distorted operational.Professional skills: vibration theory and vibration measurement, dynamics of mechanical structures, simulation, finite element modeling.Fonction du Supérieur :Simulation Manager